Biodegradable Shape Memory Polyurethanes with Controllable Trigger Temperature

Shu-ying Gu; Xie-feng Gao; Sheng-peng Jin; Liu Yan-liang

doi:10.1007/s10118-016-1795-3

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Biodegradable Shape Memory Polyurethanes with Controllable Trigger Temperature

Papers | Updated：2022-02-21

- Biodegradable Shape Memory Polyurethanes with Controllable Trigger Temperature
- Biodegradable Shape Memory Polyurethanes with Controllable Trigger Temperature
- 高分子科学（英文版） 2016年34卷第6期页码：720-729
- Affiliations：
  
  aSchool of Materials Science and Engineering, Tongji University, Shanghai 201804, China
  b Key Laboratory of Advanced Civil Engineering Materials, Ministry of Education, Tongji University, Shanghai 201804, China
- Author bio：
  
  Gu Shu-ying，E-mail: gushuying@mail.tongji.edu.cn
- Funds：
  
  the National Key Technology R&D Program
- DOI：10.1007/s10118-016-1795-3
  中图分类号：
- 收稿：2015-12-03，
  
  修回：2015-12-19，
  
  录用：2015-12-22，
  
  纸质出版：2016-06
- Accepted：
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Shu-ying Gu, Xie-feng Gao, Sheng-peng Jin, 等. Biodegradable Shape Memory Polyurethanes with Controllable Trigger Temperature[J]. 高分子科学（英文版）, 2016,34(6):720-729.

Shu-ying Gu, Xie-feng Gao, Sheng-peng Jin, et al. Biodegradable Shape Memory Polyurethanes with Controllable Trigger Temperature[J]. 2016, 34(6): 720-729.
Shu-ying Gu, Xie-feng Gao, Sheng-peng Jin, 等. Biodegradable Shape Memory Polyurethanes with Controllable Trigger Temperature[J]. 高分子科学（英文版）, 2016,34(6):720-729. DOI： 10.1007/s10118-016-1795-3.

Shu-ying Gu, Xie-feng Gao, Sheng-peng Jin, et al. Biodegradable Shape Memory Polyurethanes with Controllable Trigger Temperature[J]. 2016, 34(6): 720-729. DOI： 10.1007/s10118-016-1795-3.

摘要

Abstract

A series of random copolymers (PCLAs) were synthesized by ring-opening polymerization of

-lactide (LA) and

-caprolactone (CL) with different molar ratios. PCLA based polyurethanes (PCLAUs) were obtained by chain-extending of PCLA and polytetramethylene ether (PTMEG) with hexamethylene diisocyanate (HDI). All the PCLAUs exhibit good shape memory properties with high shape fixity ratios above 98% and shape recovery ratios above 82% in the first cycle and 91% in the second cycle. PCLAUs with less CL content show faster recovery speed and PCLAUs with more CL content show higher shape recovery ratio. The trigger temperature can be tuned or controlled around body temperature by adjusting the molar ratio of LA to CL. The PCLAUs have potential applications in implant biomedical devices

especially for minimally invasive deployable devices.

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references

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