Adaptation of calorimetry laboratory for studies of homogeneous and heterogeneous systems

• Grant number: 95/04543-9
• Support Opportunities: Research Projects - Thematic Grants
• Start date: March 01, 1996
• End date: May 31, 1999
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
• Principal Investigator: Claudio Airoldi
• Grantee: Claudio Airoldi
• Host Institution: Instituto de Química (IQ). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated research grant(s): 98/05270-4 - Calorimetric evidence for a complex aggregation process of ethylene oxide-propylene oxide block capolymers in water., AR.EXT; 98/05451-9 - Thermochemistry of the intercalation of alpha, beta, and gamma picolines into crystalline titanium hydrogenphosphate., AR.EXT; 96/04764-8 - Calorimetry of n-alkyldiamines intercalated into alfa-titanium hydrogenphosphate., AR.EXT; 96/04432-5 - Calorimetric investigation of additive effects on the cloud points of aqueous solutions of eo/po/eo block copolymers., AR.EXT

Abstract

This plan is aimed at the application of calorimetry to various systems, with special focus aimed at the heterogeneous system, with the objective of obtaining interactive thermodynamic results. Among the aspects to be explored we have: a) immobilization of molecules in silica gel; b) intercalation in inorganic lamellar compounds; c) organic probes in clays and double hydroxides; d) bioactive compounds in biological systems and f) interaction of solutions of surfactant polymers. The calorimetric technique will depend on the type of interaction. For small quantities of sample and slow reactions microcalorimetry will be used. For heterogeneous systems adjustment to models will be sought, which make it possible to calculate and correlate thermodynamic properties, with those obtained through other techniques. (AU)