Local order in liquid n-alkanes:: Evidence from Raman spectroscopic study

被引：45

作者：

Brambilla, L ^{[1
]}

Zerbi, G ^{[1
]}

机构：

[1] Politecn Milan, Ctr Excellence Nanostruct Mat & Surface Engn, NEMAS Nanoengn Mat & Surfaces, Dipartimento Chim Mat & Ingn Chim Giulio Natta, I-20133 Milan, Italy

来源：

MACROMOLECULES | 2005年 / 38卷 / 08期

关键词：

D O I：

10.1021/ma047390k

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The study of the temperature-dependent Raman spectra of n-alkanes from the solid through melting and in the melt phase reveals that short intermolecular correlation can occur in the melt forming at T-m and just above T-m a sizable concentration of extended trans C-C bonds sequences. The mean length of these trans sequences is not less than approximately 5 units. The implications of these observations regarding the mechanism of crystallization of n-alkanes are discussed.

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页码：3327 / 3333

页数：7

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