It can be inferred from activation energy that asphaltine is a complicated mixture formed with different molecular weights.
由活化能可推测出沥青质是由不同分子量组成的复杂混合物。
Under the same experimental conditions, the polymers with different molecular weights were obtained by using different solvents.
且在同样的实验条件下，用不同的溶剂获得的聚合物的分子量不同。
The influence of different molecular weights, crystallization behavior and branched chain structures on hard elastic behavior of PE cast films was investigated.
我们分别考察了不同分子量大小、不同结晶行为和不同支链结构对PE流延基膜硬弹性的影响。
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