Journal
RSC ADVANCES
Volume 8, Issue 24, Pages 13474-13481Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ra00894a
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Funding
- One Hundred Talented People of the Chinese Academy of Sciences [Y60707WR04]
- National Basic Research Program (973 Program) [2015CB654705]
- Zhejiang Provincial foundation of Natural Science [LY16B040004]
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In this work, a secondary amine-capped polyaspartic ester (PAE-D230) was synthesized using diethyl maleate and amine-terminated polyether (D230) via Michael addition reaction. By modulating the molar ratio of preliminary amine containing D230 and secondary amine-capped PAE-D230 during the curing process with epoxy precursor E44, we obtained epoxy shape memory polymers with tunable T(g)s(-12-20 degrees C), controllable mechanical properties with tensile stress from 0.8 to 14.1 MPa, tensile modulus from 0.7 to 872.0 MPa, and elongation at break from 45.2 to 195.1%. The influence of the composition of curing components on the thermal properties, thermomechanical, mechanical properties, shape memory effect were systematically studied by DSC, TGA, DMA, tensile-stress measurements.
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