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Electron beam damage of some chlorine containing polymers and PVC blends
Luleå tekniska universitet.
Brunel University.
Chalmers University of Technology.
1989 (English)In: Journal of Materials Science, ISSN 0022-2461, E-ISSN 1573-4803, Vol. 24, no 8, p. 2825-2832Article in journal (Refereed) Published
Abstract [en]

The electron beam damage of PVC, PVDC, chlorinated PE, chlorosulphonated PE (Hypalon) and chloroendic acid polyester has been studied by chlorine loss and mass loss measurements. The mass loss decay curves have been recalculated for true mass loss and correlated with the X-ray measurements of chlorine loss. It is shown that the major mechanism of degradation in these polymers is dehydrochlorination. The rate of dehydrochlorination is dependent on the chemical structure of the polymer, and in particular on the availability of hydrogen for HCl formation. However, in case of chloroendic acid polyester, more complicated volatile chlorinated compounds are also formed. The dehydrochlorination rate and mass loss of miscible PVC blends, namely PVC with organotin stabilizer, PMMA, PCL and SAN have been studied. The rate of chlorine loss from PVC was found to be unchanged for all blends except for PMMA and PCL, where it slightly increased due to the chemical reaction between the molecular fragments of both polymers. The differences between the thermal degradation and electron beam damage are also discussed.

Place, publisher, year, edition, pages
1989. Vol. 24, no 8, p. 2825-2832
National Category
Composite Science and Engineering
Research subject
Polymeric Composite Materials
Identifiers
URN: urn:nbn:se:ltu:diva-9088DOI: 10.1007/BF02385633ISI: A1989AJ94000025Scopus ID: 2-s2.0-0024715046Local ID: 7a5fec10-0ab4-11dc-9854-000ea68e967bOAI: oai:DiVA.org:ltu-9088DiVA, id: diva2:982026
Note
Godkänd; 1989; 20070525 (cira)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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