Characterization of grafting in the emulsion polymerization of vinyl acetate using poly(vinyl alcohol) as stabilizer

Authors
Egret, H Dimonie, VL Sudol, ED Klein, A El-Aasser, MS
Citation
H. Egret et al., Characterization of grafting in the emulsion polymerization of vinyl acetate using poly(vinyl alcohol) as stabilizer, J APPL POLY, 82(7), 2001, pp. 1739-1747
Citations number
13
Categorie Soggetti
Organic Chemistry/Polymer Science","Material Science & Engineering
Journal title
JOURNAL OF APPLIED POLYMER SCIENCE
ISSN journal
00218995 → ACNP
Volume
82
Issue
7
Year of publication
2001
Pages
1739 - 1747
Database
ISI
SICI code
0021-8995(20011114)82:7<1739:COGITE>2.0.ZU;2-O
Abstract
Emulsion polymerizations of vinyl acetate (VAc) with polyvinyl alcohol (PVA ) as emulsifier were carried out by both batch and semicontinuous processes . The extent of grafting of vinyl acetate onto the PVA chains was investiga ted by a new method for separating the various polymer fractions in high so lids content latexes. The quantification was carried out by a three-step se paration and selective solubilization of the PVAc latexes. After the separa tion, the water-soluble PVA and the solvent-soluble PVAc components were ch aracterized by gel permeation chromatography and C-13-NMR, from which the a ccuracy of this method was verified. (C) 2001 John Wiley & Sons, Inc.