Transfer constants from complete molecular weight distributions

Christie, David I. and Gilbert, Robert G. (1996) Transfer constants from complete molecular weight distributions. Macromolecular Chemistry and Physics, 197 1: 403-412. doi:10.1002/macp.1996.021970131

Author Christie, David I.
Gilbert, Robert G.
Title Transfer constants from complete molecular weight distributions
Journal name Macromolecular Chemistry and Physics   Check publisher's open access policy
ISSN 1022-1352
Publication date 1996-01
Sub-type Article (original research)
DOI 10.1002/macp.1996.021970131
Volume 197
Issue 1
Start page 403
End page 412
Total pages 10
Place of publication Weinheim, Germany
Publisher Wiley
Language eng
Formatted abstract
Transfer constants to chain-transfer agent (CTA) and to monomer can be obtained by consideration of the complete molecular weight distribution, using the slope of a plot of the natural logarithm of number-molecular weight distribution against molecular weight, in the limit of high molecular weight and low radical flux (P. A. Clay, R. G. Gilbert, Macromolecules 28, 552 (1995)). This method is applied to the bulk polymerisations of methyl methacrylate (MMA) with added triethylamine (TEA) and with added tert-dodecylmercaptan (mixture of 2,4,4,6,6-pentamethylheptane-2-thiol and 2,2,4,6,6-pentamethylheptane-4-thiol, TDM). The transfer rate coefficients are found to be 74 (±20) dm3 · mol-1 · s-1 at 60°C for TEA, and 56 (±13) dm3 · mol-1 · s-1 at 25°C for TDM.
Keyword Free-radical polymerization
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes Article first published online: 12 March 2003. Erratum Vol 198,2 pg 633, 1997: Transfer constants from complete molecular weight distributions (vol 197,1 pp 403-412, 1996)

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemistry and Molecular Biosciences
Centre for Nutrition and Food Sciences Publications
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Created: Mon, 07 Mar 2011, 15:38:53 EST