文章基本信息

标题：The pre-melt phase of n-alkanes: Crystallographic evidence for a kinked chain structure
本地全文：下载
作者：D. L. Dorset ; B. Moss ; J. C. Wittmann 等
期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：1984
卷号：81
期号：6
页码：1913-1917
DOI：10.1073/pnas.81.6.1913
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：Electron diffraction measurements on epitaxially grown crystals of orthorhombic n-hexatriacontane, n-C36H74, give evidence for the chain-defect mechanism for linear chain melting. The derived structural model is also in accord with recent spectroscopic studies of odd-chain n-alkanes, and the diffraction data specifically exclude models based on helices or rigid chain rotors. Stability of a kinked chain structure, moreover, is indicated by an observed hysteresis effect that gives different pretransition temperatures for solution-grown and annealed crystals.
关键词：phase transition ; paraffin chain melting ; lipid α-phase ; kinked chain ; electron diffraction