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Issue 3, 2020
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A facile preparation strategy of polycaprolactone (PCL)-based biodegradable polyurethane elastomer with a highly efficient shape memory effect

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Abstract

We report an efficient and environment-friendly method of synthesizing biodegradable, shape memory polyurethanes via a catalyst-free polymerization process. Two different polyurethanes (poly(PCL-1,4-butanediol-urethane) PCBU and poly(PCL-5,5′,6,6′-tetrahydroxy-3,3,3′,3′-tetramethyl-1,1′-spirobisindane-urethane) PCTU) were composed by the soft segment of polycaprolactone diol and the hard segment of non-planar ring structure/hexamethylene diisocyanate. The polyurethane products obtained were confirmed by FTIR spectroscopy and Atomic Force Microscopy (AFM). PCTU and PCBU exhibited a shape fixation rate of 99.3% and 91.1% and shape recovery rate of 98.3% and 85.1%, respectively during a triple-shape memory procedure. Notably, these PUs had superior biodegradability in buffer solution without enzyme catalysis and the biodegradation weight loss ratio of the PCBU reached 48% within 3 months in the buffer solution.

Graphical abstract: A facile preparation strategy of polycaprolactone (PCL)-based biodegradable polyurethane elastomer with a highly efficient shape memory effect

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Article information


Submitted
14 Oct 2019
Accepted
09 Dec 2019
First published
10 Dec 2019

New J. Chem., 2020,44, 658-662
Article type
Letter

A facile preparation strategy of polycaprolactone (PCL)-based biodegradable polyurethane elastomer with a highly efficient shape memory effect

Q. Luo, J. Chen, P. Gnanasekar, X. Ma, D. Qin, H. Na, J. Zhu and N. Yan, New J. Chem., 2020, 44, 658
DOI: 10.1039/C9NJ05189A

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