The unique features of shape-memory polymers enables their use in minimally invasive surgical procedures with a compact starting material switching over to a voluminous structure in vivo. In this work, a series of transparent, thermoset (meth)acrylate shape-memory polymer networks with tailored thermomechanics have been synthesized and evaluated. Fundamental trends were established for the effect of the crosslinker content and crosslinker molecular weight on glass transition temperature, rubbery modulus and shape-recovery behavior, and the results are intended to help with future shape-memory device design. The prepared (meth)acrylate networks with high transparency and favorable biocompatibility are presented as a promising shape-memory ophthalmic biomaterial.
基金:
Key Program for Panel Display of 863 Program of ChinaNational High Technology Research and Development Program of China [2008AA03A318]; National Natural Science FoundationNational Natural Science Foundation of China (NSFC) [50973010]; National Key Technology ProgramNational Key Technology R&D Program [2007BAE31B00]; Scientific Plan of Beijing City [D090803044209001]; Beijing Natural Science FoundationBeijing Natural Science Foundation [2102021]