Force-Induced Enhancement of Hydrophilicity of Individual Polymethyl Methacrylate Chain  

作　　者：Wenping Kang Yu Bao Hailong Wang Nanpu Cao Shuxun Cui 

机构地区：[1]School of Chemistry,College of Life Science and Engineering,Key Lab of Advanced Technologies of Materials(Ministry of Education),Southwest Jiaotong University,Chengdu,Sichuan610031,China

出　　处：《Chinese Journal of Chemistry》2023年第18期2289-2295,共7页中国化学（英文版）

基　　金：supported by the National Natural Science Foundation of China(22273079);the Natural Science Foundation of Sichuan Province(2022NSFSC1204);the Central Government Guiding Local Science and Technology Development Project of Sichuan Province(2022ZYD0043).

摘　　要：Comprehensive Summary,Polymethyl methacrylate(PMMA)has been widely applied in diverse fields such as medicine and engineering materials due to its good hydrophilicity and biocompatibility.However,another term for PMMA,Plexiglas,means that it is water insoluble.These features of PMMA are valuable but seem paradoxical.To explore the underlying mechanism of the paradoxical properties,the interactions between PMMA and water have been investigated by atomic force microscopy(AFM)-based single-molecule force spectroscopy(SMFS).The single-chain elasticity of PMMA obtained in aqueous solutions is significantly different from that obtained in non-aqueous environments,implying that PMMA can form hydrogen bonds with water molecules.

关 键 词：Polymethyl methacrylate Single-molecule studies Hydrogen bonding HYDROPHILICITY Solvent effects 

分 类 号：O63[理学—高分子化学]