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Characterization of grafting in the emulsion polymerization of vinyl acetate using poly(vinyl alcohol) as stabilizer
Author(s) -
Egret Hélène,
Dimonie Victoria L.,
Sudol E. David,
Klein Andrew,
ElAasser Mohamed S.
Publication year - 2001
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.2015
Subject(s) - vinyl acetate , polyvinyl acetate , vinyl alcohol , polyvinyl alcohol , polymer chemistry , emulsion polymerization , gel permeation chromatography , grafting , materials science , polymer , emulsion , solvent , chemistry , chemical engineering , polymerization , organic chemistry , copolymer , engineering
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 investigated by a new method for separating the various polymer fractions in high solids content latexes. The quantification was carried out by a three‐step separation and selective solubilization of the PVAc latexes. After the separation, the water‐soluble PVA and the solvent‐soluble PVAc components were characterized by gel permeation chromatography and 13 C–NMR, from which the accuracy of this method was verified. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 82: 1739–1747, 2001