CHARACTERIZATION OF POLYCHLOROPRENES AND CATIONICALLY MODIFIED POLYCHLOROPRENES BY THERMAL DEHYDROCHLORINATION.

B. Iván, Joseph P. Kennedy, Sebastian S. Plamthottam, Tibor Kelen, Ferenc Tudos

Research output: Contribution to journalArticle

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Abstract

In the reported experiments, thermal dehydrochlorination of polychloroprenes and modified polychloroprenes was studied and was found to be rapid, readily reproducible, and reliable for the characterization of these rubbers. The rates of thermal dehydrochlorination of polychloroprenes and modified polychloroprenes are first order at 190 degree C under nitrogen. Significantly, the plot of dehydrochlorination rate versus dehydrochlorination extent for polychloroprenes shows the three regions. These data may be attributed to three dehydrochlorination regimes associated with four contributing repeat structures that have been identified by **1**3C-NMR spectroscopy. Reaction mechanisms of dehydrochlorination of both polymers studied are suggested. Both mechanisms have been shown significantly differ from each other.

Original languageEnglish
Pages (from-to)1685-1692
Number of pages8
JournalJournal of polymer science. Part A-1, Polymer chemistry
Volume18
Issue number6
Publication statusPublished - Jun 1980

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Nuclear magnetic resonance spectroscopy
Rubber
Nitrogen
Polymers
Experiments
Hot Temperature

ASJC Scopus subject areas

  • Engineering(all)

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CHARACTERIZATION OF POLYCHLOROPRENES AND CATIONICALLY MODIFIED POLYCHLOROPRENES BY THERMAL DEHYDROCHLORINATION. / Iván, B.; Kennedy, Joseph P.; Plamthottam, Sebastian S.; Kelen, Tibor; Tudos, Ferenc.

In: Journal of polymer science. Part A-1, Polymer chemistry, Vol. 18, No. 6, 06.1980, p. 1685-1692.

Research output: Contribution to journalArticle

Iván, B. ; Kennedy, Joseph P. ; Plamthottam, Sebastian S. ; Kelen, Tibor ; Tudos, Ferenc. / CHARACTERIZATION OF POLYCHLOROPRENES AND CATIONICALLY MODIFIED POLYCHLOROPRENES BY THERMAL DEHYDROCHLORINATION. In: Journal of polymer science. Part A-1, Polymer chemistry. 1980 ; Vol. 18, No. 6. pp. 1685-1692.
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