Shape memory polymer (SMP), composites and blends need to be prepared to improve the properties or obtain new functions of SMPs. In this work, we successfully prepared p-coumaric acid-modified water-soluble chitosan (M-Cs) and poly (vinyl alcohol) blended membrane (PVA/M-Cs) by a simple solution casting method to enhance its physico-chemical properties, including water-induced shape memory behavior. M-Cs were synthesized from native chitosan (Cs) using carbodiimide chemistry. After the addition of M-Cs into the PVA polymer matrix, it exhibited better water-induced shape memory behavior and shape recovery ratio reach nearly 100 %. Moreover, the water contact angle value declined after the addition of Cs or M-Cs in to the PVA polymer matrix. Based on these findings, the respective blended membranes will be able to broaden the applications of SMPs in many sectors, especially in the biomedical field, which requires water as the main stimulus.

需要制备形状记忆聚合物（SMP），复合材料和共混物以改善其性能或获得SMP的新功能。在这项工作中，我们通过简单的溶液流延方法成功地制备了对香豆酸改性的水溶性壳聚糖（M-Cs）和聚乙烯醇（VVA）混合膜（PVA / M-Cs），以增强其理化性能，包括水诱导的形状记忆行为。使用碳二亚胺化学方法从天然壳聚糖（Cs）合成M-C。将M-Cs加入到PVA聚合物基体中后，它表现出更好的水诱导形状记忆行为，形状恢复率达到近100％。此外，在向PVA聚合物基质中添加Cs或M-Cs之后，水接触角值降低。根据这些发现，