RAFT法合成PDMAEMA-b-PLMA嵌段共聚物及其作为润滑油添加剂的性能研究  

The synthesis of PDMAEMA-b-PLMA block copolymer and the in vestigation of its behavior as lubricant additive

作　　者：李晓芸 薛皓丹 王家一 葛轶岑 牟自豪 LI Xiao-yun;XUE Hao-dan;WANG Jia-yi;GE Yi-cen;MOU Zi-hao(College of Materials,Chemistry,and Chemical Engineering,Chengdu University of Technology,Chengdu,Sichuan,610059,China;Institute for Advanced Study,Chengdu University,Chengdu,Sichuan,610106,China)

机构地区：[1]成都理工大学材料与化学化工学院,四川成都.610059 [2]成都大学高等研究院,四川成都610106

出　　处：《化学研究与应用》2023年第12期2959-2966,共8页Chemical Research and Application

基　　金：四川省大学生创新创业训练计划项目(S202110616007)资助;国家自然科学基金项目(52105173,22001023)资助;四川省自然科学基金项目(2022NSFSC0346,2022NSFSC1186)资助。

摘　　要：基于可逆加成-断裂链转移聚合法(RAFT),设计并合成了一系列具有不同链段长度比与低多分散性的聚甲基丙烯酸-N,N-二甲氨基乙基酯-b-聚甲基丙烯酸月桂酯(PDMAEMA-b-PLMA)嵌段共聚物。通过核磁共振氢谱(^(1)HNMR)、凝胶渗透色谱(GPC)、动态光散射(DLS)和透射电子显微镜(TEM)对聚合物及其自组装结构进行表征测试,并利用往复摩擦实验考察添加该聚合物对液体石蜡的减摩润滑和抗磨分散性能影响。A series of poly(2-(dimethylamino)ethyl methacrylate)-b-poly(lauryl methacrylate)diblock copolymer bearing different chain length and low dispersity was synthesized via reversible addition-fragmentation chain-transfer polymerization.The copolymers and the corresponding self-assembly nanostructures were characterized by ^(1)H NMR,GPC,DLS,and TEM,respectively.High speed reciprocating friction tests were also utilized to investigate the performance of copolymer on lubrication behavior as lubricant additive in paraffin oil.

关 键 词：可逆加成-断裂链转移聚合 嵌段共聚物 聚甲基丙烯酸-N N-二甲氨基乙基酯 聚甲基丙烯酸月桂酯 润滑剂 

分 类 号：O632.51[理学—高分子化学]