Colloid and Polymer Science最新文献_第3页

Modulating the surface activity and cleaning efficiency of hexynyl-based nonionic Gemini surfactants via ethoxylation 乙氧基化对己基Gemini非离子表面活性剂表面活性和清洁效率的调节

IF 2.9 4区化学

Colloid and Polymer Science Pub Date : 2026-07-03 DOI: 10.1007/s00396-026-05673-y

Youmei Xing, Tao Hu, Ting Ying, Zhijun Zhang, Chen Wang, Jiani Liu, Zining Liu, Bin Hu, Chengwen Deng, Wen Xu, Weihua Fang, Yunjian Yin, Huier Jiang, Zhen Wu, Guojie Wang

{"title":"Modulating the surface activity and cleaning efficiency of hexynyl-based nonionic Gemini surfactants via ethoxylation","authors":"Youmei Xing, Tao Hu, Ting Ying, Zhijun Zhang, Chen Wang, Jiani Liu, Zining Liu, Bin Hu, Chengwen Deng, Wen Xu, Weihua Fang, Yunjian Yin, Huier Jiang, Zhen Wu, Guojie Wang","doi":"10.1007/s00396-026-05673-y","DOIUrl":"10.1007/s00396-026-05673-y","url":null,"abstract":"<div><p>High-soluble nonionic Gemini surfactants are critically important in applications such as industrial cleaning. Herein, four nonionic Gemini surfactants with varying polyoxyethylene (EO) chain lengths, denoted as S1 (<i>n</i> = 2), S2 (<i>n</i> = 4), S3 (<i>n</i> = 5), and S4 (<i>n</i> = 7), are synthesized using 2,5-dimethyl-3-hexyne-2,5-diol and ethylene oxide as the raw materials. The structures of S1-S4 are confirmed by infrared spectroscopy and nuclear magnetic resonance spectroscopy. The S1-S4 surfactants exhibit a high solubility in both acidic and alkaline solutions and a high cloud point above 65 ℃, demonstrating good high-temperature stability. The surfactant with the shortest EO chain (S1) achieves the highest surface activity, reducing the surface tension to 47.21 mN/m (at 0.1 mol/L), while the surfactant with the longest EO chain (S4) exhibits the optimal cleaning performance with an impressive oil removal efficiency of 80.2%. Meanwhile, we systematically investigate the influence of EO chain length on surface tension, wettability, water solubility, and foaming performance. The results indicate that shorter EO chains contribute to higher surface activity, enhanced wetting performance, and reduced foam stability. In addition, the S1-S4 surfactants possess strong cleaning capabilities. This study provides a theoretical basis for the molecular design and screening of surfactants tailored for different application scenarios such as high-temperature stability, wettability optimization, and oil stain removal.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"304 10","pages":"2541 - 2550"},"PeriodicalIF":2.9,"publicationDate":"2026-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chemical regulation of phase inversion, interfacial microstructure, and rheological behavior in crude oil emulsions 原油乳状液中相转变、界面微观结构和流变行为的化学调控

IF 2.9 4区化学

Colloid and Polymer Science Pub Date : 2026-07-02 DOI: 10.1007/s00396-026-05675-w

Yuchen Wang, Qiansong Guo, Xianda Sun, Chunjing Lu, Limin Suo, Wenjun Ma

{"title":"Chemical regulation of phase inversion, interfacial microstructure, and rheological behavior in crude oil emulsions","authors":"Yuchen Wang, Qiansong Guo, Xianda Sun, Chunjing Lu, Limin Suo, Wenjun Ma","doi":"10.1007/s00396-026-05675-w","DOIUrl":"10.1007/s00396-026-05675-w","url":null,"abstract":"<div><p>During chemical flooding, crude oil readily forms emulsions upon contact with injected fluids. The associated phase transition, interfacial microstructural evolution, and stability variation can significantly affect oil–water interfacial behavior and flow characteristics. To clarify the underlying mechanisms under different chemical conditions, this study investigated emulsions formed between dehydrated crude oil and produced wastewater, salt solutions, alkali solutions, polymer solutions, surfactant systems, alkali–surfactant systems, and alcohol solutions. Confocal laser scanning microscopy, droplet size analysis, and rotational rheological measurements were used to systematically evaluate the effects of chemical type, concentration, water cut, and crude-oil SARA fractions on emulsion properties. The results show that water cut is the dominant factor controlling emulsion phase behavior, while chemical type further affects the phase inversion point and microstructural evolution. Resins and asphaltenes, as the main natural surface-active components, participate in interfacial-film formation and influence emulsion stability. Overall, salt systems more readily promote emulsion destabilization; alkali systems inhibit droplet coarsening to some extent; polymer systems show relatively limited effects; alkali–surfactant systems exhibit pronounced concentration dependence; and alcohol systems contribute to emulsion stability. The rheological results mainly reflect the bulk rheological behavior of emulsions, and all systems exhibit shear-thinning characteristics. These findings provide a theoretical basis for phase-state regulation and stability evaluation of crude oil emulsions during chemical flooding.</p></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"304 9","pages":"2473 - 2489"},"PeriodicalIF":2.9,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148807274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of the substitution and crosslinking degrees of dextran-based single-chain polymeric nanoparticles on their interactions with apramycin 葡聚糖基单链聚合物纳米颗粒取代度和交联度对其与阿帕霉素相互作用的影响

IF 2.9 4区化学

Colloid and Polymer Science Pub Date : 2026-07-01 DOI: 10.1007/s00396-026-05670-1

José C. Ibáñez, Julie Movellan, Iraida Loinaz, Jose M. Miramon, Damien Dupin

{"title":"Effect of the substitution and crosslinking degrees of dextran-based single-chain polymeric nanoparticles on their interactions with apramycin","authors":"José C. Ibáñez, Julie Movellan, Iraida Loinaz, Jose M. Miramon, Damien Dupin","doi":"10.1007/s00396-026-05670-1","DOIUrl":"10.1007/s00396-026-05670-1","url":null,"abstract":"<div><p>Dextran-based single chain polymeric nanoparticles (DXT-SCPN) were developed as drug delivery system to enhance inhalation-based antibiotic and improve biofilm penetration. The nanoparticles carry negative charges, allowing electrostatic interactions with positively-charged molecules at physiological pH. Apramycin (apry), a positively charged antibiotic, could interact with anionic DXT-SCPN. Here, we aimed at studying the effect of the main physico-chemical parameters of DXT-SCPN, i.e. degree of cross-linking (CL) and substitution (DS), on their interactions with apry. Thus, by adjusting the reaction parameters, DXT-SCPN were produced with CL at 5% and 15%, while DS could be adjusted at 25, 50 and 70%. The resulting nanoparticles exhibited hydrodynamic diameters comprised between 13 and 17 nm with a polydispersity index of 0.26–0.32, while the number-averaged-diameter determined by Transmission Electron Microscopy was found to be 7–12 nm. As expected, DS proved to affect significantly DXT-SCPN ζ-potential as higher number of anionic carboxylate groups, more negatively charged nanoparticles, resulted in higher amount of interactions with apry, from 20 to 40 wt% as DS increased. Surface tension studies have shown that all DXT-SCPN<sub>apry</sub> nano-formulation, except for lower DS, showed sufficient interfacial activity, from 59.34 to 62.07 mN/m, to anticipate good nebulization for future administration by inhalation. Finally, the higher cytocompatible concentration of the nano-formulation for A549, a lung cell line, was found to be around 10 mg/mL. Altogether it was found that the nano-antibiotic with better stability and higher cytocompatibility was obtained for DXT-SCPN with DS at 50% and CL of 5% formulated with 30 wt% of apry.</p></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"304 10","pages":"2525 - 2540"},"PeriodicalIF":2.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cobalt embedded-melanin/alginate complex as an alternative solid phase for purification of His-tagged proteins 钴包埋-黑色素/海藻酸盐复合物作为纯化his标记蛋白的替代固相

IF 2.9 4区化学

Colloid and Polymer Science Pub Date : 2026-06-30 DOI: 10.1007/s00396-026-05674-x

Le Thi Hong Nhung, Pham Hai Long, Ha Minh Ngoc, Dang Minh Hieu, Vu Van In, Nguyen Dinh Thang

{"title":"Cobalt embedded-melanin/alginate complex as an alternative solid phase for purification of His-tagged proteins","authors":"Le Thi Hong Nhung, Pham Hai Long, Ha Minh Ngoc, Dang Minh Hieu, Vu Van In, Nguyen Dinh Thang","doi":"10.1007/s00396-026-05674-x","DOIUrl":"10.1007/s00396-026-05674-x","url":null,"abstract":"<div><p>Recombinant enzymes and proteins are increasingly used in the key areas of biotechnology, environmental science, and biomedicine. To facilitate purification, recombinant proteins are often expressed with various affinity tags, with the His-tag being the most common. Melanin has emerged as a promising biomaterial with different excellent physicochemical properties. In this study, we successfully developed and characterized a melanin/alginate-based material incorporating cobalt ions (Co-M/A) as an alternative stationary phase for His-tagged protein purification. Co-M/A beads exhibited defined morphology and structural stability, which were critical for reproducible protein binding. EDX, XRF, XRD, and XRF analyses confirmed the presence of cobalt species in Co-M/A particles, while FTIR spectra suggested evidence of Co²<sup>+</sup> coordination with carboxyl and hydroxyl groups in the M/A matrix. After loading the protein solution on the Co-M/A beads, the emergence of amide I and amide II peaks was observed, indicating the successful capture of His-tagged proteins through specific coordination between histidine residues and Co²<sup>+</sup> ions. Functionally, Co-M/A demonstrated high specificity toward His-tagged proteins of different sizes and structures, while showing negligible non-specific binding to non-tagged proteins. Impressively, the purity of eluted proteins exceeded 95.3% after a single purification step using Co-M/A beads. Importantly, the functional activities of purified proteins, including nanobodies (A8) and enzymatic proteins (Lc-BoNT/A), were well preserved as confirmed by SDS-PAGE analysis and Western blotting analyses, ensuring downstream applications. In conclusion, this study demonstrates the successful development of Co-M/A beads as a promising stationary phase for His-tagged protein purification with high efficiency.</p></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"304 9","pages":"2491 - 2503"},"PeriodicalIF":2.9,"publicationDate":"2026-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148807660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis, Micellization, and Surface Characteristics of 1-Tetradecyl-3-methylimidazolium Bromide in Aqueous PEGylated solvents 聚乙二醇化溶剂中1-十四烷基-3-甲基咪唑溴的合成、胶束化及表面特性

IF 2.9 4区化学

Colloid and Polymer Science Pub Date : 2026-06-29 DOI: 10.1007/s00396-026-05667-w

Rajat Sinhmar, Vickramjeet Singh

{"title":"Synthesis, Micellization, and Surface Characteristics of 1-Tetradecyl-3-methylimidazolium Bromide in Aqueous PEGylated solvents","authors":"Rajat Sinhmar, Vickramjeet Singh","doi":"10.1007/s00396-026-05667-w","DOIUrl":"10.1007/s00396-026-05667-w","url":null,"abstract":"<div><p>In this study, the micellization behavior of the synthesized surface-active ionic liquid (SAIL), 1-tetradecyl-3-methylimidazolium bromide ([C₁₄mim]Br), was investigated in aqueous deep eutectic solvents (5 wt%, 10 wt%, and 15 wt%) using conductivity, surface tension, and dynamic light scattering (DLS) techniques. Two polyethylene glycol-based DESs with citric acid (CA) or malonic acid (MA) were prepared and characterized using Fourier transform infrared (FTIR) spectroscopy and differential scanning calorimetry (DSC). The critical micelle concentration (CMC) of the synthesized SAIL was determined and CMC of SAIL increase due to SAIL–DES interactions which is dependent upon the concentration of DESs. Thermodynamic parameters, standard enthalpy of micellization (ΔH°ₘ), standard Gibbs free energy of micellization (ΔG°ₘ), and standard entropy of micellization (ΔS°ₘ), were calculated and discussed. Surface tension measurements were further used to evaluate parameters such as the CMC, surface tension at CMC (γ<sub>cmc</sub>), surface excess concentration (Γ<sub>max</sub>), surface pressure (π<sub>cmc</sub>), and minimum area per molecule (A<sub>min</sub>) in the presence of both DESs. The results suggest that the addition of DES enhances the surface activity of the SAIL, with adsorption being more dominant than micellization. Furthermore, the effect of DESs on micelle size was studied using DLS. The findings of this study are expected to be useful for understanding colloidal systems involving SAILs and hydrated DESs.</p></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"304 10","pages":"2509 - 2524"},"PeriodicalIF":2.9,"publicationDate":"2026-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148962112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Acrylic acid grafted chitosan composite with enhanced Cu2+ adsorption performance: synthesis, characterization, kinetics and thermodynamics 增强Cu2+吸附性能的丙烯酸接枝壳聚糖复合材料：合成、表征、动力学和热力学

IF 2.9 4区化学

Colloid and Polymer Science Pub Date : 2026-06-25 DOI: 10.1007/s00396-026-05668-9

Tong Zhang, Mingyan Dang, Xutong Zhang, Chengzhi Jiang, Yichen Li

{"title":"Acrylic acid grafted chitosan composite with enhanced Cu2+ adsorption performance: synthesis, characterization, kinetics and thermodynamics","authors":"Tong Zhang, Mingyan Dang, Xutong Zhang, Chengzhi Jiang, Yichen Li","doi":"10.1007/s00396-026-05668-9","DOIUrl":"10.1007/s00396-026-05668-9","url":null,"abstract":"<div><p>Chitosan-based adsorbents are limited by low adsorption capacity and poor stability in heavy metal remediation. To address these limitations, an acrylic acid-grafted chitosan composite (CTS-g-AAC) was synthesized via a two-step method involving acrylic acid grafting and glutaraldehyde cross-linking. The Cu<sup>2+</sup> adsorption performance and mechanism of CTS-g-AAC were systematically investigated. Scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) characterizations confirmed the porous structure of CTS-g-AAC, which favors mass transfer, successful grafting of acrylic acid, and coordination-chelating interactions between Cu<sup>2+</sup> and surface functional groups including -NH₂, -OH and -COO⁻. Under optimal conditions (pH 4, initial Cu<sup>2+</sup> concentration 200 mg·L⁻¹, temperature 323 K, and adsorption time 4 h), the maximum Cu<sup>2+</sup> adsorption capacity of CTS-g-AAC reached 192.96 mg·g⁻¹. Pseudo-second-order kinetic model fitting demonstrated that chemisorption dominated the rate-limiting step of adsorption, and the excellent fit of isothermal data to the Langmuir model further verified the monolayer adsorption characteristic of the process. Thermodynamic results showed negative ΔG, positive ΔH (22.28 kJ·mol⁻¹) and positive ΔS, demonstrating that the adsorption process was spontaneous, endothermic and accompanied by increased system disorder. Multi-dimensional evidence confirmed that coordination-chelating chemisorption is the dominant mechanism. CTS-g-AAC exhibits great potential for Cu<sup>2+</sup> removal from wastewater, and the proposed two-step modification strategy provides a feasible approach to enhance the performance of chitosan-based adsorbents for heavy metal remediation.</p></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"304 9","pages":"2437 - 2452"},"PeriodicalIF":2.9,"publicationDate":"2026-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148807334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stimuli-responsive soft actuators based on colloidal nanomaterials 基于胶体纳米材料的刺激响应软致动器

IF 2.9 4区化学

Colloid and Polymer Science Pub Date : 2026-06-22 DOI: 10.1007/s00396-026-05665-y

Qian Zhang, Shuyi Tian, Yuanyuan Cao, Yongsheng Li

{"title":"Stimuli-responsive soft actuators based on colloidal nanomaterials","authors":"Qian Zhang, Shuyi Tian, Yuanyuan Cao, Yongsheng Li","doi":"10.1007/s00396-026-05665-y","DOIUrl":"10.1007/s00396-026-05665-y","url":null,"abstract":"<div><p>Stimuli-responsive soft actuators are capable of converting external stimuli into macroscopic mechanical motion and have shown extensive applications in soft robots, flexible wearable electronics, and artificial muscles. Owing to their abundant surface-active sites, excellent dispersibility, high structural anisotropy, and diverse physicochemical responsiveness, colloids have served as ideal functional fillers or responsive units for the construction of stimuli-responsive soft actuators. This enables the design of soft actuators with multi-field coupled responses and complex motion patterns, overcoming the limitations of traditional homogeneous materials. This review focuses on the most recent research advances in stimuli-responsive soft actuators based on colloidal nanomaterials. Following a detailed introduction of colloids currently applied in actuation systems, five types of colloid-based soft actuators, including light-responsive, heat-responsive, magnetically responsive, electrically responsive, and solvent-responsive actuators, are systematically summarized, with a focus on their actuation mechanisms, fabrication methods, and corresponding actuation behaviors. Finally, several typical applications of these actuators, such as soft grippers, artificial muscles, and biomimetic robots, are highlighted to provide an intuitive perspective on their application areas. This review is expected to offer novel inspirations for the construction of next-generation high-performance and intelligent actuators.</p></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"304 9","pages":"2163 - 2187"},"PeriodicalIF":2.9,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148807471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of ZrO₂ nanoparticle incorporation in brake composites on tribofilm evolution and tribological mechanisms on the steel counterface 纳米ZrO₂颗粒掺入制动复合材料对钢表面摩擦膜形成及摩擦学机理的影响

IF 2.9 4区化学

Colloid and Polymer Science Pub Date : 2026-06-22 DOI: 10.1007/s00396-026-05655-0

Qinglun Che, Zhenhang Yang, Ruao Dong, Kewei Li, Jinhong Chen, Jianjun Zhang, Shaomei Zheng, Guoxiang Hao, Huifa Shi, Jingjing Zhang

{"title":"Influence of ZrO₂ nanoparticle incorporation in brake composites on tribofilm evolution and tribological mechanisms on the steel counterface","authors":"Qinglun Che, Zhenhang Yang, Ruao Dong, Kewei Li, Jinhong Chen, Jianjun Zhang, Shaomei Zheng, Guoxiang Hao, Huifa Shi, Jingjing Zhang","doi":"10.1007/s00396-026-05655-0","DOIUrl":"10.1007/s00396-026-05655-0","url":null,"abstract":"<div><p>A critical challenge remains for non-asbestos organic (NAO) brake composites reinforced with hard ceramic ZrSiO₄ microparticles, which act as the primary load-bearing phase to effectively enhance wear resistance yet inevitably induce severe scratching damage to the steel counterface. To resolve this conflict between wear protection and surface damage, this paper systematically introduced ZrO₂ nanoparticles into ZrSiO₄-containing NAO composites and investigated their influence on tribological behavior and tribofilm evolution under varying sliding speeds and contact pressures. The results revealed an obvious dual mechanism between ZrSiO₄ microparticles and ZrO₂ nanoparticles. ZrSiO₄ microparticles support the external load and promote intense tribo-oxidation that forms a protective iron-oxide layer at elevated speeds, yet their aggressive plowing action continuously scores the steel surface. Conversely, ZrO₂ nanoparticles can effectively remove pre-existing oxide layers on the steel surface and promote tribo-sintering of wear debris into a compact, continuous tribofilm, that effectively passivates the counterface and suppresses scratching. However, this protective sintered tribofilm is repeatedly torn and dislodged by hard ZrSiO₄ particles, resulting in continuous tribofilm regeneration that significantly raises the specific wear rate of the composite and introduces pronounced friction instability during the running-in stage. The synergy between ZrSiO₄ and ZrO₂ thus dictates a fundamental trade-off: nanoparticle-enabled counterface protection is obtained at the expense of moderately sacrificed composite wear resistance. These findings clarify the micro-nano synergistic tribological mechanism and provide a mechanistic basis for designing next-generation brake materials that balance counterface friendliness with overall tribological performance.</p></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"304 9","pages":"2413 - 2424"},"PeriodicalIF":2.9,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148807498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanical recyclability of an industrial poly(ether-ether-ketone) (PEEK): Performance evaluation and process optimization 工业聚醚醚酮（PEEK）的机械可回收性：性能评价和工艺优化

IF 2.9 4区化学

Colloid and Polymer Science Pub Date : 2026-06-22 DOI: 10.1007/s00396-026-05666-x

Maud Plouzeau, Mehdi Trolong, Laurent Cauret

{"title":"Mechanical recyclability of an industrial poly(ether-ether-ketone) (PEEK): Performance evaluation and process optimization","authors":"Maud Plouzeau, Mehdi Trolong, Laurent Cauret","doi":"10.1007/s00396-026-05666-x","DOIUrl":"10.1007/s00396-026-05666-x","url":null,"abstract":"<div><p>This study investigated the recyclability potential of an industrial poly(ether-ether-ketone) (PEEK). The research aims to evaluate the effects of mechanical reprocessing on PEEK’s structure, thermal behavior, and mechanical properties, with a particular focus on PEEK pelletizing as a process optimization technique. Thermal and spectroscopic analyses (FTIR and DSC) indicated that the first reprocessing cycle induces polymer chain scission, while subsequent cycles promote the formation of branching and/or partial cross-linking structures, slightly reducing the degree of crystallinity and increasing the crystallization temperature. Melt Flow Index (MFI) measurements suggest no major change in flow behavior under the tested conditions. Dynamic mechanical analysis (DMA) indicated an increase in glass transition temperature after recycling, consistent with reduced molecular mobility due to cross-linking. Mechanical testing demonstrated that after two recycling cycles, a moderate decrease in tensile modulus and impact strength occurs, although the overall changes remained moderate. Interestingly, the regranulated PEEK sample exhibited improved flexural stiffness, while maintaining good processability. Overall, the results suggest that PEEK can be reprocessed through multiple recycling cycles and that pelletizing helps ensure stable manufacturing without significant loss of performance under the investigated conditions, supporting its potential for industrial reuse under the investigated conditions.</p></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"304 9","pages":"2425 - 2435"},"PeriodicalIF":2.9,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148807472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative study of PHI ternary solid dispersions prepared by different techniques: structural characterization, solubility, and cytocompatibility 不同制备技术制备的PHI三元固体分散体的比较研究：结构表征、溶解度和细胞相容性

IF 2.9 4区化学

Colloid and Polymer Science Pub Date : 2026-06-19 DOI: 10.1007/s00396-026-05663-0

Guoyu Sun, Hejie Wang, Jie Guo, Qing Wen, Shenghua Zha, Yuqing Liu, Rongrong Tian, Qingsheng Zhao

{"title":"Comparative study of PHI ternary solid dispersions prepared by different techniques: structural characterization, solubility, and cytocompatibility","authors":"Guoyu Sun, Hejie Wang, Jie Guo, Qing Wen, Shenghua Zha, Yuqing Liu, Rongrong Tian, Qingsheng Zhao","doi":"10.1007/s00396-026-05663-0","DOIUrl":"10.1007/s00396-026-05663-0","url":null,"abstract":"<div><p>Jet milling is a commonly used technique in the field of ultrafine powder preparation, but it is rarely employed for drug delivery systems. This study aimed to enhance the aqueous solubility of phillyrin (PHI)—a bioactive lignan compound isloated from <i>Forsythia suspensa</i> leaves—by developing ternary solid dispersions (SDs) using dimethyl-β-cyclodextrin (DM-β-CD) and Tween 80 via different techniques. Phase solubility studies identified DM-β-CD as the optimal carrier. Ternary SDs with a weight ratio of PHI: DM-β-CD: Tween 80 = 1:4.75:0.25 were prepared via co-grinding (SD1), spray drying (SD2), and jet milling (SD3). Comprehensive physicochemical characterization (FT-IR, PXRD, SEM, <sup>1</sup>H NMR, DSC) revealed structural modifications. Evaluations included solubility, antioxidant activity, antibacterial, and cytotoxicity profiles. Structural analyses confirmed amorphous transformation and reduced particle size in the SDs. In PHI SD3, the water solubility of PHI was enhanced 7-fold to 1.75 mg/mL. The SDs exhibited enhanced antioxidant and antibacterial activities relative to pure PHI. Cytotoxicity assays indicated no significant toxicity, with cell viability exceeding 70% at concentrations ≤ 200 µg/mL. Jet milling successfully produced solvent-minimized ternary PHI solid dispersions, significantly improving solubility and bioactivity. This approach demonstrates considerable potential for optimizing the delivery of poorly soluble natural compounds such as PHI.</p></div>","PeriodicalId":520,"journal":{"name":"Colloid and Polymer Science","volume":"304 9","pages":"2379 - 2394"},"PeriodicalIF":2.9,"publicationDate":"2026-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148807649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0