Abstract
In this study, a series of novel shape memory polyurethanes (SMPUs) containing tertiary amine groups are prepared by designing hexamethylene diisocyanate (HDI)–N-methyldiethanolamine (MDEA) as soft segments and HDI-BDO as hard segments. The structure and properties of the MDEA-based SMPUs are investigated using FT-IR, NMR, DSC, TGA, DMA, POM and AFM. The results demonstrate that the MDEA-based SMPU is composed of an amorphous soft phase and hard phase. The hard phase is amorphous below 20 wt% hard segment content (HSC), whereas the HDI-BDO segments form a semi-crystalline hard phase above 30 wt% HSC. This morphology exhibits good thermally induced SMEs with 100 % shape fixity and more than 80 % shape recovery. Moreover, the MDEA-based polyurethanes are expected to be further multifunctionalized for antibacterial activity, biocompatibility, multi-responsiveness and many other properties. This work provides a new strategy for designing multifunctional shape memory polymers with amine-containing polyurethanes.
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Acknowledgements
The authors gratefully acknowledge the financial support provided by the National Natural Science Foundation of China (Grant No.21571131), the Natural Science Foundation of Guangdong (Grant Nos. 2014A030313559, 2014A030311028, 2016A030313050), the Special Research Foundation of Shenzhen Overseas High-level Talents for Innovation and Entrepreneurship (Grant No. KQCX20120807153115869), the Nanshan District Key Lab for Biopolymers and Safety Evaluation (No. KC2014ZDZJ0001A), and the Science and Technology Project of Shenzhen City (Grant Nos. JCYJ20140828163633993, CYZZ20150827160341635, XCL201110060, ZDSYS20140430164957665, ZDSYS201507141105130).
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This study was funded by the National Natural Science Foundation of China (Grant No.21571131), the Natural Science Foundation of Guangdong (Grant Nos. 2014A030313559, 2014A030311028, 2016A030313050), the Special Research Foundation of Shenzhen Overseas High-level Talents for Innovation and Entrepreneurship (Grant No. KQCX20120807153115869), the Nanshan District Key Lab for Biopolymers and Safety Evaluation (No. KC2014ZDZJ0001A), and the Science and Technology Project of Shenzhen City (Grant Nos. JCYJ20140828163633993, CYZZ20150827160341635, ZDSYS20140430164957665, XCL201110060 ZDSYS201507141105130).
Conflict of interest
Prof. Shaojun Chen has received research grants from the Natural Science Foundation of Guangdong (Grant No. 2014A030313559, 2014A030311028, 2016A030313050), the Special Research Foundation of Shenzhen Overseas High-level Talents for Innovation and Entrepreneurship (Grant No. KQCX20120807153115869), the Nanshan District Key Lab for Biopolymers and Safety Evaluation (No. KC2014ZDZJ0001A), and the Science and Technology Project of Shenzhen City (Grant Nos. JCYJ20140828163633993, CYZZ20150827160341635, XCL201110060, ZDSYS201507141105130, ZDSYS20140430164957665,). Dr. Haitao Zhuo has received research grants from the National Natural Science Foundation of China (Grant No.21571131). The authors declare that they have no conflict of interest.
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Ren, H., Mei, Z., Chen, S. et al. A new strategy for designing multifunctional shape memory polymers with amine-containing polyurethanes. J Mater Sci 51, 9131–9144 (2016). https://doi.org/10.1007/s10853-016-0166-3
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DOI: https://doi.org/10.1007/s10853-016-0166-3