ANIONIC GRAFTING OF POLYSTYRENE AND POLY(STYRENE-BLOCK-ISOPRENE) ONTO MICROPARTICULATE SILICA AND GLASS SLIDES

POLYMER

卷:33

Article

OOSTERLING, MLCM ; SEIN, A ; SCHOUTEN, AJ

关键词: ANIONIC GRAFT POLYMERIZATION;    MICROPARTICULATE SILICA;    POLYSTYRENE;    BLOCK COPOLYMERIZATION;    IMMOBILIZED DOUBLE BOND;   

DOI  :  10.1016/0032-3861(92)90286-6

来源: Elsevier

【 摘 要 】

Polystyrene and poly(styrene-block-isoprene) were grafted onto microparticulate silica by initiating immobilized double bonds at the silica surface with t-butyllithium, and subsequently adding monomer to the reaction suspension. Grafted block copolymers could be synthesized by adding a second monomer after the first monomer had reacted completely. The obtained molecular-weight distributions were somewhat broader than those for comparable anionic homopolymerizations.

【 授权许可】

Free