Two-Component Gel Formation by Pseudoenantiomeric Ethynylhelicene Oligomers

Authors

  • Ryo Amemiya Dr.,

    1. Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578 (Japan), Fax: (+81) 22-795-6811
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  • Marie Mizutani,

    1. Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578 (Japan), Fax: (+81) 22-795-6811
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  • Masahiko Yamaguchi Prof. Dr.

    1. Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578 (Japan), Fax: (+81) 22-795-6811
    2. WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan)
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  • We thank Masao Ishii (Institute of Multidisciplinary Research for Advanced Materials, Tohoku University) for the scanning electron microscopy measurements. We acknowledge Dr. Haruo Aikawa (Graduate School of Pharmaceutical Sciences, Tohoku University) for the helpful discussions. This work was financially supported by the Japan Society for Promotion of Science (JSPS).

Abstract

original image

Langes, gewundenes Gel: Mischungen aus (M)- und (P)-Ethinylhelicen-Oligomeren (siehe Struktur), die sich in der Zahl der Heliceneinheiten unterscheiden, bilden in Toluol Organogele, deren Thermoreversibilität im Sol-Gel-Prozess besser ist als die von Gelen aus Enantiomeren. Eine Reihe pseudoenantiomerer Oligomere konnte so in Zweikomponentengele überführt werden, sofern es sich bei den Oligomeren mindestens um Tetramere handelte.

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