Abstract
AbstractAdsorption-desorption studies and Immersional calorimetry were used conjointly to characterize the surface properties of two disintegrants - Ac-Di-Sol and CLD-2. Adsorption-desorption Isotherms were utilized to calculate the Integral and different Gibb's free energies. Non-Isothermal calorimetry was employed to quantify the energies of Interaction between the adsorbate and the adsorbent and obtain the differential enthalpy. These Interactions were determined to be -7.5 and -7.8 kcal per mole for Ac-Di-Sol and CLD-2, respectively. The premature decrease in the differential enthalpies and entropies and the observed immersional and adsorption-desorption hystereses were hypothesized to be the result of an Irreversible swelling process. Differences were observed between CLD-2 and Ac-Di-Sol which were believed to be due to the higher degree of cross-linking In Ac-Di-Sol.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
