Crosslinked polyurethanes with shape memory properties

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

doi:10.1002/pi.1785

Crosslinked polyurethanes with shape memory properties

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

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

141 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	854-859
Number of pages	6
Journal	Polymer International
Volume	54
Issue number	5
DOIs	https://doi.org/10.1002/pi.1785
Publication status	Published - 1 May 2005

Keywords

Crosslinked
Mechanical properties
Polyurethane
Shape memory
Shape memory behavior
Thermomechanical properties

ASJC Scopus subject areas

Polymers and Plastics

More information

10.1002/pi.1785

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abstract = "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.",

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AU - Hu, Jinlian

AU - Yang, Zhuohong

AU - Yeung, Lapyan

AU - Ji, Fenglong

AU - Liu, Yequi

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Y1 - 2005/5/1

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AB - 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.

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KW - Mechanical properties

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KW - Shape memory

KW - Shape memory behavior

KW - Thermomechanical properties

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Crosslinked polyurethanes with shape memory properties

Abstract

Keywords

ASJC Scopus subject areas

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