Swelling behavior and diffusion studies of high-water-retaining acrylamide/potassium methacrylate hydrogels

Murali Yallapu, P. S.Keshava Murthy, K. Madhusudana Rao, J. Sreeramulu, K. Mohana Raju

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Poly(acrylamide-co-potassium methacrylate) hydrogels were prepared by free-radical simultaneous polymerization with aqueous solutions of acrylamide (AAm) and potassium methacrylate (KMA) with a redox initiator. The copolymerization was performed with eight different compositions of KMA at a fixed concentration of oil-soluble crosslinkers, including 1,4-butanediol diacrylate and ethylene glycol dimethacrylate (EGDMA). For every composition of AAm/KMA copolymer, the percentage swelling, swelling equilibrium, and diffusion characteristics were investigated. The copolymers were further studied for deswelling prop erties. The power law relationships of the hydrogels were evaluated for variation in terms of saline concentration. The AAm/KMA copolymers were confirmed by IR spectroscopy. Thermal studies of hydrogels were performed with differential scanning calorimetry and thermogravimetric analysis. EGDMA was found to be a better crosslinker for obtaining higher swelling and deswelling properties for the AAm/KMA hydrogels.

Original languageEnglish (US)
Pages (from-to)1153-1164
Number of pages12
JournalJournal of Applied Polymer Science
Volume96
Issue number4
DOIs
StatePublished - May 15 2005
Externally publishedYes

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Hydrogels
Methacrylates
Acrylamide
Swelling
Potassium
Copolymers
Water
Ethylene glycol
Polyacrylates
Chemical analysis
Free radicals
Copolymerization
Free Radicals
Thermogravimetric analysis
Differential scanning calorimetry
Infrared spectroscopy
Oils
Polymerization
ethylene dimethacrylate

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Swelling behavior and diffusion studies of high-water-retaining acrylamide/potassium methacrylate hydrogels. / Yallapu, Murali; Murthy, P. S.Keshava; Rao, K. Madhusudana; Sreeramulu, J.; Raju, K. Mohana.

In: Journal of Applied Polymer Science, Vol. 96, No. 4, 15.05.2005, p. 1153-1164.

Research output: Contribution to journalArticle

Yallapu, Murali ; Murthy, P. S.Keshava ; Rao, K. Madhusudana ; Sreeramulu, J. ; Raju, K. Mohana. / Swelling behavior and diffusion studies of high-water-retaining acrylamide/potassium methacrylate hydrogels. In: Journal of Applied Polymer Science. 2005 ; Vol. 96, No. 4. pp. 1153-1164.
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