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Study of the preparation of silicone rubber particles with core–shell structure by seeded emulsion polymerization
Author(s) -
He WeiDong,
Cao ChunTao,
Pan CaiYuan
Publication year - 1996
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/(sici)1097-0126(199601)39:1<31::aid-pi444>3.0.co;2-2
Subject(s) - emulsion polymerization , methyl methacrylate , materials science , monomer , siloxane , polymer chemistry , polystyrene , silicone rubber , vinyl acetate , polymerization , silicone , natural rubber , vinyl polymer , emulsion , composite material , chemical engineering , copolymer , polymer , engineering
Silicone rubber particles with core–shell structure were prepared by polymerization of vinyl monomers in the presence of linear or cross‐linked poly(dimethyl siloxane–methyl vinyl siloxane) latexes. The monomers were added in either continuous or swelled‐continuous modes. Core–shell particles with poly(butyl methacrylate), or poly(methyl methacrylate), as the shell were obtained by using either addition mode. The core–shell structure was not observed for polysiloxane–polystyrene particles. The influence of monomer addition mode, the compatibilities of the monomers and their homopolymers with silicone rubber, and the reactivity ratios of the vinyl monomers with the vinyl group of linear polysiloxane particles, on the formation of the core‐shell structure is discussed.