Shape memory study of thermoplastic segmented polyurethane: Influence of hard segment

S. Mondal, Jinlian Hu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

8 Citations (Scopus)

Abstract

Thermally stimulated shape memorypolymers (SMP) are defined by their ability to store and recoverstrains when subjected to a particular thermo-mechanical cycle. The thermo-mechanical behavior of SMPs can be tailored by modifying the molecular structure of the polymer. In this article, the shape memory behavior of thermoplastic segmented polyurethane (TSPU) as a function of hard segment (HS) has been reported. The experimental results showed that tailoring of hard and soft segment is extremely necessary for TSPU showing shape memory behavior. The thermo-mechanical properties of TSPU with four different concentrations of hard segment viz. 58.7, 47.9, 37.5, and 31.0% have been studied in this article. TSPU with 58.7% of hard segment content would not able to elongate even up to 30% in experimental condition. However, all other three samples show good shape memory behavior.
Original languageEnglish
Pages (from-to)939-942
Number of pages4
JournalPolymer - Plastics Technology and Engineering
Volume46
Issue number10
DOIs
Publication statusPublished - 1 Oct 2007

Keywords

  • Hard segment
  • Shape fixity
  • Shape recovery
  • Thermoplastic segmented polyurethane

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Science (miscellaneous)
  • Chemical Engineering(all)
  • Materials Chemistry

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