摘要
A carbosilane dendrimer based macrophotoinitiator（MPI-185） containing benzophenone moiety terminal groups was synthesized by a divergent hydrosilylation/allylation reaction sequence followed by alcoholysis of the silicon chloride end groups.The structure of MPI-185 was characterized by FTIR,（）1H-NMR,（）13C-NMR,and（）29Si-NMR,and its intrinsic viscosity,molecular weight and polydispersity were meassured on by using a GPC complex system.Its reactivity was tested via curing a sensitive epoxy acrylate（EA） resin using FTIR,and the thermal property of films cured was measured by TGA.The results were compared with those of a small molecule photoinitiator（185）.It was found that the curring efficiency of macrophoinitiator（MPI-185） was satisfactory,and the thermal degradation temperature of EA resin cured with MPI-185 was also markedly improved.
A carbosilane dendrimer based macrophotoinitiator （MPI-185） containing benzophenone moiety terminal groups was synthesized by a divergent hydrosilylation/allylation reaction sequence followed by alcoholysis of the silicon chloride end groups. The structure of MPI-185 was characterized by FTIR, ^1 H-NMR, ^13 C-NMR, and ^29 Si- NMR, and its intrinsic viscosity, molecular weight and polydispersity were meassured on by using a GPC complex system. Its reactivity was tested via curing a sensitive epoxy acrylate （EA） resin using FTIR, and the thermal property of films cured was measured by TGA. The results were compared with those of a small molecule photoinitiator （185）. It was found that the curring efficiency of macrophoinitiator （MPI-185） was satisfactory, and the thermal degradation temperature of EA resin cured with MPI-185 was also markedly improved
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
2006年第5期707-711,共5页
Acta Polymerica Sinica
基金
西北工业大学科技创新基金(基金号M450211)资助项目
关键词
树状硅碳烷
大分子光引发剂
紫外光固化
热稳定性
Carbosilane dendrimer, Macrophotoinitiator, Ultrovialet curing, Thermal stability
