Synthesis of Graft Copolymer from Polysilsesquioxane Initiated by Photoiniferter

From the polysilsesquioxane having phenyl groups and diethyldithiocarbamate groups served as the photoiniferters, the graft derivative (4) was obtained by the polymerization with N,N-dimethylacrylamide under UV irradiation without gelation. The effects of the grafting on physical properties were shown in the measurements of thermal stability and contact angle of 4.