• Effects of Crosslink Agents on Sodium Alginate and Lignosulphonic Acid Blends
  • Reddy SG, Pandit AS, Thakur A
  • 가교제가 Sodium Alginate와 Lignosulphonic Acid의 블렌드에 미치는 영향
Abstract
Blends of sodium alginate (SA) and lignosulphonic acid (LS) has been prepared in the ratio of 80/20. The prepared blends were crosslinked using chlorides of calcium, barium, strontium and aluminum. The crosslinking of blends was done for different time intervals and then these blends were subjected for swelling studies in aqueous medium of pH 7.4. The observations indicate that the crosslinking is diffusion controlled and is affected by the size of metal ion and the type of alginate used. The improved swelling time for crosslinked blends in aqueous medium supports the fact that the stability under physiological conditions of the blends is improved due to crosslinking with the metal ions. Calcium chloride and barium chloride forms strong crosslink with the blend. Calcium ion crosslinked blends can be considered suitable for biomedical drug applications. The investigations on crosslinked blends using FTIR, SEM, XRD and EDAX are in close agreement with swelling results.

Keywords: sodium alginate; lignosulphonic acid; swelling; crosslinking

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2024 Impact Factor : 0.6
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This Article

  • 2016; 40(1): 63-69

    Published online Jan 25, 2016

  • 10.7317/pk.2016.40.1.63
  • Received on Aug 7, 2015
  • Accepted on Oct 17, 2015