Journal
COLLOID AND POLYMER SCIENCE
Volume 286, Issue 11, Pages 1343-1348Publisher
SPRINGER
DOI: 10.1007/s00396-008-1892-0
Keywords
composite particles; surface grafting; silica; polystyrene; dispersion polymerization; supercritical carbon dioxide
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Funding
- Ministry of Education, Science & Technology (MoST), Republic of Korea [N28030] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [핵06B3707] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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A novel synthetic route to prepare polystyrene/SiO2 composite microparticles in supercritical carbon dioxide (scCO(2)) is presented. Silica particles with the size of 130 nm which were surface-modified with 3-(trimethoxysilyl) propyl methacrylate were used as seeds in the dispersion polymerization of styrene in the presence of a polymeric stabilizer, poly(1,1-dihydroheptafluorobutyl methacrylate-co-diisopropylaminoethyl methacrylate) to produce dry composite particles. The transmission electron microscopy analysis revealed that the composite microspheres contained several silica particles.
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