Reversible addition−fragmentation chain transfer polymerization initiated with ultraviolet radiation

Quinn, John F., Barner, Leonie, Barner-Kowollik, Christopher, Rizzardo, Ezio, & Davis, Thomas P. (2002) Reversible addition−fragmentation chain transfer polymerization initiated with ultraviolet radiation. Macromolecules, 35(20), pp. 7620-7627.

View at publisher


Styrene was polymerized under a source of ultraviolet radiation in the presence of certain thiocarbonylthio compounds. Use of 1-phenylethyl phenyldithioacetate (1-PEPDTA) produced well-defined polymers with molecular weights close to those predicted from theory, up to conversions of 30%. The mechanism of polymerization was examined and shown to proceed via reversible addition-fragmentation chain transfer, as opposed to reversible termination with a thiocarbonylthiyl radical. UV-induced decomposition of the dithioester moiety in 1-PEPDTA and 1-phenylethyl dithiobenzoate (1-PEDB) mediated RAFT polymerizations was followed using UV/vis spectrophotometry, 1-PEPDTA decomposed much slower than 1-PEDB. Analysis of the decomposition products of 1-PEPDTA with gas chromatography/mass spectrometry was used to elucidate a possible mechanism for its degradation, suggesting that both 1-phenylethyl and benzyl radicals are decomposition products.

Impact and interest:

176 citations in Scopus
Search Google Scholar™
171 citations in Web of Science®

Citation counts are sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

ID Code: 97512
Item Type: Journal Article
Refereed: Yes
DOI: 10.1021/ma0204296
ISSN: 1520-5835
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2002 American Chemical Society
Deposited On: 21 Jul 2016 23:50
Last Modified: 28 Jul 2016 21:52

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page