化学学报 ›› 2007, Vol. 65 ›› Issue (19): 2144-2150. 上一篇    下一篇

研究论文

窄分布聚丙烯酸-g-聚甲基丙烯酸酯接枝共聚物的合成

彭丹*,1,2, 李垚功2, 张晓环2, 陆国林2, 冯纯2, 黄晓宇*,2   

  1. (1山东省科学院新材料研究所 济南 250014)
    (2中国科学院上海有机化学研究所 上海 200032)
  • 投稿日期:2007-04-13 修回日期:2007-04-30 发布日期:2007-10-14
  • 通讯作者: 彭丹, 黄晓宇

Synthesis of Poly(acrylic acid)-g-poly(alkyl methacrylate) Graft Copolymers with Narrow Molecular Weight Distributions

PENG Dan*,1,2; LI Yao-Gong2; ZHANG Xiao-Huan2; LU Guo-Lin2; FENG Chun2; HUANG Xiao-Yu*,2   

  1. (1 New Material Research Institute of Shandong Academy of Science, Jinan 250014)
    (2 Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032)
  • Received:2007-04-13 Revised:2007-04-30 Published:2007-10-14
  • Contact: PENG Dan; HUANG Xiao-Yu

利用合成的一种新型原子转移自由基聚合大分子引发剂和从主干接枝的方法制备了窄分布的两亲性接枝共聚物聚丙烯酸-g-聚甲基丙烯酸酯, 并对其结构进行表征. 产物主链和侧链的分子量可分别通过调整单体与引发剂的投料比和反应时间进行控制, 结构规整, 侧链单体适用范围广. 该合成方法不仅推动了接枝共聚物合成研究的进展, 其产物更为两亲性接枝共聚物自组装行为的研究提供了很好的研究对象.

关键词: 原子转移自由基聚合, 两亲性, 接枝共聚物, 大分子引发剂

Poly(acrylic acid)-g-poly(alkyl methacrylate) amphiphilic graft copolymers with narrow molecular weight distributions were synthesized by atom transfer radical polymerization (ATRP) and grafting-from main-chain technique. The well-defined products were characterized by FT-IR, 1H NMR and gel permeation chromatography (GPC). The molecular weight of a main chain could be tuned by the variation of the feed ratios, while the tuning of the molecular weights of side chains could be conducted by controlling the reaction time. This is a significant progress for the synthesis of amphiphilic graft copolymers because the side chains can be extended to other polymer blocks. Moreover, the study of self-assembly behavior can benefit formation of the well-defined structures of the products.

Key words: atom transfer radical polymerization, amphiphilic, graft copolymer, macroinitiator