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Home  >  Journal list  >  Polymer Journal  >  Vol.33  No.3 (2001)  >  pp.242-247

Polymer Journal
<<Previous article Vol.33  No.3 (2001)   pp.242 - 247 Next article>>

Formation of Superstructure Composed of Modified Cyclodextrins as Molecular “Blocks” in Aqueous Solution with Host-Guest Complexation. Correlation of Chemical Structure of Modified Group with Complexation

Keiko Takahashi1), Koichi Imotani1) and Masahiko Kitsuta1)
1) Department of Applied Chemistry, Faculty of Engineering, Tokyo Institute of Polytechnics

ABSTRACT:  N′-tert-Butoxycarbonylmonoamino acid-binding β-CDs (1,2,3,4,5) and α-CD (6) were prepared by DCC coupling. NMR study suggests some of these novel modified CDs that act as host and guest to prefer “pseudo polymer” formation. The length of an arm between the N′-tert-butoxycarbonyl group and C6 position on the glucose ring was that of -NH-Cα-CO-NH-. Modified β-CDs having longer arm form intramolecular rather than intermolecular complexes.


Keyword:
N′-tert-Butoxycarbonylmonoamino Acid-Binding β-Cyclodextrin/ Intermolecular Complex/ NMR Titration/ Hybrid Complexation/ Molecular Blocks

Published online: April 09, 2005
© Copyright, 2005 by The Society of Polymer Science, Japan

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