DSC analysis showed that polyethylene with higher branchingdegree had lower melting point when relative molecular masses of the polymers were approximate.
差示扫描量热分析结果表明，当相对分子质量相差不大时，支化度较高的聚乙烯具有较低的熔点。
2
Branchingdegree of the polyethylenes and the content of methyl branch rise quickly with reaction temperature, but the content of long branches drops remarkably.
随着温度的升高聚乙烯产物支化度和甲基支链含量都迅速增加，长支链含量则显著下降。
3
The rheological behaviors of agarose derivatives with different branching chains, degree of substitute and gelling temperature were studied.