上海大学开发出一种分子链排列有序的聚对苯二甲酸乙二醇酯制备新方法。该方法采用溶剂浇铸法,将普通PET在一定温度下溶解于三氟乙酸,经过高速剪切作用,并沉积于丙酮中,PET分子链中乙基构型从无定形的旁氏结构变为反式结构,从而导致PET分子链排列方式发生重组,从链卷曲状变为直链状,形成链 Shanghai University has developed a new molecular chain ordered polyethylene terephthalate preparation. The method uses a solvent casting method, the ordinary PET at a certain temperature dissolved in trifluoroacetic acid, after high-speed shear and deposited in acetone, PET molecular chain ethyl configuration changes from amorphous Pond’s structure to trans Structure, resulting in the reorganization of PET molecular chain arrangement, from the chain curl into a straight chain, the formation of chain