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Poly(styrene) coating of monodispersed colloidal metal oxides by grafting to hydrophilic macromer adsorbed on the surface
Author(s) -
Yoshinaga Kohji,
Yokoyama Takafumi,
Kito Taketoshi
Publication year - 1993
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.1993.220040108
Subject(s) - materials science , macromonomer , styrene , copolymer , grafting , polymer chemistry , polymerization , divinylbenzene , colloid , coating , adsorption , chemical engineering , composite material , polymer , organic chemistry , chemistry , engineering
Poly(styrene) (PST) coatings of monodispersed colloidal metal oxide particles by surface grafting to poly(N‐vinyl‐2‐pyrrolidone) (ST–PVP) or quaternized poly(4‐vinylpyridine) (ST‐PVPy(Me)) macromer, having a vinylphenylene end group, were investigated. Radical polymerization of styrene (ST) in ethanolic silica colloid in the presence of ST‐PVP successfully led to the formation of monodispersed PST/PVP copolymer/SiO 2 composites. The addition of divinylbenzene (DVB) to the reaction system gave SiO 2 composites coated with crosslinked PST. Graft‐polymerization of ST to ST‐PVP also took place on TiO 2 , CeO 2 and Al(OH) 3 colloidal particles in ethanolic solution. However, ST‐PVPy(Me) adsorbed on colloidal silica did not effectively graft PST.