低等规聚丙烯的研制——Ⅰ.低等规聚丙烯的微观结构和性能

The Study on Low Isotactic PolypropyleneⅠ. Microstructure and Properties of LIPP

采用低等规聚丙烯(LIPP)催化剂制得LIPP,并测定其微观结构和性能。结果表明,LIPP是短距有序长距无序的等规和少量间规立体嵌段均聚物,其性能与高等规聚丙烯和副产无规聚丙烯有较大的差别。

This paper analyzed the microstructure and properties of the low isotactic polypropylene (LIPP) prepared with the homemade low isotactic catalyst. The result showed that LIPP was one kind of block homopolymer featured of isotactic and syndiotactic segments with different length and distribution in its molecular chains. And the properties of the polymer were greatly different from those of by - product atactic polypropylene and IPP.