Formation and characterization of inclusion complexes of poly(butylene succinate) with alpha- and gamma-cyclodextrins.
The inclusion complexes (ICs) of alpha- and gamma-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 13C nuclear magnetic resonance (NMR) spectroscopy, and solution 1H 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.
Dong
Tungalag
T
Department of Biomolecular Engineering, Tokyo Institute of Technology, Nagatsuta 4259-B-55, Midori-ku, Yokohama 226-8501, Japan.
He
Yong
Y
Shin
Kyung-moo
KM
Inoue
Yoshio
Y
D002072:Butylene Glycols / Q000737:chemistry*; D002152:Calorimetry, Differential Scanning; D003460:Crystallization; D006860:Hydrogen Bonding; D046911:Macromolecular Substances; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D008968:Molecular Conformation; D015394:Molecular Structure; D008970:Molecular Weight; D012996:Solutions; D017550:Spectroscopy, Fourier Transform Infrared; D014961:X-Ray Diffraction; D047391:alpha-Cyclodextrins / Q000737:chemistry*; D047408:gamma-Cyclodextrins / Q000737:chemistry*
D002072:Butylene Glycols; D046911:Macromolecular Substances; D012996:Solutions; D047391:alpha-Cyclodextrins; D047408:gamma-Cyclodextrins