Poly(methacrylamide-co-acrylic acid) hydrogels for gastrointestinal delivery of theophylline. I. Swelling characterization
β Scribed by Seema Dubey; S. K. Bajpai
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 231 KB
- Volume
- 101
- Category
- Article
- ISSN
- 0021-8995
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The purpose of this investigation was to define the polymer structure and elucidate the swelling behavior of ionizable hydrophilic polymers (hydrogels) in water and buffered media. Poly(acry1ic acid) (PAA) and poly(acry1ic acid-co-2-hydroxyethyl methacrylate) [P(AA-co-HEMA)] hydrogels were synthesiz
## Abstract The swelling behavior of poly (acrylamideβ__co__βmaleic acid) hydrogels has been investigated in distilled water at 30Β°C. The gels were characterized with respect to structural parameters, Fourier transform infrared, and thermogravimetric analysis. The gels showed fair pHβdependent swel