Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1400134 | European Polymer Journal | 2008 | 9 Pages |
Abstract
A series of non-fluorous random copolymers, composed of 3-[tris(trimethylsilyloxy)silyl] propyl methacrylate and 2-dimethylaminoethyl methacrylate, poly(SiMA-co-DMAEMA) with different comonomer ratios were prepared and utilized as stabilizers for the free radical dispersion polymerization of methyl methacrylate (MMA) in supercritical carbon dioxide (scCO2). It was demonstrated that the composition and concentration of the stabilizer have a dramatic effect on the morphology of resulting poly methyl methacrylate (PMMA) latex. When the copolymeric stabilizer poly(SiMA-co-DMAEMA) (71:29) was employed, free-flowing spherical PMMA particles were produced in high yield. As the concentration of stabilizer increases, the resulting size of colloidal particles decreases. In addition, the monomer concentration and initial pressure affected the particle diameter of PMMA.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Haldorai Yuvaraj, Ha Soo Hwang, Won Soo Kim, Hyun Gyu Kim, Euh Duck Jeong, Kwon Taek Lim,