Polymer-Cyclodextrin Inclusion Compounds: Toward New Aspects of Their Inclusion Mechanism

摘要

#alpha#-Cyclodextrin inclusion compounds were prepared inthe presence of a polymer and a small molecule model for the polymer repeat unit. By means of this technique, we are able to demonstrate that #alpha#-cyclodextrin prefers the inclusion of the longer molecular chain guest. Comparison of the cyclodextrin inclusion compounds formed with poly(implied by-caprolactone) and hexanoic acid, separately and from solution containing both poly(implied by-capolactone) and hexanoic acid invaying amounts, enables us to draw certain conclusions concnerning both the thermodynaic andkinetic aspects of poly(implied by-caprolactone)-#alpha#-cyclodextrin inclusion compuonds formation. Differential scanning calorimetry, fourier transform infrared, and wide-angle X-ray diffraction have been used to verify the formation and successfully characretize all inclusion compounds