OALib Journal期刊
ISSN: 2333-9721
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支化侧链偶氮无规共聚物中空和类囊泡聚集体研究
DOI: 10.3724/SP.J.1105.2013.12313, PP. 549-555
Keywords: 支化侧链,偶氮无规共聚物,中空聚集体,囊泡状聚集体,H-聚集,光响应性
Abstract:
研究了支化侧链型偶氮无规共聚物(PMAPB6P-AA)在THF/H2O混合溶液中的自组装行为.研究发现,通过缓慢增加体系的水含量,可以制备出具有中空结构的非球形聚集体.调节聚合物的初始浓度,可以得到不同粒径的聚集体.聚集体中偶氮生色团的光致异构化速率与异构化程度随聚合物初始浓度的增大而减小.在此基础上,采用更加缓慢的增加水含量的方法,使聚合物分子进行充分的疏水聚集与H-聚集,制备出类囊泡状聚集体.在紫外光照射条件下,观察到类囊泡聚集体发生了光致解聚集.
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