Article
  • Effect of Salts on the Thermal Stability of Physically Crosslinked Gelatin Hydrogels: DSC and Rheology Study
  • Zhang J, Qiao C, Ma X, Liu W, Liu Q
  • 물리적으로 가교된 젤라틴 하이드로젤의 열안정성에 대한 염의 효과: DSC와 유변학 특성
Abstract
The effects of preparation conditions, such as polymer concentration, annealing temperature, annealing time and pH, on the melting behavior of gelatin gels were investigated. An optimum condition of gel preparation for calorimetric test is obtained. In addition, the influence of salt including salt concentration and salt type on the melting behavior of gelatin gels was explored by DSC and rheometer. It was found that the melting temperature first increased and then decreased with an increase in salt concentration. This result indicates that electrostatic interactions are important for the formation and stability of gelatin gels. Moreover, the melting temperature of polymer gels with different salt addition conforms to the following orders: Na+

Keywords: gelatin gels; thermal stability; polyelectrolyte; rheology

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2017; 41(4): 702-708

    Published online Jul 25, 2017

  • 10.7317/pk.2017.41.4.702
  • Received on Jan 30, 2017
  • Revised on Nov 30, -0001
  • Accepted on Mar 13, 2017

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