Article
Chemistry, Multidisciplinary
Nicolo Manfredini, Manuel Merigo, Juri Ilare, Mattia Sponchioni, Davide Moscatelli
Summary: In this work, stable limonene-in-water Pickering emulsions were successfully produced by synthesizing biodegradable nanoparticles through a combination of polymerization techniques. The size of the oil phase and wetting properties of limonene could be strictly controlled by tuning the physico-chemical properties of the nanoparticles. The adoption of thermo-responsive polymer chains within the emulsifiers allowed on-demand destabilization of the emulsions for selective dispensing of limonene by increasing the temperature.
Article
Polymer Science
Hang Xiao, Quan-Xi Shi, Min Su, Xiao-Li Sun, Hongli Bao, Wen-Ming Wan
Summary: This study demonstrates a one-pot strategy for the molecular design of stimuli-responsive opposite emission/absorption polymer material with unique properties. The nontraditional intrinsic luminescence in the visible region is achieved through reversible addition-fragmentation chain transfer polymerization-induced emission (PIE) of a specific moiety. The opposite emission/absorption properties are derived from the carbocation-quinoid mechanism, enabling fluorescence encryption capability. This work provides a proof of concept for a novel polymer material that might inspire different fields.
Article
Polymer Science
Rang Chen, Xue Jiang, Guolin Lu, Wenbin Liu, Weize Jin, Guojian Tian, Xiaoyu Huang
Summary: Graft copolymers have versatile applications in material science due to their tunable structure and diverse morphologies. This study successfully synthesized amphiphilic graft copolymers bearing pyridine-containing hydrophilic backbones, which exhibited dual temperature- and pH-sensitive behavior, suggesting their potential as polymer-drug nanocarriers.
Article
Chemistry, Multidisciplinary
Anne-Catherine Lehnen, Sergio Kogikoski Jr, Till Stensitzki, Ahmad AlSawaf, Alain M. Bapolisi, Martin Wolff, Jonas De Breuck, Henrike M. Mueller-Werkmeister, Salvatore Chiantia, Ilko Bald, Meike N. Leiske, Matthias Hartlieb
Summary: This study focuses on the importance of structural control in antimicrobial polymers and reveals that polymers with high side chain mobility and increased hydrophilicity exhibit stronger antimicrobial activity. The results indicate that the structure of antimicrobial bottle brush copolymers influences their biological activity and physicochemical behavior.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Polymer Science
Panagiotis G. Falireas, Vincent Ladmiral, Bruno Ameduri
Summary: Fluorinated dual-responsive block terpolymers were synthesized via sequential RAFT polymerization, exhibiting unique solution properties that respond to changes in pH and temperature.
Article
Polymer Science
Oleg Lebedev, Alexandra Grigoreva, Aleksandr Chicharov, Alexey Markin, Sergey Zaitsev
Summary: The copolymerization of HFIPA and OFPA with NVP was studied in the presence of BTC and polymeric RAFT agents based on fluoroacrylates. The copolymerization process proceeds in a control mode, confirmed by the first order of reaction by monomer and SEC curves. The influence of subphase composition and pH on the surface properties of copolymers was investigated, and the morphology of LB films of various compositions was studied by atomic force microscopy.
JOURNAL OF POLYMER RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Nicolo Manfredini, Mattia Sponchioni, Davide Moscatelli
Summary: Thermo-responsive polymeric surfactants were synthesized to promote NP formation during eFRP and facilitate bulk polymer recovery by increasing temperature.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Polymer Science
Nicolo Manfredini, Marco Tomasoni, Mattia Sponchioni, Davide Moscatelli
Summary: Thermo-responsive nanoparticles are receiving attention for their dynamic behavior and wide range of applications. This study synthesized nanoparticles with varying properties and found that longer polymer chain blocks favor gel formation, while high HLB promotes reversibility.
Article
Polymer Science
Jiasheng Pan, Xin Wen, Mu Wang, Jun Li, Xiangyu Li, Anchao Feng, Liqun Zhang, San H. Thang
Summary: This study successfully constructed a novel stimuli-responsive microgel by introducing complementary interactions between natural nucleobases, and demonstrated shrinkage and assembly behavior under different water content and thermo pH-stimulated conditions.
MACROMOLECULAR RAPID COMMUNICATIONS
(2022)
Article
Engineering, Chemical
Hortensia Maldonado-Textle, Enrique Javier Jimenez-Regalado, Claude St Thomas
Summary: This study reports the synthesis of thermo-associative water soluble multiblock copolymers and investigates the effect of thermo-responsive blocks on the thickening behavior of aqueous polymer solutions.
POLYMER ENGINEERING AND SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Shannon M. North, Steven P. Armes
Summary: In this study, zwitterionic diblock copolymers were successfully synthesized using RAFT polymerization in a wholly aqueous environment, with the isoelectric point in aqueous solution tunable by varying monomer proportions. These copolymers show promise for potential applications.
Article
Biochemistry & Molecular Biology
Elena Yu. Kozhunova, Anna V. Plutalova, Andrey V. Sybachin, Alexander V. Chertovich, Elena V. Chernikova
Summary: This study investigated the double stimuli-responsive properties of PNIPA and PVIM block copolymers in aqueous solutions for the first time. The synthesis of two different block copolymers was performed using RAFT polymerization. The conformational behavior and self-assembly ability of the polymers were found to depend on the location of hydrophobic groups derived from the RAFT agent within the chain, as well as the length and charge of the PVIM block.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Polymer Science
Ankita Mandal, Andreas F. M. Kilbinger
Summary: Star polymers have attracted attention due to their distinctive properties. A one-pot synthesis of narrowly dispersed and degradable homoarm and miktoarm star polymers exploiting the catalytic living ring-opening metathesis polymerization mechanism was presented. Various complex polymeric architectures were synthesized using appropriate chain transfer agents.
Article
Biochemistry & Molecular Biology
Alvaro Leonel Robles Grana, Hortensia Maldonado-Textle, Jose Roman Torres-Lubian, Claude St Thomas, Ramon Diaz de Leon, Jose Luis Olivares-Romero, Luis Valencia, Francisco Javier Enriquez-Medrano
Summary: This study demonstrates the efficient control of polymerization of methacrylic monomers using a symmetrical trithiocarbonate chain transfer agent in the RAFT process. However, an atypical behavior is observed in the polymerization of MMA, where high initiator/CTA molar ratios are required to achieve predictable molecular weights without affecting dispersity.
Article
Polymer Science
Dimitrios Selianitis, Stergios Pispas
Summary: This work introduces a series of novel multi-responsive hyperbranched copolymers which self-organize in aqueous media. The copolymers, prepared by RAFT polymerization, exhibit responsiveness to changes in solution temperature and pH, and are able to encapsulate hydrophobic drugs like curcumin. These hyperbranched copolymers show potential as candidates for drug delivery and bio-imaging applications, as they demonstrate stability in the presence of serum proteins.
Article
Polymer Science
Quanlong Li, Xin He, Yongliang Cui, Pengfei Shi, Shentong Li, Wangqing Zhang
Article
Polymer Science
Quan-long Li, Lei Li, Hong-song Wang, Rui Wang, Wei Wang, Yong-jing Jiang, Qian Tian, Jia-ping Liu
CHINESE JOURNAL OF POLYMER SCIENCE
(2017)
Review
Nanoscience & Nanotechnology
Quanlong Li, Lei Li, Qian Tian, Jianxiong Xu, Jiaping Liu
NANOSCIENCE AND NANOTECHNOLOGY LETTERS
(2017)
Article
Polymer Science
Chengqiang Gao, Quanlong Li, Yongliang Cui, Fei Huo, Shentong Li, Yang Su, Wangqing Zhang
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
(2014)
Article
Polymer Science
Quanlong Li, Fei Huo, Yongliang Cui, Chengqiang Gao, Shentong Li, Wangqing Zhang
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
(2014)
Article
Polymer Science
Fei Huo, Shentong Li, Xin He, Sayyar Ali Shah, Quanlong Li, Wangqing Zhang
Article
Polymer Science
Pengfei Shi, Quanlong Li, Xin He, Shentong Li, Pingchuan Sun, Wangqing Zhang
Article
Polymer Science
Fei Huo, Shentong Li, Quanlong Li, Yaqing Qu, Wangqing Zhang
Article
Polymer Science
Quanlong Li, Xin Xiao, Xu Zhang, Wangqing Zhang
Article
Polymer Science
Shentong Li, Fei Huo, Quanlong Li, Chengqiang Gao, Yang Su, Wangqing Zhang
Article
Polymer Science
Yaqing Qu, Fei Huo, Quanlong Li, Xin He, Shentong Li, Wangqing Zhang
Article
Polymer Science
Xin He, Quanlong Li, Pengfei Shi, Yongliang Cui, Shentong Li, Wangqing Zhang
Article
Polymer Science
Quanlong Li, Chengqiang Gao, Shentong Li, Fei Huo, Wangqing Zhang
Article
Polymer Science
Shentong Li, Xin He, Quanlong Li, Pengfei Shi, Wangqing Zhang
Article
Polymer Science
Yuanzhang Jiang, Xuyi Wang, Yanting Han, Dakai Gong, Yingchun Gu, Lin Tan
Summary: In this study, FeCl3 and poly(acrylic acid) (PAA) were doped into waterborne polyurethanes (WPUs) to create multifunctional materials with self-healing and antimicrobial properties. WPU/Fe/PAA-5.5, containing 5.5 wt % PAA, exhibited excellent mechanical properties, strong self-healing capabilities, and an impressive antimicrobial rate of over 90%. These supramolecular films were also highly recyclable through hot-pressing.
Article
Polymer Science
Longyu Tian, Min Wang, Guangming Liao, Baoliang Liu, Sujuan Zhang, Yucheng Sun, Zhen Meng, Jintao Zhang, Zaijun Lu
Summary: Two kinds of benzoxazine monomers were synthesized and used to prepare polybenzoxazine anion exchange membranes (AEMs) with quaternary ammonium functionalization. The LQPBZ AEM exhibited better ion conductivity and alkaline stability.
Article
Polymer Science
Claire A. Lemarchand
Summary: This study investigates the shock behavior of three different polymers through molecular dynamics simulations. The results reveal specificities in the shock behavior of polymers, including deviations from the linear relation between shock velocity and particle velocity, as well as differences in shear stress relaxation behind the shock front. It is found that the deviation of the Hugoniot locus is related to the change in the relative contribution of bonding and non-bonding potential energies, while polymers with higher glass transition temperatures exhibit slower shear stress relaxation.
Article
Polymer Science
Zengquan Liu, Xiaochun Yin, He Zhang, Shuo Gao, Qinglin Kuang, Yanhong Feng
Summary: A powder solid-state extension (PSSE) technology was proposed to address the high melt viscosity issue of UHMWPE. By uniaxial extension and sintering in the solid state, a highly self-reinforced material was prepared. X-ray diffraction and scattering techniques were used to study the structural evolution during the PSSE process, and a solid-phase induced transformation model was established.
Article
Polymer Science
Zhike Li, Anyu Luo, Rui Zhou, Xin Li, Haiyan Li
Summary: A novel high temperature resistance IL@SiO2 nanocapsules were successfully prepared and their friction and wear properties in PA6 composites were studied. The addition of IL@SiO2 nanocapsules reduced the friction coefficient and wear rate without affecting the mechanical properties of PA6. The synergy between the IL core and SiO2 wall in the nanocapsules improved the self-lubricating performance of the PA6 composites.
Article
Polymer Science
Xin Liu, Xuhong Guo, Qi Liao
Summary: In this study, an algorithm for accurately estimating viscosity is developed using molecular dynamics simulations and the Green-Kubo formula. This algorithm can be applied to complex systems with long correlations, such as macromolecular and biological simulation systems.
Article
Polymer Science
Hao Pu, Yun-Lei Hou, Jing -Zhou Chen, Dong -Lin Zhao
Summary: The use of modified graphene improves the interfacial adherence of carbon fibers to epoxy resin, resulting in enhanced interfacial and bending properties of CF and matrix in CF/EP composites, as well as increased interlaminar shear strength and flexural strength.
Article
Polymer Science
Wei-Chung Ke, Jin-Wei Lin, Manohar Reddy Busireddy, Yueh-Hsing Lee, Jiun-Tai Chen, Chain-Shu Hsu
Summary: This study introduces a crosslinkable monomer, TAIC, to synthesize three crosslinked polyimide films, which exhibit improved thermal, mechanical, and dielectric properties. The introduction of TAIC enhances the tensile strength, reduces the dielectric constant and dielectric loss, and decreases the coefficient of thermal expansion of the polyimide films.
Article
Polymer Science
Alex Kwasi Kumi, Ruiling Fan, Ye Chen, Yumei Zhang
Summary: The difference in leaching of amylopectin from cellulose/amylopectin/1-butyl-3-methylimidazolium chloride ([Bmim][Cl]) blends during regeneration in water and aqueous ethanol has been studied. Molecular dynamics simulations showed that the dissolution and regeneration mechanisms of amylopectin in [Bmim][Cl] are similar to cellulose in ionic liquids. Water regeneration leads to weak electrostatic interactions, resulting in high leaching of amylopectin. In contrast, ethanol-water interactions enhance electrostatic interactions among amylopectin chains, limiting amylopectin leaching in aqueous ethanol.
Article
Polymer Science
Xi Zeng, Junwei Zhou, Junbiao Peng, Chunsheng Zhang, Danling Wang, Yihu Song, Qiang Zheng
Summary: This study utilizes an oligomer deep eutectic solvent (DES) based on polyethylene glycol to regulate the vulcanization kinetics of rubber. The results show that the DES can accelerate vulcanization at low temperatures without affecting the crosslinking density and Mullins effect.
Article
Polymer Science
Qianqian Yue, Yongfei Peng, Xingjian Liu, Aihua He, Huarong Nie
Summary: The addition of metal deactivators can effectively suppress the aging of TBIR, prolong its lifespan, and have no negative effects on its physical and processing properties. These research findings are of great importance for improving the stability and aging resistance of polymers.
Article
Polymer Science
J. Gomez-Caturla, J. Ivorra-Martinez, R. Tejada-Oliveros, V Moreno, D. Garcia-Garcia, R. Balart
Summary: This work focuses on the development of environmentally friendly PLA formulations by using different esters derived from geraniol as plasticizers. The results show that these esters have good compatibility with PLA, and they can effectively enhance the elongation and plasticity of PLA, reduce its glass transition temperature, and slightly improve its water absorption capabilities.
Article
Polymer Science
Dandan Li, Zhaohui Lu, Zhao Ke, Ke Xu, Fengna Dai, Youhai Yu, Guangtao Qian, Chunhai Chen
Summary: In this study, cross-linked PI aerogel membranes with low dielectric constant and high moisture resistance were prepared by co-polymerization and scraping coating technology. The incorporation of fluorinated blocks and benzimidazole ring structures resulted in novel PI aerogel membranes with fascinating dielectric properties and outstanding moisture resistance.
Article
Polymer Science
Zhaoyang Chu, Qing Zhang, Haihua Luo, Han Zhou, Fapei Zhang, Wei Chen, Wenhua Zhang
Summary: Multi-physical fields solution processing strategy is a universal and facile method for preparing various conjugated polymer films and high-performance devices. In this study, we employed a combined microfluidic flow and ultrasonication strategy (FU) for processing CP solutions, and found a pronounced synergetic effect in promoting the pre-ordering of chains in solution. The conformation order and anisotropy of the solution were revealed through various characterizations. A non-classical nucleation model for polymer crystallization in non-equilibrium solution processing was confirmed. The roles of microfluidic flow and ultrasonication in chain aggregation and crystallization were addressed through multi-physical simulations. Compared to pristine solutions, the FU strategy showed improved solution anisotropy and crystallization kinetics, resulting in higher crystallinity in films and increased mobilities in OFET devices. The FU processing strategy provides a universal approach for regulating chain conformation and aggregation in conjugated polymer solutions.
