Laboratoire de Chimie Catalyse Polymères et Procédés (C2P2), Université de Lyon, Université Lyon 1, CPE Lyon, CNRS UMR 5265, Equipe LCPP Bat 308F, 43 Bd du 11 Novembre 1918, F-69616 Villeurbanne, France.
Macromol Rapid Commun. 2011 Aug 17;32(16):1270-6. doi: 10.1002/marc.201100240. Epub 2011 Jun 30.
The syntheses of amphiphilic block copolymers are successfully performed in water by chain extension of hydrophilic macromolecules with styrene at 80 °C. The employed strategy is a one-pot procedure in which poly(acrylic acid), poly(methacrylic acid) or poly(methacrylic acid-co-poly(ethylene oxide) methyl ether methacrylate) macroRAFTs are first formed in water using 4-cyano-4-thiothiopropylsulfanyl pentanoic acid (CTPPA) as a chain transfer agent. The resulting macroRAFTs are then directly used without further purification for the RAFT polymerization of styrene in water in the same reactor. This simple and straightforward strategy leads to a very good control of the resulting amphiphilic block copolymers.
两亲嵌段共聚物的合成在水中通过在 80°C 下用苯乙烯对亲水性大分子进行链延伸成功进行。所采用的策略是一种一锅法，其中使用 4-氰基-4-巯基硫代戊酸（CTPPA）作为链转移剂，首先在水中形成聚（丙烯酸）、聚（甲基丙烯酸）或聚（甲基丙烯酸-co-聚（氧化乙烯）甲醚甲基丙烯酸酯）大分子 RAFT。然后，所得大分子 RAFT 无需进一步纯化，直接用于同一反应器中在水中进行苯乙烯的 RAFT 聚合。这种简单直接的策略可实现对所得两亲嵌段共聚物的很好的控制。
