Molecular weight distribution in composition controlled emulsion copolymerization

Authors
Sayer, C Lima, EL Pinto, JC Arzamendi, G Asua, JM
Citation
C. Sayer et al., Molecular weight distribution in composition controlled emulsion copolymerization, J POL SC PC, 38(7), 2000, pp. 1100-1109
Citations number
34
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
ISSN journal
0887624X → ACNP
Volume
38
Issue
7
Year of publication
2000
Pages
1100 - 1109
Database
ISI
SICI code
0887-624X(20000401)38:7<1100:MWDICC>2.0.ZU;2-K
Abstract
The effect of different strategies for copolymer composition control on the molecular weight distribution (MWD) and gel fraction in the emulsion copol ymerization of methyl methacrylate and butyl acrylate was investigated. Sta rved and semistarved processes for copolymer composition control were both considered. For gel-forming systems it was found that the starved process g ave more gel and lower molecular weights than the semistarved process. The feasibility of simultaneous control of the copolymer composition and the MW D was assessed. (C) 2000 John Wiley & Sons, Inc.