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Segmented block copolymers with monodisperse hard segments: the influence of H-bonding on various properties

  • Gerard J.E. Biemond*
  • , Jan Feijen
  • , Reinoud J. Gaymans
  • , Hetty W.M. ten Hoopen
  • *Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

The properties of segmented-copolymer-based H-bonding and non-H-bonding crystallisable segments and poly(tetramethylene oxide) segments were studied. The crystallisable segments were monodisperse in length and the non-hydrogen-bonding segments were made of tetraamidepiperazineterephthalamide (TPTPT). The polymers were characterised by DSC, FT-IR, SAXS and DMTA. The mechanical properties were studied by tensile, compression set and tensile set measurements. The TPTPT segmented copolymers displayed low glass transition temperatures (Tg, −70 °C), good low-temperature properties, moderate moduli (G′ ≈ 10–33 MPa) and high melting temperatures (185–220 °C). However, as compared to H-bonded segments, both the modulus and the yield stress were relatively low.
Original languageEnglish
Pages (from-to)492-501
JournalMacromolecular materials and engineering
Volume294
Issue number8
DOIs
Publication statusPublished - 2009

Keywords

  • Properties
  • Block copolymers
  • Monodisperse
  • H-bonding
  • Piperazine
  • Crystallization

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