Study of Swelling Properties and Thermal Behavior of Poly(N,N-Dimethylacrylamide-co-Maleic Acid) Based Hydrogels
Joint Authors
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-07-22
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Hydrogels copolymers N,N-dimethylacrylamide (DMA) and maleic acid (MA) were prepared by free-radical polymerization at 56°C in aqueous solution, using N,N-methylenebisacrylamide (NMBA) as cross-linking agent and potassium persulfate (KPS) as initiator.
The effects of comonomer composition, cross-linker content, and variation of pH solutions on the swelling behavior of polymers were investigated.
The obtained results showed an increase of the swelling of poly(N,N-dimethylacrylamide-co-maleic acid) (P(DMA-MAx)) as the content of maleic acid increases in the polymeric matrix, while they indicate a great reduction of the degree of swelling as the cross-linking agent ratio increases.
It was also shown that the swelling of copolymer hydrogels increased with the increase of pH and the maximum extent was reached at pH 8.7 in all compositions.
Fourier transform infrared spectroscopy (FTIR) revealed the existence of hydrogen bonding interactions between the carboxylic groups of MA and the carbonyl groups of DMA.
Differential scanning calorimetry analysis (DSC) showed an increase of the glass-transition temperature (Tg) as concentrations of MA and NMBA increased.
Thermogravimetric analysis (TGA) of copolymers was performed to investigate the degradation mechanism.
American Psychological Association (APA)
Bennour, Sadjia& Louzri, Fatma. 2014. Study of Swelling Properties and Thermal Behavior of Poly(N,N-Dimethylacrylamide-co-Maleic Acid) Based Hydrogels. Advances in Chemistry،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-449509
Modern Language Association (MLA)
Bennour, Sadjia& Louzri, Fatma. Study of Swelling Properties and Thermal Behavior of Poly(N,N-Dimethylacrylamide-co-Maleic Acid) Based Hydrogels. Advances in Chemistry No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-449509
American Medical Association (AMA)
Bennour, Sadjia& Louzri, Fatma. Study of Swelling Properties and Thermal Behavior of Poly(N,N-Dimethylacrylamide-co-Maleic Acid) Based Hydrogels. Advances in Chemistry. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-449509
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-449509