Controlled release of fragrances from polymers I. Thermodynamic analysis
نویسنده
چکیده
The feasibility of preparation of novel controlled release systems for the delivery of fragrances was investigated. The thermodynamic interactions of model substances which are typical constituents of fragrances with various copolymers were analyzed in the presence of a surrounding fluid. Conditions of favorable release were established by estimating the fragrance partition coefficient. Infinite dilution Flory interaction parameters of various fragrances in contact with a polymer or a surrounding fluid were determined. Generalized expressions were derived for the liquid lattice site sizes of various fragrance compounds.
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