Jian-hua SONG, Jian-hua ZHANG, Min XU, Wen DONG, Shi-heng GUO. Preparation and Characterization of Copolymer from Styryl-tetra-coordinated Silicon Monomer and HEMA[J]. Polymer Bulletin, 2007,20(3):37-40.
High reactive penta-coordinated organic silicon was prepared via the reaction of silica with ethylene glycol and potassium hydroxide. Tetra-coordinated silicon monomer with a double bond was produced by the reaction of this penta-coordinated silicon with 4-vinylbenzyl chloride. Then the copolymer with silicon-containing branch was prepared. by the free radical polymerization of this tetra-coordinated silicon monomer with HEMA. The tetracoordinated silicon monomer and its copolymer were characterized by FTIR
EA
EDS
TG
DSC
GPC
etc. An adsorption band of IR spectrum at 1630cm
-1
for C=C was indicated for tetra-coordinate silicon monomer
but disappeared for the copolymer. TG analysis showed the co-polymer began losing weight at 343℃. The glass transition temperature was 48.1℃.