Elucidation of the hard segment transition in a diacetylene-containing copolyurethane using modulated differential scanning calorimetry

Xiao Hu*, Christopher D. Breach, Robert J. Young

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

A segmented copolyurethane containing diacetylene units in the hard segments has been analysed using modulated differential scanning calorimetry (m.d.s.c.). An endothermic peak is observed in the m.d.s.c. reversible heat flow curve at about 160°C which is due to an order-disorder transition of the paracrystalline diacetylene-containing hard segments. Such a transition is confirmed for the first time, since it was undetectable in previous conventional d.s.c. analysis.

Original languageEnglish
Pages (from-to)981-983
Number of pages3
JournalPolymer
Volume38
Issue number4
DOIs
Publication statusPublished - 1997
Externally publishedYes

ASJC Scopus Subject Areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Keywords

  • Diacetylene
  • Hard segments
  • Order-disorder transition
  • Segmented copolyurethanes

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