活性/可控自由基聚合在摩擦学中的应用和研究进展  

Applications and Research Progress of Living/Controlled Free Radical Polymerization in Tribology

作　　者：刘汉峰 杨琳杰 张建强[2] 王廷梅[1] 王齐华[1] 张耀明[1] LIU Han-feng;YANG Lin-jie;ZHANG Jian-qiang;WANG Ting-mei;WANG Qi-hua;ZHANG Yao-ming(Key Laboratory of Science and Technology on Wear and Protection of Materials,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China;School of Petrochemical Technology,Lanzhou University of Technology,Lanzhou 730050,China)

机构地区：[1]中国科学院兰州化学物理研究所,材料磨损与防护重点实验室,兰州730000 [2]兰州理工大学石油化工学院,兰州730050

出　　处：《高分子通报》2024年第9期1172-1189,共18页Polymer Bulletin

基　　金：中国科学院B类先导专项(项目号XDB0470303);中国科学院兰州化学物理研究所一三五重点培育项目(项目号ZYFZFX-7);国家自然科学基金(基金号52105223)。

摘　　要：活性/可控自由基聚合(CRP)是一种灵活且可控的聚合技术,通过CRP可得到具有精确分子量、结构和性质的聚合物,其在材料科学和化学工程等领域中具有广泛的应用。本文以CRP为主要手段获得的聚合物在摩擦学领域的应用为出发点,综述了可控聚合表面改性的摩擦学研究,聚合物润滑添加剂的合成及它们对润滑油黏度和性能的改善。文中首先描述了聚合物刷的合成方法和在不同维度表面改性时的作用和优势,总结了其独特的润滑机理,并介绍了盐、pH、光等刺激响应型聚合物刷研究现状。其次,分析了CRP技术合成的具有三维结构的胶束、支化聚合物等聚合物润滑添加剂对润滑油黏度的改性和减摩抗磨性能的提升,并总结了它们作为润滑添加剂在润滑方面的优势和润滑机理。Living/controlled free radical polymerization(CRP)stands out as a versatile and highly controllable polymerization technique,facilitating the precise tuning of molecular weights,structures,and properties of polymers throughout the polymerization process.This methodology finds extensive application across diverse domains such as materials science and chemical engineering.This review delves into the tribological implications of polymers primarily synthesized via CRP.It provides a comprehensive examination of tribology studies related to controlled polymerization surface modifications and the synthesis of polymer lubrication additives.It also discusses their subsequent effects on lubricant viscosity and performance enhancements.Firstly,the paper describes the synthesis method of polymer brushes and their roles and advantages in surface modification across various dimensions.It summarizes their unique lubrication mechanism and introduces the current research status on stimulus-responsive polymer brushes,including responses to salt,pH,and light.Secondly,we analyzed the modification of lubricant viscosity and the enhancement of friction reduction and anti-wear properties of polymeric lubricant additives with a three-dimensional structure,such as micelles and branched polymers synthesized by CRP technology.The advantages of using them as lubrication additives and their lubrication mechanisms are summarized.

关 键 词：活性/可控自由基聚合 摩擦学 表面改性 聚合物刷 聚合物润滑添加剂 

分 类 号：O631.5[理学—高分子化学] TE624.82[理学—化学]