Abstract
Shape memory polymers (SMPs) are currently popular in engineering morphing structures and biomedical applications. In this work, we have synthesized a biodegradable SMP based on poly(ethylene glycol) dimethacrylate (PEGDMA550) as cross-linker, in which tert (butyl acrylate) (tBA) is incorporated as comonomer. The SMP is polymerized by photopolymerization reaction. Further, the macromechanical and thermal properties of the developed SMP are evaluated. Tensile tests have shown that increasing weight content of cross-linker has reduced the elastic modulus significantly. SM properties are characterized by various methods, such as elevated temperature tensile experiments, cyclic thermal mechanical tests, and physical shape recovery tests.
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