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Effects of colloidal stabilizer on vinyl acetate‐ethylene copolymer emulsions and films
Author(s) -
Gruber Bruce A.,
Vratsanos Menas S.,
Smith Carrington D.
Publication year - 2000
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200004)155:1<163::aid-masy163>3.0.co;2-2
Subject(s) - vinyl alcohol , copolymer , materials science , vinyl acetate , ethylene glycol , polymer chemistry , stabilizer (aeronautics) , emulsion , chemical engineering , polymer , colloid , peg ratio , aqueous solution , viscosity , emulsion polymerization , organic chemistry , chemistry , composite material , mechanical engineering , finance , economics , engineering
For vinyl acetate‐ethylene (VAE) emulsion polymerization, a comparison of stabilization mechanisms and their effect upon latex and film properties was made in which the different stabilizers were poly(vinyl alcohol) (PVOH), alkylphenol ethoxylate (APE) surfactants, and a urethane linked poly(ethylene glycol) (PEG) based polymer. PVOH stabilized VAE emulsions possessed high viscosity and no freeze‐thaw stability while the films were actually continuous in PVOH, much of which was due to the high content of PVOH in the continuous aqueous phase. APE stabilized VAE latexes were also of higher viscosity and the surfactants were miscible in the VAE continuous films. PEG‐based stabilization resulted in emulsions and films which were largely affected by the hydrophobicity of the latex (amount of ethylene incorporated into the copolymer).