Swelling and diffusion properties of poly(acrylamide-co-maleic acid) hydrogels

A study with different crosslinking agents

Murali Yallapu, P. S.Keshava Murthy, H. Sudhakar, B. Vijay Kumar Naidu, K. Mohana Raju, M. Padmanabha Raju

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Crosslinked hydrogels comprising acrylamide (AAm) and maleic acid (MA) were synthesized by free radical polymerization in presence of a crosslinker using ammonium persulfate (APS) and N,N,N 1 ,N 1 -tetramethylethylenediamine (TMEDA) as initiator and activator, respectively. The crosslinked hydrogel formation was confirmed by IR analysis. The swelling/de-swelling characteristics were studied in detail for crosslinked poly(acrylamide-co-maleic acid) [poly(AAM-co-MA)] hydrogels containing different amounts of maleic acid. Four different crosslinkers such as 1,2-ethyleneglycol dimethacrylate (EGDMA), 1,4-butanediol diacrylate (BDDA), 1,6-hexanediol diacrylate (HDDA), and diallyl phthalate (DP) were utilized to study their influence on the swelling behavior of the hydrogels. The effect of reaction parameters such as the concentration of crosslinker and initiator on swelling capacity of the crosslinked poly(AAm-co-MA) hydrogels was also investigated. Further, the influence of various salts, simulated biological fluids, and pH solutions on the swelling pattern of hydrogels was studied extensively. Phase separation morphology of crosslinked hydrogels was also studied by differential scanning calorimetry. The morphology of crosslinked hydrogels were revealed using scanning electron microscopy (SEM).

Original languageEnglish (US)
Pages (from-to)867-892
Number of pages26
JournalInternational Journal of Polymeric Materials and Polymeric Biomaterials
Volume55
Issue number11
DOIs
StatePublished - Nov 1 2006
Externally publishedYes

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Hydrogels
Polyacrylates
Crosslinking
Swelling
Acids
diallyl phthalate
Acrylamide
Ammonium persulfate
Hydrogel
Free radical polymerization
maleic acid
Phase separation
Differential scanning calorimetry
Salts
Scanning electron microscopy
Fluids

All Science Journal Classification (ASJC) codes

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

Cite this

Swelling and diffusion properties of poly(acrylamide-co-maleic acid) hydrogels : A study with different crosslinking agents. / Yallapu, Murali; Murthy, P. S.Keshava; Sudhakar, H.; Naidu, B. Vijay Kumar; Raju, K. Mohana; Raju, M. Padmanabha.

In: International Journal of Polymeric Materials and Polymeric Biomaterials, Vol. 55, No. 11, 01.11.2006, p. 867-892.

Research output: Contribution to journalArticle

Yallapu, Murali ; Murthy, P. S.Keshava ; Sudhakar, H. ; Naidu, B. Vijay Kumar ; Raju, K. Mohana ; Raju, M. Padmanabha. / Swelling and diffusion properties of poly(acrylamide-co-maleic acid) hydrogels : A study with different crosslinking agents. In: International Journal of Polymeric Materials and Polymeric Biomaterials. 2006 ; Vol. 55, No. 11. pp. 867-892.
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