一、引言近十年来,在聚合物科学中,嵌段共聚物的研究有着较快的发展。一些结构、分子量大小和分子量分布可控制的聚合物相继出现,其中又以热塑性弹性体最引人注目。最早的热塑性弹性体是1965年合成的一种新的苯乙烯—丁二烯的嵌段共聚物。它无需化学硫化,就具有交联、补强橡胶的特性,同时又能用一般热塑性聚合物的加工方法来加工成制品。热塑性弹性体这一名称也正是由此得来。 First, the introduction of the past decade, in polymer science, block copolymer research has a rapid development. Some structure, molecular weight and molecular weight distribution controllable polymers appeared one after another, among them the most noticeable thermoplastic elastomer. The earliest thermoplastic elastomer was a new styrene-butadiene block copolymer synthesized in 1965. It does not require chemical vulcanization, it has the characteristics of cross-linking, reinforcing rubber, but can also be processed into products with the general thermoplastic polymer processing methods. It is also derived from the name of thermoplastic elastomer.