期刊
MATERIALS LETTERS
卷 63, 期 3-4, 页码 347-349出版社
ELSEVIER
DOI: 10.1016/j.matlet.2008.10.014
关键词
PDLLA Diols; Butanediamine; Characterization; Polymers; Shape memory materials
资金
- Eleven-Five National Science and Technology Support Program of China [2006BA103B04]
- Natural Key Science and Technology Programmes of Chongqing [CSTC 2008AB0027]
A novel poly(urethane-urea) shape memory polymer (PUU SMP) was synthesized from poly(DL-lactic acid) (PDLLA) Diols, hexamethylene diisocyanate(HDI) and butanediamine(BDA), aiming to develop a biodegradable and biocompatible shape memory polymer. Its structure, thermal properties and shape-memory behaviors were characterized through Fourier transform infrared spectrometry (FTIR), differential scanning calorimetry (DSC) and bending test. The results showed that the response temperature for shape memory of PDLLA-PUU SMP is dependent on the polymeric glass transition temperature and this polymer has an excellent shape memory effect, having the ratio of the shape-memory fixation approximately 100% and the ratio of the shape-memory recovery about 98%. (C) 2008 Published by Elsevier B.V.
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