Self-organization of substituted azacrowns based on their discoid and amphiphilic nature

作者: C. Mertesdorf , H. Ringsdorf

DOI: 10.1080/02678298908045686

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摘要: Abstract Cyclame and hexacyclene derivatives, bearing four six long-chain substituents respectively, were synthesized. They are discussed as monolayer-forming amphiphiles well liquid-crystalline-phase-forming thermotropic mesogens. The compounds investigated form ordered monolayers at the gas/water interface. In monolayer hydrophilic cyclic head group lies flat on water surface, whereas hydrophobic oriented perpendicularly with respect to Most derivatives fitted aromatic exhibit a solid condensed state exclusively. contrast this, expanded phases can be found when spreading aliphatic-substituted compounds. latter case, onset of phase transition takes bump-like shape, owing kinetic reasons. A liquid-crystalline columnar order is only achieved hexacyclenes substituents, etherified one alkyl chain. Besides remaining melt from th...

参考文章(18)
Otto Albrecht, Walter Vogt, Bertram Ostermayer, Polymerizable lipid analogues of diacetylenic phosphonic acids. Synthesis, spreading behaviour and polymerization at the gas-water interface Chemistry and Physics of Lipids. ,vol. 41, pp. 265- 291 ,(1986) , 10.1016/0009-3084(86)90026-5
K.A. Suresh, A. Blumstein, F. Rondelez, Langmuir monolayers of mesomorphic monomers and polymers Journal de Physique. ,vol. 46, pp. 453- 460 ,(1985) , 10.1051/JPHYS:01985004603045300
F. Rondelez, J.F. Baret, A.G. Bois, Liquid expanded-liquid condensed phase transition in Langmuir films of discotic molecules Journal de Physique. ,vol. 48, pp. 1225- 1234 ,(1987) , 10.1051/JPHYS:019870048070122500
D. Creed, A. C. Griffin, J. R. D. Gross, C. E. Hoyle, K. Venkataram, Photochemical Crosslinking of Novel Polycinnamate Main Chain Mesogens Molecular Crystals and Liquid Crystals. ,vol. 155, pp. 57- 71 ,(1988) , 10.1080/00268948808070352
H. Diep-Quang, K. Ueberreiter, Monolayers of some liquid-crystal forming compounds Colloid and Polymer Science. ,vol. 258, pp. 1055- 1061 ,(1980) , 10.1007/BF01382402
C. Destrade, Nguyen Huu Tinh, H. Gasparoux, J. Malthete, A. M. Levelut, Disc-Like Mesogens: A Classification Molecular Crystals and Liquid Crystals. ,vol. 71, pp. 111- 135 ,(1981) , 10.1080/00268948108072721
J. Malthête, A.M. Levelut, Nguyen Huu Tinh, Phasmids : a new class of liquid crystals Journal de Physique Lettres. ,vol. 46, pp. 875- 880 ,(1985) , 10.1051/JPHYSLET:019850046018087500
Jean-Marie Lehn, Jacques Malthête, Anne-Marie Levelut, Tubular mesophases: liquid crystals consisting of macrocyclic molecules Journal of The Chemical Society, Chemical Communications. pp. 1794- 1796 ,(1985) , 10.1039/C39850001794