柱状侧链高分子体系的结构、黏弹性及功能应用  

Cylindrical Side-chain Polymers: Structure, Viscoelasticity and Functional Applications

作　　者：范祎宁 杨子凡 吴佳慧 赵凌 夏玮 张龙龙 王婕 陈季俞 孙铭鹤 栗佳骅 杨爽[1] 陈尔强[1] Yi-ning Fan;Zi-fan Yang;Jia-hui Wu;Ling Zhao;Wei Xia;Long-long Zhang;Jie Wang;Ji-yu Chen;Ming-he Sun;Jia-hua Li;Shuang Yang;Er-qiang Chen(Beijing National Laboratory for Molecular Sciences,Key Laboratory of Polymer Chemistry and Physics of Ministry of Education,Center for Soft Mater Science and Engineering,College of Chemistry and Molecular Engineering,Peking University,Beijing 100871)

机构地区：[1]北京分子科学国家研究中心、高分子化学与物理教育部重点实验室、软物质科学与工程中心、北京大学化学与分子工程学院,北京100871

出　　处：《高分子学报》2023年第10期1468-1485,共18页Acta Polymerica Sinica

基　　金：国家自然科学基金(基金号51921002,21634001)资助项目.

摘　　要：近年来,具有柱状结构的侧链高分子体系,如瓶刷状聚合物等,因其特殊的超软、超弹性、快速应变硬化等有趣的黏弹性而受到学术界高度重视.本综述对相关研究进展做了一些梳理和总结.主要介绍了瓶刷链、树枝化聚合物、甲壳型液晶高分子等几类经典的以“单链超分子柱”为特征的侧链高分子的结构和线性黏弹性,并以楔形侧链高分子为例介绍了“多链超分子柱”的性质.在简述柱状侧链高分子体系功能应用方面的探索之后,也扼要讨论了研究中存在的问题与挑战.虽然目前柱状侧链高分子的缠结及微相分离带来的复杂松弛行为的物理机制还不十分明晰,但对于这类高分子的深入研究无疑将为新型黏弹材料的设计和制造提供新的思路和坚实的理论基础.Due to their unique supersoft,superelastic,quick strain hardening,and other fascinating viscoelastic features,cylindrical side-chain polymer systems,such as bottlebrush polymers,have gained significant interest recently.In this mini-review,we intend to summarize the relevant research progresses.Several typical side-chain polymers that demonstrate the structure of the single-chain supramolecular columns,including bottlebrushes,dendronized polymers and mesogen-jacketed liquid crystalline polymers,are introduced along with their linear viscoelasticity.Furthermore,the features of multi-chain supramolecular columns are illustrated by using the self-assembly of wedge-shaped side-chain polymers as the example.After a brief overview of the functional applications of cylindrical side-chain polymer systems,we give some comments on the obstacles and challenges in this research field.Even though the physical mechanisms underlying the complex relaxation behavior of cylindrical side-chain polymers caused by entanglement and microphase separation are still not fully understood,research on these polymers will offer fresh perspectives and a theoretical foundation for creating brand-new viscoelastic materials.

关 键 词：侧链高分子 柱状结构 黏弹性 缠结 逐次松弛 

分 类 号：O631.1[理学—高分子化学]