The present invention discloses the fabrication and application of a shape memory polymer possessing transesterification-induced permanent reshaping. The ester-containing crosslinked polymer is obtained by crosslinking ester bearing polymer precursors or by reaction of monomers which yield ester bonds. The transition temperature falls between 20-150° C. The reshaping temperature is tuned by catalyst amount and should be 20° C. above the transition temperature. The breakthrough of the present invention lies in integrating shape memory effect and plastic deformation into the same polymer and triggering the respective function at different occasions. The permanent shape of as synthesized polymer could be modified arbitrarily and cumulatively. Therefore, the hierarchical structure which could not otherwise be obtained due to the limit of mold fabrication process should expand the practical application of SMPs.
本发明公开了一种形状记忆聚合物的制造和应用,这种聚合物具有酯化诱导的永久重塑特性。含酯交联聚合物是通过交联含酯聚合物前体或单体反应生成酯键而获得的。转变温度介于 20-150 摄氏度之间。重塑温度由催化剂用量调节,应高于转变温度 20 摄氏度。本发明的突破在于将形状记忆效应和塑性变形整合到同一种聚合物中,并在不同场合触发各自的功能。合成聚合物的永久形状可任意累积改变。因此,由于模具制造工艺的限制而无法获得的分层结构应能扩大
SMP 的实际应用。