TY - JOUR
T1 - Synthesis and characterization of hyperbranched poly(Siloxysilanes)
AU - Wang, Xin
AU - Fan, Xiaodong
AU - Wang, Shengjie
AU - Kong, Jie
AU - Liu, Yuyang
AU - Gong, Yan
PY - 2006/12
Y1 - 2006/12
N2 - Three hyperbranched poly(siloxysilanes) were prepared from AB 3-type monomers at the presence of Karstedt catalyst. The detailed synthesis procedures of AB3-type monomers by reaction between γ-methacryloyloxy propyltrimethoxysilane or vinyltrimethoxysilane with chlorosilane using anhydrous ferric chloride as the catalyst were described. This new approach can simplify the synthetic routes for hyperbranched polysiloxanes. FTIR, 1H-NMR, 13C-NMR, 29Si-NMR, elemental analysis and SEC/MALLS were employed to identify the structure of the polymers. The analyses revealed that the reaction between alkoxysilane and chlorosilane could be feasibly catalyzed by anhydrous ferric chloride. The reaction of vinyltrimethoxysilane with chlorosilane could be carried out more easily than that of γ-methylacrylacyloxypropyltrimethoxylsilane with chlorosilane due to its steric hindrance effect.
AB - Three hyperbranched poly(siloxysilanes) were prepared from AB 3-type monomers at the presence of Karstedt catalyst. The detailed synthesis procedures of AB3-type monomers by reaction between γ-methacryloyloxy propyltrimethoxysilane or vinyltrimethoxysilane with chlorosilane using anhydrous ferric chloride as the catalyst were described. This new approach can simplify the synthetic routes for hyperbranched polysiloxanes. FTIR, 1H-NMR, 13C-NMR, 29Si-NMR, elemental analysis and SEC/MALLS were employed to identify the structure of the polymers. The analyses revealed that the reaction between alkoxysilane and chlorosilane could be feasibly catalyzed by anhydrous ferric chloride. The reaction of vinyltrimethoxysilane with chlorosilane could be carried out more easily than that of γ-methylacrylacyloxypropyltrimethoxylsilane with chlorosilane due to its steric hindrance effect.
KW - Hyperbranched polymer
KW - Metallic halid catalyst
KW - Siloxysilane
UR - http://www.scopus.com/inward/record.url?scp=34248589681&partnerID=8YFLogxK
U2 - 10.3724/sp.j.1105.2006.01112
DO - 10.3724/sp.j.1105.2006.01112
M3 - 文章
AN - SCOPUS:34248589681
SN - 1000-3304
SP - 1112
EP - 1116
JO - Acta Polymerica Sinica
JF - Acta Polymerica Sinica
IS - 9
ER -