Thermal stability of cationically allylated poly(vinyl chloride) and poly(vinyl chloride-co-2-chloropropene) copolymer

Tibor Szakács, B. Iván, József Kupai

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Poly(vinyl chloride) (PVC) and PVC with increased concentrations of reactive tertiary chlorines (PVC(T)) were obtained by free radical polymerisations. PVC(T) was prepared by copolymerisation of vinyl chloride with 2-chloropropene. Thermal degradation of these polymers indicates the significant effect of tertiary chlorine defects on the thermal stability of PVC, i.e. increasing tertiary chlorine content decreases the stability of this polymer, on the one hand. However, efficient chemical modification, introduction of allyl groups by carbocationic derivatisation, is possible in the case of PVC(T) in contrast to the PVC homopolymer. It was found that allylation improves the thermal stability of both PVC and PVC(T). These investigations also indicate that about 50% allylation of thermally labile tertiary chlorines occurs in these polymers under the conditions used.

Original languageEnglish
Pages (from-to)1029-1033
Number of pages5
JournalPolymer Degradation and Stability
Volume85
Issue number3 SPEC. ISS.
DOIs
Publication statusPublished - Sep 2004

Fingerprint

Vinyl Chloride
Polyvinyl Chloride
Polyvinyl chlorides
chlorine
copolymers
Thermodynamic stability
thermal stability
Copolymers
chlorides
Chlorine
polymers
Allylation
thermal degradation
Polymers
copolymerization
free radicals
polymerization
defects
Chemical modification
Free radical polymerization

Keywords

  • Cationic allylation
  • Poly(vinyl chloride)
  • Poly(vinyl chloride-co-2-chloropropene)
  • PVC
  • Thermal degradation

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics

Cite this

Thermal stability of cationically allylated poly(vinyl chloride) and poly(vinyl chloride-co-2-chloropropene) copolymer. / Szakács, Tibor; Iván, B.; Kupai, József.

In: Polymer Degradation and Stability, Vol. 85, No. 3 SPEC. ISS., 09.2004, p. 1029-1033.

Research output: Contribution to journalArticle

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T1 - Thermal stability of cationically allylated poly(vinyl chloride) and poly(vinyl chloride-co-2-chloropropene) copolymer

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AU - Iván, B.

AU - Kupai, József

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N2 - Poly(vinyl chloride) (PVC) and PVC with increased concentrations of reactive tertiary chlorines (PVC(T)) were obtained by free radical polymerisations. PVC(T) was prepared by copolymerisation of vinyl chloride with 2-chloropropene. Thermal degradation of these polymers indicates the significant effect of tertiary chlorine defects on the thermal stability of PVC, i.e. increasing tertiary chlorine content decreases the stability of this polymer, on the one hand. However, efficient chemical modification, introduction of allyl groups by carbocationic derivatisation, is possible in the case of PVC(T) in contrast to the PVC homopolymer. It was found that allylation improves the thermal stability of both PVC and PVC(T). These investigations also indicate that about 50% allylation of thermally labile tertiary chlorines occurs in these polymers under the conditions used.

AB - Poly(vinyl chloride) (PVC) and PVC with increased concentrations of reactive tertiary chlorines (PVC(T)) were obtained by free radical polymerisations. PVC(T) was prepared by copolymerisation of vinyl chloride with 2-chloropropene. Thermal degradation of these polymers indicates the significant effect of tertiary chlorine defects on the thermal stability of PVC, i.e. increasing tertiary chlorine content decreases the stability of this polymer, on the one hand. However, efficient chemical modification, introduction of allyl groups by carbocationic derivatisation, is possible in the case of PVC(T) in contrast to the PVC homopolymer. It was found that allylation improves the thermal stability of both PVC and PVC(T). These investigations also indicate that about 50% allylation of thermally labile tertiary chlorines occurs in these polymers under the conditions used.

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KW - Thermal degradation

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