Journal
MACROMOLECULAR RESEARCH
Volume 26, Issue 11, Pages 1035-1041Publisher
SPRINGER
DOI: 10.1007/s13233-019-7005-8
Keywords
shape memory; thermo-responsive; polyurethane; 1,3,5,7-tetrahydroxyadamantane
Categories
Funding
- Natural Science Foundation of China [51773120]
- Natural Science Foundation of Guangdong [2014A030313559, 2016A030313050, 2017A030310045]
- National Natural Science Foundation of Guangdong Province for Vertical Coordination Project [201642]
- Nanshan District Key Lab for Biopolymers and Safety Evaluation [KC2014ZDZJ0001A]
- Science and Technology Project of Shenzhen City [CYZZ20150827160341635, ZDSYS201507141105130, JCYJ20170412105034748]
- Guangdong Graduate Education Innovation Program for Postgraduate Demonstration Base of Joint Training
- Research Project of Shenzhen University [201518]
- Top Talent Launch Scientific Research Projects of Shenzhen [827-000133]
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As a new type of smart polymers, the shape memory polyurethanes attract increasing attention because of their wide use in various applications. Herein, a serials of novel thermo-responsive shape memory polyurethane networks were developed by chemical cross-linking of polycaprolactone with 1,3,5,7-tetrahydroxyadamantane. The polyurethane networks were characterized in relation to their microstructure, cross-linking density, surface appearance, thermal properties, static and dynamic mechanical properties, and shape memory behavior. It was found that the prepared polyurethane networks can exhibit excellent thermo-responsive shape memory properties at body temperature by controlling the molar ratio of 1,3,5,7-tetrahydroxyadamantane and polycaprolactone. Moreover, the incorporation of 1,3,5,7-tetrahydroxyadamantane substantially improved the mechanical properties of the final polyurethane networks. The versatility of the synthesized polyurethane networks is reflected by its dual- and triple-shape memory performance. It can be anticipated that the synthesized polyurethane networks could be used as smart materials for applications involving shape memory polymers.
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