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Comparison of the swelling kinetics of a partially neutralized poly(acrylic acid) hydrogel in distilled water and physiological solution

Poređenje kinetike bubrenja hidrogela delimično neutralisane poli(akrilne) kiseline u destilovanoj vodi i fiziološkom rastvoru

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2007
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Authors
Kostić, Aleksandar Ž.
Adnađević, Borivoj
Popović, Aleksandar R.
Jovanovic, Jelena
Article (Published version)
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Abstract
The isothermal kinetics Curves of the swelling of a poly(acrylic acid) hydrogel in distilled water and physiological Solution at temperatures ranging from 20 to 40 degrees C were determined. The possibility of applying both the Fick's kinetics model anti kinetics model of the first order chemical reaction to the swelling kinetics of the PAA hydrogel in distilled water and physiological Solution were examined. It was found that the possibilities of applying these models were limited. The new model of the kinetics of swelling in distilled water and physiological solution was established. The kinetic parameters (E-a, ln A) for the swelling in distilled water and physiological solution were determined. The decrease of the equilibrium degree of swelling and the saturation swelling rate of the swelling of the PAA hydrogel in physiological solution compared to swelling in distilled water could be explained by the decreased differences in the ionic osmotic pressures between the hydrogel and th...e swelling medium. The increase of the initial swelling rate in the physiological solution might be caused by an increased density of charges at the network and by an increased affinity of the network towards the water molecules. The increase of the activation energy of the swelling of the PAA hydrogel in the physiological solution is a consequence of its additional "ionic crosslinking".

U radu su ispitivane izotermalne kinetičke krive bubrenja hidrogela delimično neutralisane poli(akrilne) kiseline u destilovanoj vodi i fiziološkom rastvoru u temperaturnom opsegu od 20 do 40 °C. Ispitivana je mogućnost primene Fikovog kinetičkog modela kao i kinetike i reda hemijskih reakcija na kinetiku bubrenja poliakrilnog hidrogela.Utvrđeno je da su mogućnosti za njihovu primenu vrlo ograničene. Iz tih razloga primenjen je novi model kinetike bubrenja. Određeni su kinetički parametri (Ea, lnA) za procese bubrenja u destilovanoj vodi i fiziološkom rastvoru. Smanjenje ravnotežnog stepena bubrenja i saturacione brzine bubrenja hidrogela delimično neutralisane poli(akrilne) kiseline u fiziološkom rastvoru u odnosu na destilovanu vodu može se objasniti smanjenjem razlike u jonskom osmotskom pritisku između hidrogela i medijuma za bubrenje. Povećanje inicijalne brzine bubrenja u fiziološkom rastvoru u odnosu na destilovanu vodu prouzrokovano je povećanjem gustine naelektrisanja na polim...ernoj mreži i povećanim afinitetom prema molekulima vode. Povećanje energije aktivacije hidrogela delimično neutralisane poli(akrilne) kiseline pri bubrenju u fiziološkom rastvoru se objašnjava dodatnim "jonskim umreženjem" hidrogela u fiziološkom rastvoru.

Keywords:
swelling kinetics / kinetics parameters / kinetics parameters / model / model / poly(acrylic acid) hydrogel / poly(acrylic acid) hydrogel
Source:
Journal of the Serbian Chemical Society, 2007, 72, 11, 1139-1153
Publisher:
  • Serbian Chemical Soc, Belgrade
Funding / projects:
  • Fizička hemija dinamičkih stanja i struktura neravnotežnih sistema - od monotone do oscilatorne evolucije i haosa (RS-142025)

DOI: 10.2298/JSC0711139K

ISSN: 0352-5139

WoS: 000251108600012

Scopus: 2-s2.0-35948949182
[ Google Scholar ]
26
25
URI
https://cherry.chem.bg.ac.rs/handle/123456789/892
Collections
  • Publikacije
Institution/Community
Hemijski fakultet
TY  - JOUR
AU  - Kostić, Aleksandar Ž.
AU  - Adnađević, Borivoj
AU  - Popović, Aleksandar R.
AU  - Jovanovic, Jelena
PY  - 2007
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/892
AB  - The isothermal kinetics Curves of the swelling of a poly(acrylic acid) hydrogel in distilled water and physiological Solution at temperatures ranging from 20 to 40 degrees C were determined. The possibility of applying both the Fick's kinetics model anti kinetics model of the first order chemical reaction to the swelling kinetics of the PAA hydrogel in distilled water and physiological Solution were examined. It was found that the possibilities of applying these models were limited. The new model of the kinetics of swelling in distilled water and physiological solution was established. The kinetic parameters (E-a, ln A) for the swelling in distilled water and physiological solution were determined. The decrease of the equilibrium degree of swelling and the saturation swelling rate of the swelling of the PAA hydrogel in physiological solution compared to swelling in distilled water could be explained by the decreased differences in the ionic osmotic pressures between the hydrogel and the swelling medium. The increase of the initial swelling rate in the physiological solution might be caused by an increased density of charges at the network and by an increased affinity of the network towards the water molecules. The increase of the activation energy of the swelling of the PAA hydrogel in the physiological solution is a consequence of its additional "ionic crosslinking".
AB  - U radu su ispitivane izotermalne kinetičke krive bubrenja hidrogela delimično neutralisane poli(akrilne) kiseline u destilovanoj vodi i fiziološkom rastvoru u temperaturnom opsegu od 20 do 40 °C. Ispitivana je mogućnost primene Fikovog kinetičkog modela kao i kinetike i reda hemijskih reakcija na kinetiku bubrenja poliakrilnog hidrogela.Utvrđeno je da su mogućnosti za njihovu primenu vrlo ograničene. Iz tih razloga primenjen je novi model kinetike bubrenja. Određeni su kinetički parametri (Ea, lnA) za procese bubrenja u destilovanoj vodi i fiziološkom rastvoru. Smanjenje ravnotežnog stepena bubrenja i saturacione brzine bubrenja hidrogela delimično neutralisane poli(akrilne) kiseline u fiziološkom rastvoru u odnosu na destilovanu vodu može se objasniti smanjenjem razlike u jonskom osmotskom pritisku između hidrogela i medijuma za bubrenje. Povećanje inicijalne brzine bubrenja u fiziološkom rastvoru u odnosu na destilovanu vodu prouzrokovano je povećanjem gustine naelektrisanja na polimernoj mreži i povećanim afinitetom prema molekulima vode. Povećanje energije aktivacije hidrogela delimično neutralisane poli(akrilne) kiseline pri bubrenju u fiziološkom rastvoru se objašnjava dodatnim "jonskim umreženjem" hidrogela u fiziološkom rastvoru.
PB  - Serbian Chemical Soc, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Comparison of the swelling kinetics of a partially neutralized poly(acrylic acid) hydrogel in distilled water and physiological solution
T1  - Poređenje kinetike bubrenja hidrogela delimično neutralisane poli(akrilne) kiseline u destilovanoj vodi i fiziološkom rastvoru
VL  - 72
IS  - 11
SP  - 1139
EP  - 1153
DO  - 10.2298/JSC0711139K
UR  - Kon_1845
ER  - 
@article{
author = "Kostić, Aleksandar Ž. and Adnađević, Borivoj and Popović, Aleksandar R. and Jovanovic, Jelena",
year = "2007",
abstract = "The isothermal kinetics Curves of the swelling of a poly(acrylic acid) hydrogel in distilled water and physiological Solution at temperatures ranging from 20 to 40 degrees C were determined. The possibility of applying both the Fick's kinetics model anti kinetics model of the first order chemical reaction to the swelling kinetics of the PAA hydrogel in distilled water and physiological Solution were examined. It was found that the possibilities of applying these models were limited. The new model of the kinetics of swelling in distilled water and physiological solution was established. The kinetic parameters (E-a, ln A) for the swelling in distilled water and physiological solution were determined. The decrease of the equilibrium degree of swelling and the saturation swelling rate of the swelling of the PAA hydrogel in physiological solution compared to swelling in distilled water could be explained by the decreased differences in the ionic osmotic pressures between the hydrogel and the swelling medium. The increase of the initial swelling rate in the physiological solution might be caused by an increased density of charges at the network and by an increased affinity of the network towards the water molecules. The increase of the activation energy of the swelling of the PAA hydrogel in the physiological solution is a consequence of its additional "ionic crosslinking"., U radu su ispitivane izotermalne kinetičke krive bubrenja hidrogela delimično neutralisane poli(akrilne) kiseline u destilovanoj vodi i fiziološkom rastvoru u temperaturnom opsegu od 20 do 40 °C. Ispitivana je mogućnost primene Fikovog kinetičkog modela kao i kinetike i reda hemijskih reakcija na kinetiku bubrenja poliakrilnog hidrogela.Utvrđeno je da su mogućnosti za njihovu primenu vrlo ograničene. Iz tih razloga primenjen je novi model kinetike bubrenja. Određeni su kinetički parametri (Ea, lnA) za procese bubrenja u destilovanoj vodi i fiziološkom rastvoru. Smanjenje ravnotežnog stepena bubrenja i saturacione brzine bubrenja hidrogela delimično neutralisane poli(akrilne) kiseline u fiziološkom rastvoru u odnosu na destilovanu vodu može se objasniti smanjenjem razlike u jonskom osmotskom pritisku između hidrogela i medijuma za bubrenje. Povećanje inicijalne brzine bubrenja u fiziološkom rastvoru u odnosu na destilovanu vodu prouzrokovano je povećanjem gustine naelektrisanja na polimernoj mreži i povećanim afinitetom prema molekulima vode. Povećanje energije aktivacije hidrogela delimično neutralisane poli(akrilne) kiseline pri bubrenju u fiziološkom rastvoru se objašnjava dodatnim "jonskim umreženjem" hidrogela u fiziološkom rastvoru.",
publisher = "Serbian Chemical Soc, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Comparison of the swelling kinetics of a partially neutralized poly(acrylic acid) hydrogel in distilled water and physiological solution, Poređenje kinetike bubrenja hidrogela delimično neutralisane poli(akrilne) kiseline u destilovanoj vodi i fiziološkom rastvoru",
volume = "72",
number = "11",
pages = "1139-1153",
doi = "10.2298/JSC0711139K",
url = "Kon_1845"
}
Kostić, A. Ž., Adnađević, B., Popović, A. R.,& Jovanovic, J.. (2007). Comparison of the swelling kinetics of a partially neutralized poly(acrylic acid) hydrogel in distilled water and physiological solution. in Journal of the Serbian Chemical Society
Serbian Chemical Soc, Belgrade., 72(11), 1139-1153.
https://doi.org/10.2298/JSC0711139K
Kon_1845
Kostić AŽ, Adnađević B, Popović AR, Jovanovic J. Comparison of the swelling kinetics of a partially neutralized poly(acrylic acid) hydrogel in distilled water and physiological solution. in Journal of the Serbian Chemical Society. 2007;72(11):1139-1153.
doi:10.2298/JSC0711139K
Kon_1845 .
Kostić, Aleksandar Ž., Adnađević, Borivoj, Popović, Aleksandar R., Jovanovic, Jelena, "Comparison of the swelling kinetics of a partially neutralized poly(acrylic acid) hydrogel in distilled water and physiological solution" in Journal of the Serbian Chemical Society, 72, no. 11 (2007):1139-1153,
https://doi.org/10.2298/JSC0711139K .,
Kon_1845 .

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