화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2006년 봄 (04/06 ~ 04/07, 일산킨텍스)
권호 31권 1호
발표분야 기능성 고분자
제목 Non-fluorous random copolymeric stabilizers for dispersion polymerizations of MMA in supercritical CO2
초록 Recently, we reported that semifluorinated random copolymers composed of 2-dimethylaminoethylmethacrylate (DMAEMA) and perfluorooctyl methacrylate (FOMA) were utilized as an effective stabilizer for the dispersion polymerization of MMA in scCO2, with providing dramatically large stabilization to the polymer latexes even at very low content of FOMA. In particular, DMAEMA was found to have an extraordinary stabilization effect on the polymerization due to the low Tg and basic nitrogen which interacts with the Lewis acid, CO2, compared with other hydrocarbon methacrylate comonomers. In this paper, we have explored the use of fluorine-free random copolymeric stabilizers based on DMAEMA in the dispersion polymerization of MMA in scCO2. Tris(trimethoxysilyl)propyl methacrylate (SiMA) was employed as a non-fluorous CO2-philic comonomer, and the resulting random copolymers were found to be effective stabilizers producing spherical PMMA particles.
저자 황하수, 도경민, 김원수, 임권택
소속 부경대
키워드 Dispersion polymerization; random copolymer; 2-dimethyl aminoethylmethacrylate; PMMA
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