可溶解的聚氨酯交联大分子的合成及其特殊的溶液行为  

SYNTHESIS OF SOLUBLE POLYURETHANE CROSS-LINKED MACROMOLECULES AND THEIR SPECIAL SOLUTION BEHAVIOR

作　　者：栗方星[1] 芮嘉明[1] 吴祥[1] 陈胜男[1] 杨晓英[2] 刘遵峰[1] 安英丽[1] 左榘[1] 

机构地区：[1]南开大学吸附分离功能高分子材料国家重点实验室,南开大学化学学院天津300071 [2]天津医科大学药学院,天津300070

出　　处：《离子交换与吸附》2004年第3期237-247,共11页Ion Exchange and Adsorption

基　　金：吸附分离功能高分子材料国家重点实验室开放基金

摘　　要：到目前为止,交联过程之所以难以控制是因为在交联聚合体系中,没有一个与交联过程相竞争的反应。本文利用大分子在溶液中是无规线团的特征,设计了含有分子内和分子间反应的交联聚合体系,分子间反应即交联过程,而分子内反应使分子间反应受到抑制,使交联过程的链增长不能无限发展,从而合成了可溶解的具有交联结构的大分子。Up to now, to control the cross-linking process is still difficult in the cross-linking polymerization system, because there is not a competitive reaction against the cross-linking process. In this paper the feature of random coil type morphology of macromolecules in solution is used to design a cross-linking polymerization system consisting of inter- and intramolecular reactions. The intermolecular reaction is the cross-linking process, while the intramolecular reaction makes the intermolecular reaction controlled. So the chain growth of the cross-linking process is prevented from unceasing development, as a result the soluble cross-linked macromolecules are synthesized.

关 键 词：分子内反应 分子间反应 可控的交联过程 分子内交联大分子 

分 类 号：O633.4[理学—高分子化学]