Journal of Polymer Research最新文献

{"title":"Effect of reaction time on the properties of poly(xylitol sebacate) for nanoparticle formation","authors":"Kadisha M. Culpepper,&nbsp;Jasmin B. Tindal,&nbsp;Natalie Y. Arnett","doi":"10.1007/s10965-024-04114-0","DOIUrl":"10.1007/s10965-024-04114-0","url":null,"abstract":"<div><p>This research aims to correlate poly(xylitol sebacate) (PXS) nanoparticle formation via nanoprecipitation in the presence of Pluronic® F-127 to changes in polymer reaction times. PXS is successfully synthesized using xylitol and sebacic acid via melt polymerization (MP) at 10, 15 and 20 h. ¹H-NMR and ¹³C-NMR confirmed the successful formation of PXS branched structures by the conversion of hydroxyl groups to acyl groups and ester bond formation in two different environments. The degree of branching and gel fraction increased with longer reaction time, which resulted in the crosslinking of PXS-MP-20H, deeming it insoluble for nanoparticle formation. Thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) confirmed the thermal stability up to ~ 200 °C and an amorphous nature with subambient glass transition temperatures (T_g). Among all polyesters, PXS-MP-15H showed best and only nanoparticle formation with average diameter size ranging from 112 to 132 nm for curcumin-loaded and unloaded respectively confirmed using dynamic light scattering (DLS). PXS-MP-15H nanoparticles had a curcumin encapsulation efficiency of 23.9%. This study shows the potential of highly branched polyesters such as PXS for use as drug carriers for targeted delivery.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"31 10","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142255688","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}

{"title":"Preparation of slippery liquid-infused porous surface with high stability by SiO2-assisted polyimide porous membrane","authors":"Yawen Guo,&nbsp;Li Yang,&nbsp;Chengcheng Lv,&nbsp;Chongyang Mai,&nbsp;Lielun Zhao,&nbsp;Yan Jiang,&nbsp;Hongwen Zhang","doi":"10.1007/s10965-024-04120-2","DOIUrl":"10.1007/s10965-024-04120-2","url":null,"abstract":"<div><p>Inspired by nepenthes pitcher plants, the slippery liquid-infused porous surfaces have received extensive attention. In its practical application, good oil storage and oil-locking ability are important guarantee for the surface to maintain the interface performance for a long time. In this paper, mesoporous silica (KCC-1) was obtained by cetyltrimethylammonium bromide (CTAB) as template agent, urea as a hydrolyzing agent, and TEOS as silicon source reagent, then modified with (3-Aminopropyl) trimethoxysilane. Then combined with the breath figures, amino-modified mesoporous silica, 3,3’-4,4’-biphenyltetracarboxylic dianhydride (S-BPDA), 2,2’-bis[4-( 4-aminophenoxyphenyl)]propane (BAPP) were used as raw materials to prepare polyimide SLIPS with good stability by a two-step method. The wettability and stability of SLIPS were investigated, and the results show that the introduction of mesoporous silica inorganic nanoparticles enhanced the performance of SLIPS. Among them, the sliding angle of polyimide SLIPS with a nanoparticle content of 10% is 2°, which has good self-cleaning performance, antifouling performance, and stability.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"31 10","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142255687","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}

{"title":"Exploring the fabrication of temperature-regulated spray-bonded cotton using eutectic dual-network phase transition microspheres","authors":"Junwen Che,&nbsp;Hong Zhang,&nbsp;Jiexiang Zeng,&nbsp;Jianyu Jiang,&nbsp;Zijian Bai,&nbsp;Yan Wang,&nbsp;Fankai Zhang","doi":"10.1007/s10965-024-04134-w","DOIUrl":"10.1007/s10965-024-04134-w","url":null,"abstract":"<div><p>To achieve effective temperature-regulated modification of spray-bonded cotton for superior thermal management capabilities, a dual-network phase transition microspheres (PCP) was developed through a one-step process using emulsion polymerization. This innovative approach incorporated eutectic polyethylene glycol (PEG) as the phase change component, chemically cross-linked polyacrylamide (PAM) as the first network, and ionically cross-linked calcium alginate (CA) as the second network. The PCP, which contains PEG solid-loaded in the dual network, was utilized as a modifier for the post-treatment of spray-bonded cotton using a coating technique. Key findings reveal that the effectively immobilization of PEG has been, without any abserved chemical reactions between PEG and PAM/CA. Additionally, PEG maintained its crystalline properties when combined with PAM/CA. The PCP exhibited a distinct morphology with smooth, spherical particles averaging round 5 μm in diameter. The optimized PCP sample exhibits a melting onset temperature of 37.20 °C, a melting enthalpy of 92.59 J·g⁻¹, and impressive heat resistance. The resulting temperature-regulated spray-bonded cotton (TRSBC) displayed intelligent temperature control characteristics with a melting onset at 37.65 °C and a latent heat of 32.08 J·g⁻¹. Compared to untreated spray-bonded cotton (USBC), TRSBC exhibited a notable delay effect in both heating and cooling processes, resulting in a temperature differential of 23.5 °C during heating and 16.3 °C during cooling, underscoring its superior temperature control capabilities. Research indicates that TRSBC possesses significant potential in thermal management applications, encompassing clothing, high-tech textiles, and temperature-regulating sandwich panels, thereby presenting considerable opportunities for commercial ventures.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"31 10","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142255689","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}

{"title":"Fluid simulation of different solvents and additives for the preparation of PVDF blended membranes by NIPS method","authors":"Li XinQing,&nbsp;Fang Ping,&nbsp;Liu Kang,&nbsp;Jiang YuMeng","doi":"10.1007/s10965-024-04131-z","DOIUrl":"10.1007/s10965-024-04131-z","url":null,"abstract":"<div><p>Membrane separation technology is one of the most widely studied methods for wastewater treatment. This paper is based on the non-solvent-induced phase separation (NIPS) method, which is combined with phase-field simulation to develop a fluid model for the volume fraction of tetrameric polyvinylidene fluoride (PVDF).In this paper, DMSO, DMAc and DMF are used as solvents, and pure water is used as a gel bath to simulate the relevant parameters of PVDF membrane; and PVP and LiCl are used as additives, and DMF and DMAc are used as solvents for the two-by-two combinations, and by calculating the relevant parameters of the PVDF quaternary membrane system, comparing and verifying the simulation results through experiments. results show that: the different solvents on the PVDF membrane in the order of DMSO &gt; DMAc &gt; DMF; additive LiCl system, the polymer diffusion rate in the polymer solution layer are faster than the PVP system. However, the top layer of the polymer solution layer in the PVP system is relatively flat, while the top layer of the polymer solution layer in the additive LiCl system is more undulating or even broken, indicating that LiCl has a greater influence on the membrane than PVP.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"31 9","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142268880","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}

{"title":"Synthesis and salt resistance of non-ionic polymer P (AM/ APEG400/NVP/SM)","authors":"Haiyang Tian,&nbsp;Yunfeng Shi,&nbsp;Heng Zhang,&nbsp;Jie Liu,&nbsp;Lei Li,&nbsp;Peng Tang","doi":"10.1007/s10965-024-04129-7","DOIUrl":"10.1007/s10965-024-04129-7","url":null,"abstract":"<div><p>The non-ionic hydrophobic associative copolymer AANS was synthesized by micellar polymerization using acrylamide (AM), allyl polyoxyethylene ether (APEG400), N-vinyl pyrrolidone (NVP) and stearyl methacrylate (SM) as raw materials, 2, 2'-azobis (2-methylpropionamidine) dihydrochloride (V50) as initiator, sodium dodecyl sulfate (SDS) as surfactant. The temperature resistance, salt resistance and rheological properties of the polymer were tested by viscometer and rheometer. The change of polymer microstructure in salt solution was analyzed by scanning electron microscopy. The viscosity test results showed that when the polymer concentration was higher than CAC, the polymer solution exhibited good salt resistance and presented good salt thickening performance. The effect of temperature on the salt resistance of polymer solution showed different rules. With the increase in temperature, the resistance of the polymer to NaCl decreased gradually, while the resistance of the polymer to CaCl₂ increased first and then decreased. The resistance of the polymer to CaCl₂ showed a special temperature response. Viscoelastic and shear tests showed that the polymer possessed more robust resistance to extreme sodium chloride concentration than extreme calcium chloride concentration. Micro-morphology and size analysis suggested that the microstructure of the polymer gradually became dense and compact in the salt solution. The results showed that this novel non-ionic hydrophobically associating polymer possessed potential application value in ultra-high salinity reservoirs.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"31 9","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208356","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}

{"title":"Preparation of amphiphilic block copolymers via RAFT polymerization and preliminary properties exploration of blended membranes with PVDF","authors":"Jianying Ma,&nbsp;Mingdong Li,&nbsp;Liting Sun,&nbsp;Bing Nie,&nbsp;Chunlei Cao","doi":"10.1007/s10965-024-04112-2","DOIUrl":"10.1007/s10965-024-04112-2","url":null,"abstract":"<div><p>Polyvinylidene difluoride (PVDF) membranes have low surface tension and strong hydrophobicity in water treatment process, and are easily polluted by organic substances. Blending modification can effectively improve the hydrophilicity. The surface of modified membranes are easy to form hydrophilic layer to prevent contact between pollutants and membranes, thus improving the anti-pollution properties. Two amphiphilic block copolymers were synthesized by reversible addition-fragmentation chain transfer (RAFT) radical polymerization. The block copolymers and PVDF were mixed by blending method to form hydrophilic modified membranes. The membranes hydrophilicity, surface PAA coverage, and anti-pollution properties increased with increasing ratios of block copolymers/PVDF and PAA in block copolymers. The anti-pollution properties depended more strongly on membranes surface hydrophilicity when block copolymers chemical structures, that was, the PAA ratios, were changed, rather than the ratios change of block copolymers/PVDF. The block copolymers improved crystallization performance of PVDF because of the role of nucleating agent of block copolymers.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"31 9","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208355","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}

{"title":"Thermal and mechanical properties of honeycomb sandwich panel of polyurethane nanocomposite reinforced with nanoclay","authors":"Zahra Sajadian,&nbsp;Seyed Mojtaba Zebarjad,&nbsp;Maryam Bonyani","doi":"10.1007/s10965-024-04130-0","DOIUrl":"10.1007/s10965-024-04130-0","url":null,"abstract":"<div><p>This study investigated the thermal and mechanical properties of polyurethane foam (PUF) sandwich panels reinforced with varying amounts of clay nanoparticles (0, 0.5, 1 and 2 wt%) fabricated using the compression molding process. However, these composites were fixed to cores with a honeycomb structure. The morphology of PUF sandwich panels reinforced with clay nanoparticles was examined by scanning electron microscopy (SEM). The presence of clay nanoparticles in the honeycomb structure let to a reduction in cell size and an increase in the number of cells per unit volume. The impact of clay nanoparticles on the thermal properties of PUF reinforced with clay nanoparticles was investigated using thermogravimetric and dynamic mechanical thermal analysis (DMTA). The results indicated that the incorporation of clay nanoparticles as reinforcement enhanced the thermal properties of the PUF sandwich panel samples. Mechanical characterization technique including compression, three-point bending and drop weight impact tests displayed that the PUF reinforced with 1 wt% clay nanoparticles exhibited the most significant improvement in mechanical properties.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"31 9","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208357","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}

{"title":"Simultaneously improving toughness and strength for biodegradable Poly (lactic acid) modified by rice husk and acetyl tributyl citrate","authors":"Y. B. Wang,&nbsp;L. Ren,&nbsp;H. N. Gan,&nbsp;Y. G. Han,&nbsp;M. F. Xu,&nbsp;Y. H. Wang,&nbsp;Q. Liu,&nbsp;M. Y. Zhang","doi":"10.1007/s10965-024-04127-9","DOIUrl":"10.1007/s10965-024-04127-9","url":null,"abstract":"<div><p>Developing a stiffness-toughness balance, low-cost, and biodegradable PLA composite is an effective strategy for improving product market competitiveness, reducing dependence on petroleum-based resources and protecting the environment. Rice husk (RH) is extensively used as a filler in polymers, but the addition of too much rice husk into PLA has damaged the toughness of the composite. In this work, fully biodegradable composites with a stiffness-toughness balance and low cost are successfully fabricated through melt blending of PLA, RH and acetyl tributyl citrate (ATBC), named PLAC0, PLAC3, PLAC6, PLAC9, PLAC12, PLAC15, PLAC18, PLAC20 respectively according to amount of ATBC (0phr, 3phr, 6phr, 9phr, 12phr, 15phr, 18phr, 20phr). The results show that bio-based plasticizer ATBC can improve the flowability of PLA composites, further enhancing their processability, which promotes the dispersion of RH in PLA. The impact strength and elongation at break of PLAC20 reach the value of 100 J/m and 148%, achieving an increase of 4.3 and 60.1 times compared with PLAC0, respectively. The torque rheological test shows that the maximum torque and equilibrium torque of PLAC18 decrease by about 67.4% and 63.5% respectively compared to PLAC0. This suggests a decrease in friction between PLA molecular chains, thereby increasing the fluidity of PLA composites and indicating a significant improvement in processing performance. As the ATBC amount increases, the water absorption rate of the composite progressively rises, while the contact angle steadily diminishes, resulting in the improvement for hydrophilicity, thereby broadening its potential applications.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"31 9","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208358","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}

{"title":"Study on the structure, crystallization behavior, and properties of PVCH-PE-PVCH Block copolymers","authors":"Xia Hua,&nbsp;Shangfeng Wu,&nbsp;Ying Wang,&nbsp;Li-Zhi Liu,&nbsp;Yuanxia Wang,&nbsp;Ying Shi,&nbsp;Qi Zhang","doi":"10.1007/s10965-024-04136-8","DOIUrl":"10.1007/s10965-024-04136-8","url":null,"abstract":"<div><p>Investigating the effects of different segment compositions in block copolymers on their performance is crucial for enhancing material properties and developing new applications. In this study, we investigate the impact of differing segment compositions on the crystallization behavior, microphase separation characteristics, and physical properties of Poly(vinylcyclohexane)-b-poly(ethylene)-b-poly(vinylcyclohexane) (PVCH-PE-PVCH) block copolymers. In PVCH-PE-PVCH block copolymers, the longer PE segments significantly enhance crystallization capability and order. These long PE segments not only facilitate more effective microphase separation, promoting the formation of larger structural domains, but also favor the crystallization of the PE phase, thereby markedly improving the material’s mechanical and optical properties. This reveals the pivotal role of the synergistic effect between long-chain PE distribution and microphase separation in regulating the structure and performance of high-performance polymer materials. Although theoretically, high PE content and high molecular weight are conducive to performance enhancement, this was not fully realized under conditions of weak phase separation capability and shorter PE chains. Therefore, we emphasize that optimizing the performance of these high-performance block copolymers through precise molecular design is feasible, providing powerful strategies and theoretical support for designing novel materials with specific functionalities.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"31 9","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208359","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}

{"title":"Preparation of epoxy-functionalized acrylonitrile/(ethylene/propylene/diene mischpolymer)/ styrene (AES) copolymer (GAES) resins by high-temperature solution polymerization","authors":"Liting Sun,&nbsp;Mingdong Li,&nbsp;Bing Nie,&nbsp;Jianying Ma,&nbsp;Chunlei Cao","doi":"10.1007/s10965-024-04101-5","DOIUrl":"10.1007/s10965-024-04101-5","url":null,"abstract":"<div><p>In this paper, epoxy-functionalized AES resins (GAES resins) were prepared by high-temperature solution polymerization, and FTIR spectrograms demonstrated the successful grafting of styrene (St), acrylonitrile (AN), and glycidyl methacrylate (GMA) onto ethylene/propylene/diene mischpolymer (EPDM) rubbers. The influences of reaction conditions, i.e. the content of initiator and chain transfer agent, EPDM and GMA on the grafting ratio, composition of free copolymers, molecular weights and polymer dispersity index (PDI) of GAES resins were detaily investigated. The influence of GMA content on the thermal stabilities of GAES resins was also discussed. Experimental results showed that under the optimized experimental conditions, the highest grafting ratio of GAES resins reached to 39.2% and the grafting efficiency was 35.3%. Under the same reaction conditions, the molecular weights of free copolymers reached to 70,000 g mol⁻¹. The initiator had no obvious influence on the composition of free copolymers, but the component of GMA in free copolymers increased gradually with increasing content of EPDM. Thermogravimetry (TG) analysis results indicated that the incorporation of GMA decreased the thermal stabilities of GAES resins.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"31 9","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208354","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}