Structural defects in poly(vinyl chloride)-V. Thermal and photodegradation of copolymers of vinyl chloride with various acetylene derivatives

D. Braun, B. Böhringer, B. Iván, T. Kelen, F. Tüdős

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Vinyl chloride has been copolymerized with various acetylene derivatives in bulk at 50. It has been shown by ozonolysis that these copolymers contain a significantly increased amount of internal double bonds. A comparison of the thermal and photodegradation behaviours of the copolymers has been made. The built-in double bonds show an effect on the reactivity of the adjacent allylic chlorine depending on the electron-withdrawing or repelling nature of the substituent. Among the comonomers investigated, copolymers containing 3-chloropropine have the least reactive defect sites, because of the electron-withdrawing chloromethyl substituent. On the contrary, the electron-repelling n-butyl group, built-in by using hexine-1 as comonomer, results in enhanced reactivity of the allylic chlorines.

Original languageEnglish
Pages (from-to)299-304
Number of pages6
JournalEuropean Polymer Journal
Volume22
Issue number4
DOIs
Publication statusPublished - 1986

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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