Immobilization of 2,5‐dimethyl‐4‐benzoyl‐oxypiperidine succinate over polyacrylic acid (PAA) gels. II. Study of quantitative characteristics of immobilization of succinate of 2,5‐dimethyl‐4‐benzoyl‐oxypiperidine over PAA

Shynar Zhumagaliyeva, M. K. Beisebekov, Zharylkasyn A. Abilov

2005

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DOI 10.1002/app.21329
Data confidence 70 medium
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Abstract

Abstract By use of a spectrophotometric method the quantity of binding of medicinal compound [succinate of 2,5‐dimethyl‐4‐benzoyl‐oxypiperidine (AK‐29)], over gels of polyacrylic acid, and liberation of medicinal compound (MC) from the gel phase were investigated. It was established that both concentration and pH dependency of AK‐29 sorption over PAA gels pass through a maximum and increase with increasing degree of gel crosslinking. The yield of MC from the gel phase, depending on the conditions, reaches 80% and accelerates at the change of the aqueous phase to a physiological one. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 96: 1187–1192, 2005