Relaxation studies of the seeded emulsion polymerization of styrene initiated by γ-radiolysis

Lansdowne, S. W., Gilbert, R. G., Napper, D. H. and Sangster, D. F. (1980) Relaxation studies of the seeded emulsion polymerization of styrene initiated by γ-radiolysis. Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 76 1344-1355. doi:10.1039/f19807601344


Author Lansdowne, S. W.
Gilbert, R. G.
Napper, D. H.
Sangster, D. F.
Title Relaxation studies of the seeded emulsion polymerization of styrene initiated by γ-radiolysis
Journal name Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases   Check publisher's open access policy
ISSN 0300-9599
Publication date 1980
Sub-type Article (original research)
DOI 10.1039/f19807601344
Volume 76
Start page 1344
End page 1355
Total pages 12
Place of publication Cambridge, United Kingdom
Publisher Royal Society of Chemistry
Language eng
Formatted abstract
Results are reported for the relaxation kinetics of the emulsion polymerization of styrene in seeded systems initiated by γ-radiolysis. The decay in the rate of polymerization after removal from the radiation field was followed dilatometrically. The data were interpreted using an extended Smith-Ewart theory. This confirmed values for the rate coefficients for both the first-order loss of free radicals from the particles (k) and the entry of thermally generated free radicals into the particles (ρ0) obtained in a separate chemically initiated study. Temperature-dependent studies showed that these two rate coefficients, for particles of radius 48 ± 2 nm, could be expressed as log(k/s-1) = (3.8 ± 0.5)-(42 ± 10 kJ mol-1/2.303 RT), and log(ρ0/S-1) = (10.4 ± 1.0)-(87 ± 10 kJ mol-1/2.303 RT).
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Centre for Nutrition and Food Sciences Publications
 
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Created: Mon, 07 Mar 2011, 15:49:25 EST