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Mesophases involving highly ordered smectic phases in a polyether

โœ Scribed by Stephen Z. D. Cheng; Yeocheol Yoon; Anqiu Zhang; Edward P. Savitski; Jae-Young Park; Virgil Percec; Peihwei Chu

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
885 KB
Volume
16
Category
Article
ISSN
1022-1336

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โœฆ Synopsis

Abstract

Based on our differential scanning calorimetry observations, a polyether 1 synthesized from 4โ€ฒโ€[2โ€(4โ€hydroxyphenyl)propyl]โ€4โ€biphenylol and 1,9โ€dibromononane shows multiple transition behavior during cooling and heating. Furthermore, these transition temperatures do not exhibit significant supercooling dependence. Detailed analyses of the wideโ€angle Xโ€ray diffraction powder and fiber patterns at different temperatures have indicated that highly ordered smectic F and G phases exist in this polyether and are differentiated from traditional crystalline phases.

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โœ W.U. Mรผller; H. Stegemeyer ๐Ÿ“‚ Article ๐Ÿ“… 1974 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 222 KB

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