Open AccessDevelopment and application of latent hydrosilylation catalysts [2]—Control of catalytic activity of platinum catalyst by polystyrene derivatives having propargyl moieties
Author(s) -
Kishi Katsuhiko,
Ishimaru Taizo,
Ozono Masayoshi,
Tomita Ikuyoshi,
Endo Takeshi
Publication year - 2000
Publication title -
journal of polymer science part a: polymer chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.768
H-Index - 152
eISSN - 1099-0518
pISSN - 0887-624X
DOI - 10.1002/(sici)1099-0518(20000101)38:1<35::aid-pola5>3.0.co;2-s
Subject(s) - hydrosilylation , propargyl , polystyrene , catalysis , chloroplatinic acid , polymer chemistry , styrene , trimethylsilane , copolymer , chemistry , polymer , materials science , platinum , organic chemistry
A new thermal latent hydrosilylation catalyst on the basis of H 2 PtCl 6 and polystyrene derivatives having propargyl moieties is described. The polystyrene derivatives having various propargyl moieties were obtained by the reaction of propargyl alcohols with poly( p ‐chloromethylstyrene) or its copolymer with styrene. The polymer‐supported platinum catalysts were prepared by aging H 2 PtCl 6 with these polymers in tetrahydrofuran at 30 °C for 12 h. In the presence of the polymers, the hydrosilylation activity of H 2 PtCl 6 was found to be controlled thermally in the model reaction of trimethylsilane and triethylvinylsilane. Effective control of the crosslinking reaction of silicone resin was also achieved by using these latent catalyst systems. © 2000 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 38: 35–42, 2000