Urethane based Elastomeric Networks with Exceptional Shape Memory Recovery under Physiological Temperature Stimuli
발표자
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초록
내용
Stimuli-responsive and resilient polymer materials have been developed thus far to meet burgeoning demands for biomedical application. However, reported shape-memory materials have exhibited inferior mechanical, shape-memory properties and non-biocompatibility due to alloy materials. In this study, we aimed at synthesizing a series of environmental urethane-based elastomers with outstanding mechanical property. Four different block copolymers (BCPs) were synthesized and their chemical, physical, surface, and shape-memory properties were characterized. With exceptional mechanical property (break strain >2000 %), first and ever introduction of cross-linkable ‘Hydroxyethyl Acrylate (HEA)’ into elastomer shows of improvements in reversible shape-memory effects within a few seconds. The strategy reported herein with improved shape-memory properties can be leveraged to boost the commercialization of stimuli-responsive polymers and smart materials for biomedical application.