Chemistry & Chemical Technology. – 2015. – Vol. 9, No. 3

Permanent URI for this collectionhttps://ena.lpnu.ua/handle/ntb/29730

The scientific-technical journal

It is the scientific-technical journal in English in Ukraine discussing actual problems of chemistry and chemical technology. Compared with other chemical journals Ch&ChT is publishing materials of both theoretical and practical values in such fields as analytical, general organic, physical and inorganic chemistry; chemistry of high molecular compounds; materials science and engineering; chemical kinetics and catalysis; technology of inorganic substances; technology of organic synthesis products; chemical technology of processing of combustible minerals; processes and apparatus of chemical and food productions; biotechnology and ecology.

Chemistry & Chemical Technology : [the scientific-technical journal] / Lviv Polytechnic National University ; editor-in-chief M. Bratychak. – Lviv : Publishing House of Lviv Polytechnic National University, 2015. – Volume 9, number 3. – P. 261–390, IV : ill.

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Author: search.filters.author.Kulish, ElenaSubject: search.filters.subject.diffusion

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    Study of kinetics of medicinal substances release from chitosan films
    (Publishing House of Lviv Polytechnic National University, 2015) Shurshina, Angela; Kulish, Elena; Lazdin, Roman
    The kinetics of controlled release of medicinal substances from chitosan films has been investigated. Correlation between values of diffusion coefficients and the sedate indicator characterizing diffusion of medicinal substance from a film and shares of medicinal substance connected with a polymeric chain has been established. With the increase in amount of the entered medicinal substance the rate of release of medicines decreases. Досліджено кінетику контрольованого вивільнення лікарських речовин з хітозанових плівок. Встановлено взаємозв‘язок між значеннями коефіцієнту дифузії, показником, що характеризує режим дифузії, та часткою лікарської речовини, зв‘язаної з полімерною матрицею. Показано, що зі збільшенням кількості лікарської речовини швидкість їх вивільнення зменшується.