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Formation and Characterization of Inclusion Complexes of Poly(butylene succinate) with α ‐ and γ ‐Cyclodextrins
Author(s) -
Dong Tungalag,
He Yong,
Shin Kyungmoo,
Inoue Yoshio
Publication year - 2004
Publication title -
macromolecular bioscience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.924
H-Index - 105
eISSN - 1616-5195
pISSN - 1616-5187
DOI - 10.1002/mabi.200400054
Subject(s) - differential scanning calorimetry , chemistry , fourier transform infrared spectroscopy , nuclear magnetic resonance spectroscopy , molecule , infrared spectroscopy , crystallography , spectroscopy , hydrogen bond , polymer chemistry , proton nmr , stereochemistry , organic chemistry , chemical engineering , physics , quantum mechanics , engineering , thermodynamics
Summary: The inclusion complexes (ICs) of α ‐ and γ ‐cyclodextrins (CDs) with high‐molecular‐weight poly(butylene succinate) (PBS) were prepared and characterized by differential scanning calorimetry, Fourier‐transform infrared spectroscopy (FT‐IR), wide‐angle X‐ray diffraction, solid‐state 13 C nuclear magnetic resonance (NMR) spectroscopy, and solution 1 H NMR spectroscopy. The resultant ICs were found to have channel structures. FT‐IR data suggested that the ICs were stabilized by hydrogen bonds between the host CD molecules and the guest PBS chains. Through the formation of ICs, the PBS chain possibly adopts the kink conformation in the included state, as indicated by NMR analysis.Experimental and curve‐fitting FT‐IR spectrum of α ‐CD‐PBS IC in the carbonyl region (s, ν CO ).