Crosslinked polyurethanes with shape memory properties

Jinlian Hu, Zhuohong Yang, Lapyan Yeung, Fenglong Ji, Yequi Liu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

140 Citations (Scopus)


A series of shape memory polyurethanes (SMPUs) was prepared from polycaprolactone diol (PCL) 4000, 1,4-butanediol (BDO), dimethylol propionic acid (DMPA), triethylamine, and 4,4′-diphenylmethane diisocyanate (MDI), to which excess MDI or glycerin were added to obtain crosslinked shape memory polyurethanes. Their mechanical, thermomechanical, thermal and shape memory properties were investigated by using differential scanning calorimetry (DSC), Fourier-transform (FTIR) spectroscopy, dynamic mechanical analysis (DMA) and tensile testing. The results showed that crosslinked SMPUs have better thermal and thermomechanical properties than those prepared from linear polyurethanes and display good shape memory effects.
Original languageEnglish
Pages (from-to)854-859
Number of pages6
JournalPolymer International
Issue number5
Publication statusPublished - 1 May 2005


  • Crosslinked
  • Mechanical properties
  • Polyurethane
  • Shape memory
  • Shape memory behavior
  • Thermomechanical properties

ASJC Scopus subject areas

  • Polymers and Plastics


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