The crystallinity of polyethylene decreased with increase of content of short branched chain methyl.
聚乙烯随着短支链甲基含量的增加，结晶度降低。
2
These catalyst systems are generally used to produce polyolefins having broad molecular weight distributions, especially polyethylene. Some systems are used to produce branched or block polymers.
The morphology of nascent polymer powder shows strip structure by scanning electron microscope. Branched content, crystallinity and crystallite size are similar to those of high density polyethylene.