Macromolecular Chemistry and Physics最新文献_第8页

Correlating Formulation and Performance in All-Acrylic Waterborne Pressure Sensitive Adhesive Latexes 全丙烯酸水性压敏胶乳的相关配方及性能

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2025-02-20 DOI: 10.1002/macp.202400475

Julie Bratasanu, Victoria Aguilar, Leila Issoufou Alfari, Mathieu Leocmach, Benoit Mahler, Eric Drockenmuller, Elodie Bourgeat-Lami, Matteo Ciccotti, Costantino Creton, Damien Montarnal

{"title":"Correlating Formulation and Performance in All-Acrylic Waterborne Pressure Sensitive Adhesive Latexes","authors":"Julie Bratasanu, Victoria Aguilar, Leila Issoufou Alfari, Mathieu Leocmach, Benoit Mahler, Eric Drockenmuller, Elodie Bourgeat-Lami, Matteo Ciccotti, Costantino Creton, Damien Montarnal","doi":"10.1002/macp.202400475","DOIUrl":"https://doi.org/10.1002/macp.202400475","url":null,"abstract":"This work investigates the correlation between the formulation of waterborne acrylic pressure-sensitive adhesives (PSAs) and their resulting adhesive performance. A library of n-butyl acrylate-based latexes is synthesized via miniemulsion polymerization. Controlled variations in the composition of these polyacrylates – such as the inclusion of rigid comonomers, latent crosslinkers and chain transfer agents – enabled precise control over key network structures in the particles leading then to a range of physical parameters in the cast PSA films such as the glass transition temperature, entanglement and crosslink density. The viscoelastic and mechanical behaviors of the resulting networks are carefully characterized using a combination of techniques, including linear rheology, dynamic mechanical analysis, and tensile testing. These properties are then correlated with adhesive performance, as measured by probe tack and shear holding time tests. This comprehensive approach allowed for the identification of the optimal formulation balance that delivers the best compromises of adhesive performance, directly correlating these outcomes with the macromolecular design.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 8","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840898","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

Multi-Stimulus Responsive Nonconventional Fluorescent Supramolecular Polymeric Material 多刺激响应的非常规荧光超分子聚合物材料

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2025-02-20 DOI: 10.1002/macp.202400484

Wentao Hao, Chenchen Ke, Xianxiang Pan, Tengfei Qi, Wenping Wang, Wenjuan Li, Wen Yang

{"title":"Multi-Stimulus Responsive Nonconventional Fluorescent Supramolecular Polymeric Material","authors":"Wentao Hao, Chenchen Ke, Xianxiang Pan, Tengfei Qi, Wenping Wang, Wenjuan Li, Wen Yang","doi":"10.1002/macp.202400484","DOIUrl":"https://doi.org/10.1002/macp.202400484","url":null,"abstract":"Fluorescent supramolecular materials have attracted a lot of attention over the past few decades. However, those can respond to multiple stimuli are not often reported, especially for the nonconventional fluorescent materials. Here, a supramolecular material is reported that can respond to temperature/electrical heating, humidity, volatile acids/organic amines, and mechanical strain. This material is prepared by physical mixing oligomeric polyethyleneimine (o-PEI) and oligomeric polyacrylic acid (o-PAA). Although they are almost non-fluorescent, their combination produces bright fluorescence, and the emission bands shift to longer wavelengths as the amount of o-PAA increases. Calculations based on Density Functional Theory (DFT) show that there are strong noncovalent interactions between o-PEI and o-PAA, resulting in through-space conjugation and cluster-triggered emission. By studying the relationship between emission intensity, temperature, and molecular motion, the dependence of emission intensity on relaxation time is established, which will provide insight into the luminescence origin of nonconventional fluorescent materials. In addition, this material shows good self-healing ability. The luminescence, responsiveness and self-reparability are all related to the strong but reversible noncovalent bonds that link the o-PEI and o-PAA. This work not only highlights the value of supramolecular polymers, but also enriches the research of nonconventional fluorescent materials.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 8","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840899","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 of Conjugated Polymers with Controlled Terminal Structures by Direct Arylation Polycondensation and Correlation Between Terminal Structures and Emission Properties 直接芳基化缩聚法合成末端结构可控的共轭聚合物及其末端结构与发射性能的关系

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2025-02-20 DOI: 10.1002/macp.202400506

Ziwei Hu, Takeshi Yasuda, Takaki Kanbara, Junpei Kuwabara

引用次数: 0

Quercetin-Based Magnetic Porous Organic Polymers for Efficient Adsorption of Phenolic Pollutants 槲皮素基磁性多孔有机聚合物对酚类污染物的高效吸附

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2025-02-17 DOI: 10.1002/macp.202400494

Qimeng Zhu, Zewen Nie, Dongxin Yang, Lijun Sun, Liqiu Wang, Weitao Gong

{"title":"Quercetin-Based Magnetic Porous Organic Polymers for Efficient Adsorption of Phenolic Pollutants","authors":"Qimeng Zhu, Zewen Nie, Dongxin Yang, Lijun Sun, Liqiu Wang, Weitao Gong","doi":"10.1002/macp.202400494","DOIUrl":"https://doi.org/10.1002/macp.202400494","url":null,"abstract":"Phenolic wastewater poses a significant threat to public health, highlighting the urgent need for the development of effective and efficient treatment methods. Porous organic polymers, renowned for their high structural stability, large surface area, and diverse physicochemical properties, have gained widespread application in adsorption-based technologies. Therefore, the development of novel adsorbent materials remains a crucial area of scientific research. In this study, a novel porous organic polymer adsorbent is synthesized using quercetin, derived from biomass, as the key precursor. To facilitate efficient separation and reusability, magnetic Fe3O4@SiO₂ magnetic nano-particle nanoparticles (MNPs) are integrated into the porous matrix. The resulting magnetic organic porous adsorbents exhibited outstanding adsorption capacity for phenolic contaminants, along with excellent recoverability and reusability. Additionally, the adsorption mechanism is systematically investigated and verified through a series of characterization techniques.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 9","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143905204","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

A Highly Self-Healable Elastomer Based on Heterocyclic and Cage-Shaped Additives with Enhanced Mechanical Properties 基于增强机械性能的杂环和笼形添加剂的高度自愈弹性体

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2025-02-12 DOI: 10.1002/macp.202400399

Pyong Hwa Hong, Young Kyung Kim, Gyeongmin Moon, Min Seon Kim, Gyeong Rim Han, Go Eun Cho, Jong Hyuk Park, Sung Woo Hong

引用次数: 0

Zwitterionic Polycatechols for Covalent Conjugation With Bortezomib and pH-Triggered Release 两性离子型多儿茶酚与硼替佐米共价偶联及ph触发释放

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2025-02-12 DOI: 10.1002/macp.202400469

Naikuan Fu, Ao Li, Jing Zhang, Peng Zhang, Hong Zhang, Shicheng Yang, Jianhua Zhang

{"title":"Zwitterionic Polycatechols for Covalent Conjugation With Bortezomib and pH-Triggered Release","authors":"Naikuan Fu, Ao Li, Jing Zhang, Peng Zhang, Hong Zhang, Shicheng Yang, Jianhua Zhang","doi":"10.1002/macp.202400469","DOIUrl":"https://doi.org/10.1002/macp.202400469","url":null,"abstract":"The therapeutic efficacy of Bortezomib (BTZ) is severely limited by its low solubility, poor stability in vivo and nonspecific toxicity. PEGylated nanocarriers can improve drug delivery efficiency, but their applications often suffer from low drug loading, premature leakage and accelerated blood clearance phenomenon. Herein a kind of catechol-functionalized and sulfobetaine-based zwitterionic block copolymer (PGMAD-PSBMA) is prepared by RAFT copolymerization and an epoxy-amino click reaction. And then PGMAD-PSBMA is readily used to conjugate with BTZ by the formation of dynamic boronate bonds to obtain zwitterionic BTZ prodrug (PGMAD@BTZ-PSBMA) and PGMAD@BTZ-PSBMA micelles. The structure and morphology, physicochemical characteristics, drug loading, pH-triggered drug release as well as in vitro cytotoxicity of PGMAD@BTZ-PSBMA micelles are investigated in detail. The results demonstrate that PGMAD@BTZ-PSBMA micelles can not only possess high drug loading (12.9%) and stable dispersion in physiological pH condition (pH 7.4), but also respond to the tumor acid microenvironment and achieve pH-responsive BTZ release. The nanocarriers designed here readily combine the desirable functions of polycatechols for stable conjugation and acid-triggered release and polysulfobetaines for long circulation in blood, which have great potential to enhance therapeutic efficacy and reduce toxic side effects of BTZ and other boronic acid-containing drugs, such as Ixazomib and Steboronine.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 8","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840830","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

Enhancing the Performance of Dielectric Elastomer Actuators Through Chemical Modifications 通过化学改性提高介电弹性体致动器的性能

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2025-02-11 DOI: 10.1002/macp.202400447

Zhengheng Zhang, An Wang, Tianyi Chen, Tengjiao Wang, Peng Li

{"title":"Enhancing the Performance of Dielectric Elastomer Actuators Through Chemical Modifications","authors":"Zhengheng Zhang, An Wang, Tianyi Chen, Tengjiao Wang, Peng Li","doi":"10.1002/macp.202400447","DOIUrl":"https://doi.org/10.1002/macp.202400447","url":null,"abstract":"Current research on enhancing the performance of dielectric elastomer actuators (DEAs) primarily focuses on improving the properties of dielectric elastomers (DEs), including increasing the dielectric constant, reducing the elastic modulus, and minimizing dielectric losses. The commonly used composite filler method struggles to address the trade-off between high dielectric constant and low elastic modulus in DEs. In contrast, modifying the chemical structure by introducing polar groups into the DE polymer backbone can effectively increase the dielectric constant of DEs. Meanwhile, optimizing the degree of crosslinking and molecular weight can effectively reduce the elastic modulus of DEs. Currently, there remains a lack of systematic summarization regarding the chemical modification methods of DEs. This paper summarizes the actuation principles of DEs and introduces simple electromechanical modeling methods. It focuses on methods to enhance the dielectric constant of DEs through hydrosilylation, thiol-ene click reactions, and azide-alkyne click reactions, as well as methods to reduce the elastic modulus of DEs by improving the degree of crosslinking and molecular weight. Additionally, this study explores the current applications of DEAs in the fields of artificial muscles and soft robotics.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 8","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840860","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 Li Halides on the Mechanical Properties and Thermoplasticity of Poly(vinyl alcohol) Molded by Hot Pressing Li卤化物对聚乙烯醇热压成型材料力学性能和热塑性的影响

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2025-02-09 DOI: 10.1002/macp.202400382

Yusuke Taoka, Koyuru Suzuki, Masayuki Yamaguchi, Kazuaki Matsumura

{"title":"Effect of Li Halides on the Mechanical Properties and Thermoplasticity of Poly(vinyl alcohol) Molded by Hot Pressing","authors":"Yusuke Taoka, Koyuru Suzuki, Masayuki Yamaguchi, Kazuaki Matsumura","doi":"10.1002/macp.202400382","DOIUrl":"https://doi.org/10.1002/macp.202400382","url":null,"abstract":"The effect of lithium halide salts on the characteristics of poly(vinyl alcohol) (PVA) gels fabricated using the hot-press (HP) technique is investigated. The incorporation of lithium salts, such as lithium chloride (LiCl), lithium bromide (LiBr), and lithium iodide (LiI), degrades the mechanical properties of the PVA gel and decreases its crystallinity, melting point, and glass transition temperature (Tg). Additionally, the melting point of PVA is lowered, resulting in the melting of PVA below its decomposition temperature, leading to thermoplasticity. Following thermoforming, the mechanical properties of the PVA gel are minimally altered compared with those before thermoforming, potentially enhancing the processability of PVA and diversifying the range of achievable shapes. Notably, the majority of the introduced lithium salts can be eliminated by washing. Notably, the most pronounced change in the PVA gel properties is obtained with LiCl addition than with LiBr or LiI addition, suggesting that LiCl imparts superior processing characteristics to PVA gels.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 8","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840554","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

Flame Retardancy Enhancement of Styrene–Butadiene Rubber Using Sepiolite Ionogels 海泡石离子凝胶增强丁苯橡胶的阻燃性能

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2025-02-09 DOI: 10.1002/macp.202400486

Qin Qi, Kai Fang, Kai Cheng, Qingting Liu, Xudong Fu, Rong Zhang, Shengfei Hu, Jun Yang

{"title":"Flame Retardancy Enhancement of Styrene–Butadiene Rubber Using Sepiolite Ionogels","authors":"Qin Qi, Kai Fang, Kai Cheng, Qingting Liu, Xudong Fu, Rong Zhang, Shengfei Hu, Jun Yang","doi":"10.1002/macp.202400486","DOIUrl":"https://doi.org/10.1002/macp.202400486","url":null,"abstract":"When using traditional flame retardants, rubber faces the trade-off between improving the flame retardancy and maintaining mechanical properties. Herein, a novel flame retardant of sepiolite-based ionogels (IL@ASep) with both flame retardancy and reinforcement functions is developed. This work explores the flame retardancy and mechanical properties of composites made from compound rubber filled with sepiolite (Sep) using different modification methods. The results indicate that the addition of IL@ASep helps to simultaneously improve the flame retardancy and mechanical properties of compound. The materials with IL@ASep have a limiting oxygen index of 30.7% and a modulus at 100% of 4.95 MPa, whereas the samples without fillers have a limiting oxygen index of 23.5% and a modulus at 100% of 3.77 MPa. compared to the original samples, the total heat release and peak heat release decreased by 55.3% and 39.2%, respectively. Furthermore, the method of adding ionic liquid (IL) is also expected to improve the flame retardancy and mechanical properties of other polymers.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 8","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840547","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

Self-Healing Waterborne Polyurethane Elastomers Based on Multiple Reversible Bonds with Good Mechanical Performance for Composite Conductors 基于多重可逆键的自修复水性聚氨酯弹性体，具有良好的复合导体机械性能

IF 2.5 4区化学

Macromolecular Chemistry and Physics Pub Date : 2025-02-07 DOI: 10.1002/macp.202400435

Jiajia Wu, Mengqing Ren, Ming Chen, Xuanyu Liu, Tao Jin, Lili Wu

{"title":"Self-Healing Waterborne Polyurethane Elastomers Based on Multiple Reversible Bonds with Good Mechanical Performance for Composite Conductors","authors":"Jiajia Wu, Mengqing Ren, Ming Chen, Xuanyu Liu, Tao Jin, Lili Wu","doi":"10.1002/macp.202400435","DOIUrl":"https://doi.org/10.1002/macp.202400435","url":null,"abstract":"As a functional material, polyurethane elastomers have a wide range of applications in fields such as flexible wearable devices and healthcare but are prone to damage during use. As a result, they are often incorporated with self-healing properties to prolong their service life. The preparation of polyurethane elastomers with excellent mechanical and self-healing properties has become crucial to addressing this issue. In this study, a new self-healing system with excellent mechanical properties is developed by reacting butanedione oxime (DMG) and gallic acid (GA) with isocyanate (─NCO) to introduce oxime-carbamate bonds and phenol-carbamate bonds into waterborne polyurethane. The triple dynamic reversible synergistic network formed through multiple reversible covalent bonds and hydrogen bonds enhances the mechanical and self-healing properties of the waterborne polyurethane elastomers. The results demonstrate that the synthesized polyurethane elastomer films exhibit excellent mechanical properties (strength of 41.02 MPa, elongation at break of 955.9%, toughness of 112.17 MJ m−3) and self-healing properties (healing efficiency of 91.21%). In addition, the composite conductor (DG-WPU-CNTs) prepared by incorporating this polyurethane elastomer with carbon nanotubes (CNTs) exhibits excellent sensitivity, stability, and self-healing properties, providing a basis for its application in flexible wearable devices.","PeriodicalId":18054,"journal":{"name":"Macromolecular Chemistry and Physics","volume":"226 8","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840683","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