形状记忆聚合物是近几年出现的新材料。它在一般温度条件下,可以任意改变形状,但只要超过一定的温度,它又立即恢复原状,似对自己的原形有记忆,可能因此得名。法国和日本的研究人员新近联合研制出一种形状记忆聚合物,其分子量在300万以上。这种材料是粒径在0.8毫米以下的多孔质粉末,在150℃左右注模成型,制成固体材料。由于它是由多孔质粉末组成,因此与油有很好的相溶性。如将粉末状的聚合物放在带油的水中,它就会象 Shape memory polymers have emerged as new materials in recent years. Under normal temperature conditions, it can be any shape change, but as long as more than a certain temperature, it immediately restore the status quo, it seems to have their own memory of the prototype, may therefore be named. Researchers in France and Japan have recently jointly developed a shape memory polymer with a molecular weight of more than 3 million. This material is a porous powder with a particle size of 0.8 mm or less and is injection molded at about 150 ° C to form a solid material. Because it is composed of porous powder, it has a good compatibility with the oil. If the powdered polymer in oil with water, it will be like