Swelling properties of chemically crosslinked poly(acrylamide-co-maleic acid) hydrogels

Murali Yallapu, K. Sudhakar, P. S.Keshava Murthy, K. Mohan Raju

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Chemically crosslinked poly(acrylamide-co-maleic acid) [poly(AAm-co-MA)] hydrogels were prepared by simultaneous free radical copolymerization of acrylamide (AAm) with maleic acid (MA) in presence of di or tri functional crosslinking agents using ammonium persulfate-N,N,N',N'-tetramethylethylenediamine (APS-TMEDA) redox-initiating system. The poly(AAm-co-MA) hydrogels formation was confirmed by IR studies. The influence of crosslinkers such as N,N'-methylene-bis-acrylamide (MBA) and 2,4,6-triallyloxy-1,3,5-triazine (TATA) on swelling/de-swelling characteristics were studied in detail for poly(AAm-co-MA) hydrogels containing different amounts of maleic acid. The present investigation also deals with the influence of concentration of crosslinker and initiator on the swelling behavior of poly(AAM-co-MA) hydrogels. The effect of various salts on swelling capacity was studied. In addition, the effect of simulated biological fluids and pH solutions on the swelling of hydrogels was also studied in detail.

Original languageEnglish (US)
Pages (from-to)513-536
Number of pages24
JournalInternational Journal of Polymeric Materials and Polymeric Biomaterials
Volume55
Issue number7
DOIs
StatePublished - Jul 1 2006
Externally publishedYes

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Hydrogels
Polyacrylates
Swelling
Acids
Ammonium persulfate
Triazines
Acrylamide
Free radicals
Crosslinking
Copolymerization
Free Radicals
maleic acid
Salts
Fluids

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Chemical Engineering(all)
  • Polymers and Plastics

Cite this

Swelling properties of chemically crosslinked poly(acrylamide-co-maleic acid) hydrogels. / Yallapu, Murali; Sudhakar, K.; Murthy, P. S.Keshava; Raju, K. Mohan.

In: International Journal of Polymeric Materials and Polymeric Biomaterials, Vol. 55, No. 7, 01.07.2006, p. 513-536.

Research output: Contribution to journalArticle

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