摘要
本文介绍了含香豆素基团树形聚丁二烯的树形结构对香豆素基团光致交联性能的影响。香豆素的光二聚及光裂解过程均通过UV-Vis进行监控,交联前后聚合物的分子机理通过GPC进行表征。测试结果表明随聚合物结构致密性增加,香豆素光交联性能变优异;体系中存在"高分子链内/高分子链间交联"共同作用。
The effects of dendritic structure on photo-crosslinking properties of coumarin containing dendritic polybutadiene were discussed. The structure of dimers and the reaction process were monitored by UV-Vis. The reaction mechanism was analyzed by GPC. The results showed that the photocrosslinking properties of coumarins became better when the structure of polymer getting compact. Meanwhile,there was inter-/ intra- molecular photocrosslinking in this system.
出处
《染料与染色》
CAS
2016年第6期13-18,共6页
Dyestuffs and Coloration
关键词
树形聚合物
香豆素
光致交联
dendritic polymer
coumarin
photocrosslinking
