高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

酶促开环聚合和原子转移自由基聚合制备新型H型嵌段共聚物

王迪1, 张宝1, 李亚鹏1, 孙景辉2   

    1. 吉林大学化学学院麦克德尔料德实验室, 长春 130012;
    2. 吉林大学第一临床医院, 长春 130023
  • 收稿日期:2007-11-12 修回日期:1900-01-01 出版日期:2008-07-10 发布日期:2008-07-10
  • 通讯作者: 李亚鹏

Synthesis of Novel H-shaped Block Copolymer by the Combination of Enzymatic-Promoting Ring-opening Polymerization and ATRP

WANG Di1, ZHANG Bao1, LI Ya-Peng1*, SUN Jing-Hui2   

    1. AlanG. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun 130012, China;
    2. The First Hospital of Jilin University, Changchun 130023, China
  • Received:2007-11-12 Revised:1900-01-01 Online:2008-07-10 Published:2008-07-10
  • Contact: LI Ya-Peng

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被引次数

16

摘要： 在生物酶催化剂Novozyme-435的作用下, 乙二醇引发己内酯(ε-CL)酶促开环聚合, 再用三乙胺作催化剂, 将PCL端羟基与2,2-二氯代乙酰氯反应, 生成四官能度大分子引发剂, 引发甲基丙烯酸环氧丙酯(GMA)的原子转移自由基聚合(ATRP), 合成了H型三嵌段共聚物(PGMA)2-b-PCL-b-(PGMA)2. 嵌段共聚物的结构通过核磁共振和凝胶渗透色谱(GPC)得到了确证, 其多分散性为1.32, 分子量为32000. 通过差热扫描量热法对嵌段共聚物的热性能进行了研究.

关键词: H型嵌段共聚物, 原子转移自由基聚合, 酶促开环聚合, 甲基丙烯酸环氧丙酯

Abstract: Enzymatic-promoting ring-opening polymerization(ROP) of ε-caprolactone(ε-CL) was performed in the presence of biocatalyst Novozyme-435 and initiator ethylene glycol. The resulting polymer was esterified with 2,2-Dichloro acetyl chloride(DCAC) to obtain macroinitiator, which can be used in the following ATRP of the glycidyl methacrylate(GMA) using CuCl/2,2’-bipyridine as the catalyst system to synthesize the well-defined H-shaped block copolymer(PGMA)2-b-PCL-b-(PGMA)2. The structure of the polymer was characterized via GPC and 1H NMR analysis. The polydisperisty of the resulting H-shaped block copolymer is 1.32, Mn=32000. The thermal properties of block copolymer was characterized by differential scanning calorimetry.

Key words: H-shaped block copolymer, Atom transfer radical polymerization, Enzymatic-promoting ring-opening polymerization, Glycidyl methacrylate(GMA)

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