Stabilization of dispersion polymerization by poly(styrene-b-ethylene oxide) copolymers

A series of poly(styrene-b-ethylene oxide) copolymers were investigated as stabilizers for the dispersion polymerization of styrene in methanol. The effects of stabilizer molecular weight, stabilizer/anchor ratio and stabilizer concentration on particle diameter and polydispersity were examined. Lar...

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Bibliographic Details
Published inEuropean polymer journal Vol. 30; no. 1; pp. 121 - 128
Main Authors Winzor, Catherine L., Mrázek, Zdeněk, Winnik, Mitchell A., Croucher, Melvin D., Riess, Gérard
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 1994
Elsevier
Subjects
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Polymerization
Preparation, kinetics, thermodynamics, mechanism and catalysts
Stabilization
Ethylene oxide copolymer
Experimental study
Property processing relationship
Latex
Free radical polymerization
Preparation
Concentration effect
Micron size particle
Dispersion polymerization
Monodispersed particle
Styrene polymer
Block copolymer
Styrene copolymer
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Summary:A series of poly(styrene-b-ethylene oxide) copolymers were investigated as stabilizers for the dispersion polymerization of styrene in methanol. The effects of stabilizer molecular weight, stabilizer/anchor ratio and stabilizer concentration on particle diameter and polydispersity were examined. Large (2 μm) monodisperse polystyrene particles were formed when a low molecular weight stabilizer was used, while broad bimodal distributions were found for polystyrene particles stabilized by higher molecular weight copolymeric stabilizers.
ISSN:0014-3057
1873-1945
DOI:10.1016/0014-3057(94)90241-0