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

新型水溶性共轭嵌段含糖聚合物的合成与表征

王芸芸1, 范曲立2, 王培1, 马谆1, 汪联辉1, 黄维2   

    1. 复旦大学先进材料实验室, 上海 200433;
    2. 南京邮电大学信息材料与纳米技术研究院, 南京 210003
  • 收稿日期:2007-01-22 修回日期:1900-01-01 出版日期:2007-07-10 发布日期:2007-07-10
  • 通讯作者: 汪联辉

Synthesis and Characterization of a Novel Water-soluble Conjugated-block Copolymer Containing Carbohydrate

WANG Yun-Yun1, FAN Qu-Li2, WANG Pei1, MA Zhun1, WANG Lian-Hui1*, HUANG Wei2*   

    1. Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China;
    2. Institute of Information Material and Nano Technology, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
  • Received:2007-01-22 Revised:1900-01-01 Online:2007-07-10 Published:2007-07-10
  • Contact: WANG Lian-Hui

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被引次数

13

摘要：

以两端溴化的聚9,9-二己基芴作为大分子引发剂, 6-O-甲基丙烯酰基-1,2∶3,4-二-O-异亚丙基-D-吡喃型半乳糖(6-O-Methacryloyl-1,2∶3,4-di-O-isopropylidene-D-galactopyranose, MaIpGa)为单体, 氯化亚铜/1,1,4,7,10,10-六甲基三乙基四胺为催化剂, 通过原子转移自由基聚合(ATRP), 合成了一种新型的具有良好光学性能的三嵌段共聚物聚甲基丙烯酸羟基保护半乳糖酯-聚芴-聚甲基丙烯酸羟基保护半乳糖酯(PMaIpGa-PF-PMaIpGa). 在酸性条件下进一步水解, 得到水溶性的聚甲基丙烯酸半乳糖酯-聚芴-聚甲基丙烯酸半乳糖酯(PMaGa-PF-PMaGa)三嵌段聚合物, 其结构和分子量(分布)通过核磁共振、红外光谱和凝胶渗透色谱(GPC)确证, 并研究了其紫外-可见和荧光光谱特性.

关键词: 共轭嵌段聚合物, 含糖聚合物, 聚芴, 原子转移自由基聚合, 水溶性

Abstract:

A novel well-defined amphiphilic copolymer was prepared via atom transfer radical polymerization(ATRP) with 2-bromoisobutyrate-capped poly(9,9-dihexylfluorene) as macroinitiator and CuCl/HMTETA(1,1,4,7,10,10-hexamethyltriethylenetetramine) as the catalyst. The molecular weight and molecular distribution were well controlled, implying well-defined block structure of the prepared block copolymer. The chemical structure of the copolymer of PMaIpGa-PF-PMaIpGa was confirmed via 1H NMR, FTIR and GPC. The copolymer could be successfully deprotected, and the final conjugated-carbohydrate block was found to be soluble in water. UV and PL spectra were also studied.

Key words: Conjugated block polymer, Carbohydrate-containing polymer, Polyfluorene, ATRP, Water-solubility

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