Stimuli-Responsive Helical Poly(phenylacetylene)s Bearing Cyclodextrin Pendants that Exhibit Enantioselective Gelation in Response to Chirality of a Chiral Amine and Hierarchical Super-Structured Helix Formation

DOI Web Site 被引用文献8件 参考文献100件
  • Hiroaki Mochizuki
    Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan
  • Eiji Yashima
    Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan
  • Katsuhiro Maeda
    Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan
  • Keiko Osato
    Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan

書誌事項

公開日
2011-04-11
資源種別
journal article
DOI
  • 10.1021/ma200537p
公開者
American Chemical Society (ACS)

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説明

Novel poly(phenylacetylene)s bearing a β-cyclodextrin (CyD) residue connected to the phenyl ring through an ester (poly-2β) and an ether linkage (poly-3β) as well as an amide linkage (poly-1β) were synthesized and their chiroptical properties were investigated with circular dichroism (CD) and absorption spectroscopies. The chiroptical studies demonstrated that the linkage groups play an important role in the conformational change induced by external chiral and achiral stimuli, such as temperature, solvent, and interactions with a chiral amine. Poly-1β and poly-2β showed a unique enantioselective gelation in response to the chirality of a chiral amine, and the polymers further formed hierarchical superstructured helical assemblies on a micrometer scale with a controlled helix sense, as evidenced by the scanning electron microscopy observations.

収録刊行物

  • Macromolecules

    Macromolecules 44 (9), 3217-3226, 2011-04-11

    American Chemical Society (ACS)

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