AM/AMPS共聚物光化学改性

doi:10.7517/j.issn.1674-0475.2002.04.247

影像科学与光化学 ›› 2002, Vol. 20 ›› Issue (4): 247-252.DOI: 10.7517/j.issn.1674-0475.2002.04.247

AM/AMPS共聚物光化学改性

李妙贞, 覃耀进, 常志英, 王尔鑑

中国科学院理化技术研究所, 北京, 100101

收稿日期:2001-11-07 修回日期:2002-01-23 出版日期:2002-07-23 发布日期:2002-07-23
通讯作者: 李妙贞(1940- ),女,研究员,主要从事有机和高分子功能材料的研究,通讯联系人.
基金资助:
《国家重点基础研究发展规划》项目(G1999022503)

PHOTOCHEMICAL MODIFICATION OF AM/AMPS COPOLYMER

LI Miao-zhen, QIN Yao-jin, CHANG Zhi-ying, WANG Er-jan

Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100101, P. R. China

Received:2001-11-07 Revised:2002-01-23 Online:2002-07-23 Published:2002-07-23

摘要/Abstract

摘要： 水溶性高分子AM/AMPS系由丙烯酰胺(AM)和2-丙烯酰胺基-2-甲基丙磺酸(AMPS)组成.本文应用光化学方法对AM/AMPS共聚物进行改性,得到活性可聚合产物.应用这种方法,在高分子链上生成的过氧化物含量随UV光照时间有明显变化,照射5-10 min过氧化物含量最高.值得指出,较高的过氧化物生成量仅在采用二苯酮作为光敏剂和保持低温的条件下才能得到.这种活性改性AM/AMPS共聚物,可用光聚合或热聚合方法引发不同烯类单体共聚合,得到不同用途的接枝/交联共聚物产品.

关键词: 光化学改性, AM/AMPS共聚物, 过氧化物, 接枝/交联共聚物

Abstract: Water soluble AM/AMPS copolymer composed of acrylamide(AM)and 2-acrylamido-2-methyl-propanesulfate(AMPS)was modified to obtain a reactive polymerizable product by photochemical process.The content of active peroxide group formed in the polymer chain varied obviously with UV irradiation time and a maximum appeared at irradiation time of 5-10 min.The high yield of peroxide formed was only obtained in the presence of benzophenone as photosensitizer at low temperature.Sequentially,the photochemically modified reactive AM/AMPS polymer is sufficient to initiate copolymerization with different vinyl monomers by photo chemical or thermal polymerization process, giving useful grafting/crosslinking copolymer products.

Key words: photochemical modification, AM/AMPS copolymer, peroxide, grafting/crosslinking copolymer

中图分类号:

O644

李妙贞, 覃耀进, 常志英, 王尔鑑. AM/AMPS共聚物光化学改性[J]. 影像科学与光化学, 2002, 20(4): 247-252.

LI Miao-zhen, QIN Yao-jin, CHANG Zhi-ying, WANG Er-jan. PHOTOCHEMICAL MODIFICATION OF AM/AMPS COPOLYMER[J]. Imaging Science and Photochemistry, 2002, 20(4): 247-252.

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AM/AMPS共聚物光化学改性

PHOTOCHEMICAL MODIFICATION OF AM/AMPS COPOLYMER

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