The structures of the copolymers were characterized by FTIR spectra,and their molecular weights were correspondingly expressed by the intrinsic viscosities obtained with an Ubbelohde viscometer.

• 用红外光谱法对共聚物的结构进行了表征,使用乌氏粘度法测定了特性粘数,相对表示出了共聚物的分子量;