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Preparation of high molecular weight monodisperse polystyrene latexes by concentrated emulsion polymerization
Author(s) -
Sun Fuming,
Ruckenstein Eli
Publication year - 1993
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.1993.070480716
Subject(s) - dispersity , polystyrene , emulsion polymerization , emulsion , polymer chemistry , materials science , chemical engineering , polymerization , monomer , decane , pulmonary surfactant , volume fraction , ionic strength , chemistry , polymer , organic chemistry , aqueous solution , composite material , engineering
The preparation of high molecular weight monodisperse polystyrene (PS) latexes by the concentrated emulsion polymerization is investigated. The PS latexes thus obtained have diameters in the range of 0.1–0.3 μm. The average size and the dispersity of the latexes are dependent on the concentration of surfactant (SDS), the monomer volume fraction, and the amount of monpolymerizable additive (decane). The ionic strength does not seem to affect the size but affect the dispersity of the latexes. Under proper conditions, monodisperse particles can be prepared with a quite small standard deviation. © 1993 John Wiley & Sons, Inc.