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ＤＳＣ的研究表明ＬＬＤＰＥ高分子量线形分子结晶时，短支化链的链节不参与共晶。当ＬＬＤＰＥ／ＬＤＰＥ共混物淬冷或快速结晶时，ＬＬＤＰＥ中的线形分子可与ＬＤＰＥ中长支化链的链节产生共晶，其熔融单峰较宽，峰位随ＬＬＤＰＥ含量增加而稍向高温移动。在熔体分步结晶时，观察到此共混物的熔融双峰：高温峰仍与ＬＬＤＰＥ的含量有关，但低温峰与ＬＬＤＰＥ的含量无关。因此可认为是ＬＬＤＰＥ线形分子从ＬＤＰＥ支化分子的熔体中结晶时，二者可以产生共晶；反之，ＬＤＰＥ结晶时不产生共晶。
DSC studies show that LLDPE high molecular weight linear molecular crystallization, short chain links do not participate in eutectic. When the LLDPE / LDPE blends quench or rapidly crystallize, the linear molecules in the LLDPE can form cocrystals with the long-chain branches in the LDPE. The melting peak is broad with the peak position slightly increasing with increasing LLDPE content High temperature movement. Melting bimodal melting of this blend was observed during melt fractional crystallization: the high temperature peak was still related to the content of LLDPE, but the low temperature peak was independent of the content of LLDPE. Therefore, it can be considered that when LLDPE linear molecules are crystallized from the melt of LDPE branching molecules, both can produce eutectic; on the other hand, no eutectic is produced when LDPE is crystallized.