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Cationic surface polymerization of 1,3‐divinylimidazolid‐2‐one for immobilization on silica gel particles
Author(s) -
Spange Stefan,
Meyer Torsten
Publication year - 1999
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/(sici)1521-3935(19990701)200:7<1655::aid-macp1655>3.0.co;2-h
Subject(s) - cationic polymerization , monomer , polymer chemistry , polymerization , polymer , materials science , bifunctional , chemical engineering , chemistry , catalysis , organic chemistry , engineering
Abstract The cationic polymerization of the bifunctional monomer 1,3‐divinylimidazolid‐2‐one (BVH) is initiated by triphenylmethylium/silica hybrid particles in toluene or 1,2‐dichloroethane (DCE) as solvents. Novel poly‐BVH/silica hybrid particles are obtained by this procedure. The degree of surface functionalization can be controlled by the BVH concentration and the solvent used. The cationic polymerization of BVH on the surface of silica particles is strongly determined by proton transfer reactions to the monomer. Therefore, the BVH polymer network on the silica particle contains methyl groups and double bonds among the urea units.