An ESR study of irradiated poly(tetrafluoroethylene-co-perfluoropropyl vinyl ether) (PFA)

Dargaville, Tim R., Hill, David, & Whittaker, Andrew K. (2001) An ESR study of irradiated poly(tetrafluoroethylene-co-perfluoropropyl vinyl ether) (PFA). Radiation Physics and Chemistry, 62(1), pp. 25-31.

View at publisher


Poly(tetrafluoroethylene-co-perfluoropropyl vinyl ether) (PFA) with 2 mol% perfluoropropyl vinyl ether (PPVE) was exposed to γ-irradiation in vacuum at both 77 K and room temperature and the ESR spectra recorded. Both the main chain, CF2–C.F–CF2, and end chain, CF2C.F2 radicals were identified at both temperatures and their thermal stabilities measured. No radicals unique to the radiolytic cleavage at the PPVE units were observed at room temperature, either due to the low concentration of the comonomer or β-scission to form a chain end radical and a non-radical species. G-values for radical formation at room temperature and 77 K were found to be 0.93 and 0.16, respectively.

Impact and interest:

17 citations in Scopus
17 citations in Web of Science®
Search Google Scholar™

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: 33128
Item Type: Journal Article
Refereed: Yes
Additional URLs:
Keywords: Poly(tetrafluoroethylene-co-perfluoropropyl vinyl ether), ESR; γ-irradiation, Fluoropolymer, G-value
DOI: 10.1016/S0969-806X(01)00418-2
ISSN: 0969-806X
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MATERIALS ENGINEERING (091200) > Polymers and Plastics (091209)
Deposited On: 14 Jul 2010 22:09
Last Modified: 10 Aug 2011 18:18

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page