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本帖产生 1 个 PEPI ，点击这里进行查看

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touchhappy

金虫 (著名写手)

PEPI: 30
应助: 49 (小学生)
金币: 1367.9
散金: 605
红花: 95
帖子: 1650
在线: 520.5小时
虫号: 924145
注册: 2009-12-09
性别: MM
专业: 高分子物理与高分子物理化

【答案】应助回帖

★ ★ ★ ★ ★
感谢参与，应助指数 +1
zznjut(金币+5, PEPI+1): I am pleased to advise that you will be granted with a PEPI! Another thing I have to say is that which is the most possible reason?How to rule out other factors? 2012-02-06 18:36:34

the possible origin of the multiple melting endotherms can be
summarized as follows: (1) melting, recrystallization, or reorganization and remelting during the heating process, (2) existence of at least two crystal modifications (polymorphism), (3) differences in morphology (such as lamellar thickness, distribution, perfection, or stability), (4) physical aging and/or relaxation of the rigid amorphous fraction, (5) different molecular weight species, and so on