Controlled radical polymerization of vinyl acetate in supercritical CO2 catalyzed by CuBr/terpyridine

Title
Controlled radical polymerization of vinyl acetate in supercritical CO2 catalyzed by CuBr/terpyridine
Author(s)
이슬람모하마드타리쿨할도리유바라즈웬방호아나오샤드이슬람나춘섭심재진
Keywords
FRAGMENTATION CHAIN TRANSFER; CARBON-DIOXIDE; METHYL-METHACRYLATE; DISPERSION POLYMERIZATION; EQUILIBRIUM-CONSTANTS; RATE COEFFICIENTS; FLUID CO2; COMPLEXES; COPPER; ATRP
Issue Date
201406
Publisher
KOREAN INSTITUTE CHEMICAL ENGINEERS
Citation
KOREAN JOURNAL OF CHEMICAL ENGINEERING, v.31, no.6, pp.1088 - 1094
Abstract
Poly(vinyl acetate) (PVAc) was synthesized by the atom transfer radical polymerization of vinyl acetate (VAc) in supercritical carbon dioxide using CuBr/2,2':6',2aEuro(3)-terpyridine complex as a catalyst and ethyl 2-bromoisobutyrate as an initiator. Polymerization proceeded in a controlled manner, and low to moderate conversion was achieved within a reasonable time. The effects of the monomer amount, temperature, pressure, initiator, and ligand loading on monomer conversion, molecular weight and molecular weight distribution of the polymer were examined. The reaction kinetics was also investigated. The polymerization reaction was found to be first-order with respect to the monomer concentration. The molecular weights of the resulting PVAc increased linearly with increasing VAc conversion.
URI
http://hdl.handle.net/YU.REPOSITORY/32016http://dx.doi.org/10.1007/s11814-014-0031-5
ISSN
0256-1115
Appears in Collections:
공과대학 > 화학공학부 > Articles
이과대학 > 화학생화학부 > Articles
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