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- W4366331414 abstract "Abstract Poly(ε-caprolactone) (PCL)-based semi-crystalline polymer are shape memory materials that has been extensively used in the biomedical field. Despite the large number of studies aimed at constructing the well-defined crosslinked polymer networks, detailed investigations of properties in terms of structural factors at the molecular level that influence the thermal-mechanical and shape memory properties are still poorly understand and investigated. In this work, PCL crosslinked networks with different molecular weight of diacrylate PCL prepolymers (M n ) are prepared via base-catalyzed Michael addition. The results indicate that the overall melting temperature, the crystallization temperature and the crystallinity of the networks exhibit an upward trend with increment of M n . Besides that, the tensile strength and shape memory performance are also correlated with M n . Controlled-strain DMA characterization on shape memory properties show that the cPCL-10000 network exhibits the most remarkable shape fixity and shape recovery ratio, indicative of lowering cross-linking density and chains mobility. In particular, editable shape memory properties can also be achieved by triggering transesterification within the same polymer network, and a possible molecular mechanism responsible for the elasticity-based shape memory effect and plasticity-based permanent shape reconfigurability is proposed and combined to present the shape-morphing behaviors." @default.
- W4366331414 created "2023-04-20" @default.
- W4366331414 creator A5014200103 @default.
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- W4366331414 date "2023-04-18" @default.
- W4366331414 modified "2023-09-27" @default.
- W4366331414 title "Synthesis and Characterization of Shape Memory Poly (ε-caprolactone) networks with Programmable and Reconfigurable Shape-Morphing Behaviors" @default.
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- W4366331414 doi "https://doi.org/10.21203/rs.3.rs-2773961/v1" @default.
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