In:
Polymer International, Wiley, Vol. 54, No. 12 ( 2005-12), p. 1660-1668
Abstract:
Free radical dispersion polymerization of methyl methacrylate (MMA) was carried out in supercritical carbon dioxide (scCO 2 ) using poly{(heptadecafluorodecyl acrylate)‐ co ‐3‐[tris(trimethylsilyloxy)silyl]propyl methacrylate} (p(HDFDA‐ co ‐SiMA)) as stabilizer. Dry, fine powdered spherical poly(methyl methacrylate) (pMMA) particles with well‐defined sizes were produced. The resulting high yield of spherical and relatively uniform micron‐size pMMA particles was formed utilizing various amounts of p(HDFDA‐ co ‐SiMA) random copolymer. The particle diameter was shown to be dependent on the weight percent of the stabilizer added to the system. The effects of varying the concentration of stabilizer (1–7 wt%), reaction time (4–12 h) and pressure (15–35 MPa) upon the polymerization yield, molar mass and morphology of pMMA were investigated. Copyright © 2005 Society of Chemical Industry
Type of Medium:
Online Resource
ISSN:
0959-8103
,
1097-0126
Language:
English
Publisher:
Wiley
Publication Date:
2005
detail.hit.zdb_id:
2004753-8
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