關鍵字查詢 | 類別:期刊論文 | | 關鍵字:Mesophases induced by hydrogen bonds between non-mesogens A di-proton acceptor and proton donors

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1 81/1 化學系 余良杰 教授 期刊論文 發佈 Mesophases induced by hydrogen bonds between non-mesogens A di-proton acceptor and proton donors , [81-1] :Mesophases induced by hydrogen bonds between non-mesogens A di-proton acceptor and proton donors期刊論文Mesophases induced by hydrogen bonds between non-mesogens A di-proton acceptor and proton donors非液晶質經氫鍵誘導之液晶相 : 雙質子接受者及質子提供者Yu, L. J.; Pan, J. S.淡江大學化學學系Taylor & FrancisLiquid Crystals 14(3), pp.829-835A non-mesogen, consisting of two stilbazole moieties as proton accepting end groups linked by a triethylene glycol unit, was synthesized. Monotropic smectic B phases were observed for mixtures with nonanoic acid up to tetradecanoic acid as proton donors. Enantiotropic nematic and, in some cases, monotropic smectic A phases were observed with 4-methyl-, 4-methoxy- and 4-halo-benzoic acids as proton donors. The stability of the induced mesophases decreased with 3- and 2-substituted benzoic acids. No mesophase was observed with aliphatic dicarboxylic acids as donors. The results are explained on the basis of the nature and molecular interactions involving the constituent molecules.tku_id: 000
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