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Determination of transfer constants of non‐ionic thiolended surfactants (transurfs) in styrene free‐radical polymerizations
Author(s) -
Vidal Frédéric,
Gilbert Robert G.
Publication year - 1996
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.1996.021970605
Subject(s) - styrene , polymer chemistry , ethylene oxide , chemistry , ionic bonding , polymerization , molar mass distribution , radical polymerization , polymer , copolymer , organic chemistry , ion
The transfer constants of 1‐dodecanethiol and non‐ionic thiol‐ended surfactants (transurfs) have been determined for the bulk polymerization of styrene at 70°C; these values are 19 for l‐dodecanethiol and 19 and 14 for the transurfs with 17 and 90 ethylene oxide units, respectively. Transfer constants are obtained from the high‐molecular‐weight portion of the full number molecular weight distribution.