2016 (2) 6
https://doi.org/10.15407/polymerj.38.02.148
Investigation of the structure, thermomechanical and sorption properties of crosslinked polyacrylamide films formed under the influence of constant electric field
L.A. Orel, V.L. Demchenko, S.I. Sinelnikov, L.V. Kobrina, S.V. Riabov
Institute of Macromolecular Chemistry the NAS of Ukraine
48, Kharkivske shose, Kyiv, 02160, Ukraine
Polym. J., 2016, 38, no. 2: 148-152.
Section: Structure and properties.
Language: Ukrainian.
Abstract:
Using UV spectroscopy, X-ray method and thermomechanical analysis, the structural organization, thermomechanical and sorption properties of cross-linked polyacrylamide films, formed under the influence of constant electric field and in the absence of a field have been investigated. The method of wide-angle X-ray revealed that the average distance between Bragg macromolecular chains of cross-linked polyacrylamide films formed under the influence of constant electric field has a tendency to decrease from ~ 4,0 to ~ 3,9 A. The thermomechanical analysis shows that samples being influenced by constant electric field possess higher glass-transition temperature and less ability to strain. It is shown that the action of a constant electric field on polyacrylamide cross-linked films during their formation leads to slowdown of metoprolol desorption from polymer matrix and that is promising in the development of drugs with prolonged effect.
Key words: cross-linked polyacrylamide, a constant electric field, structural organization, thermomechanical properties, metoprolol desorption.
Література
1. Filipcsei G., Feher J., Zrinyi M. Electric field sensitive neutral polymer gels // J. of Molecular Structure. – 2000. – 554. – P. 109–117.
2. Shiga T. and Kurauchi T. Deformation of Polyelectrolyte Gels under the Influence of Electric Field. // J. of Appl. Polym. Sci. – 1990. – 39. – P. 2305–2320.
3. Kudaibergenov S. E., Sigitov V. B., Didukh A. G., Bekturov E. A. and Suleimeno I. E. Behavior of Polyelectrolyte Gels under the Influence of d.c. Electric and Magnetic Fields // Polym. Adv. Technol. – 2000. – 11. – P. 805–809.
4. Shiga T. Deformation and viscoelastic in electric behavior of polymer gels fields // Proc. Japan Acad. – 1998. – 74, Ser. B – P. 6–11.
5. Tanaka T., Nishio I., Sun S-T., Ueno-Nishio S. Collapse of gels in an electric field // Science. –1982. – 218. – P. 467–469.
6. Osada Y., Gong J. Stimuli-responsive polymer gels and their application to chemomechanical systems // Progr. Polym. Sci. –1993. – 18. – P. 187–226.
7. Shiga T., Hirose Y., Okada A., Kurauchi T. Bending of ionic polymer gel caused by swelling under sinusoidally varying electric fields // J. of Appl. Polym. Sci. –1993. – 47, № 1. – P. 113–119.
8. Ловягин А.Н. Универсальный фармацевтический справочник. – М.: ООО ПКФ “БАО”, 2004. – 608 с.