Superabsorbent Polymer Gels based on Polyaspartic Acid and Polyacrylic AcidSharma S, Dua A and Malik A*
Dyal Singh College, University of Delhi, Lodhi Road, New Delhi, India
- *Corresponding Author:
- Malik A
Dyal Singh College, University of Delhi
Lodhi Road, New Delhi, India
E-mail: [email protected]
Received Date: February 05, 2016; Accepted Date: February 16, 2016; Published Date: February 26, 2016
Citation: Sharma S, Dua A, Malik A (2016) Superabsorbent Polymer Gels based on Polyaspartic Acid and Polyacrylic Acid. J Material Sci Eng 5:235. doi:10.4172/2169-0022.1000235
Copyright: © 2016 Sharma S, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Polymer gels based on polyaspartic acid (PAsp) and polyacrylic acid (PAA) have been synthesised using ethylene glycol dimethylacrylate (diacrylate-EGDMA) and Trimethylolpropane triacrylate (Triacrylate-TMPTA) as cross-linkers. Swelling behaviour of these polymers has been studied in different solutions like glucose, saline and water. The swelling behaviour of these polymers has also been studied under different pH conditions. The swelling capacity has also been analysed under load to have an idea of the gel strength (Absorbency under Load-AUL). Best absorbing characteristics, as indicated by the swelling behaviour, have been observed in case of polymer gels synthesized with EGDMA. Polymers with maximum PAsp have shown maximum superabsorbent properties in case of EGDMA as a cross-linker. However, with TMPTA as a cross-linker molar mass ratio of 1:2 polyaspartic acid: acrylic acid have shown better results. These polymers have better superabsorbent characteristics. TMPTA based polymers have shown better properties under load than EGDMA These polymers can be used as smart polymers for various applications e,g., drug delivery, materials for wound dressings, etc as they have shown varying behaviour in different conditions. The structure of the polymers has been studied by FTIR (Fourier Transform Infrared spectroscopy) and NMR (Nuclear Magnetic Resonance Spectroscopy). The surface morphology has further supported the results.