Thermal transitions in PHEA hydrogels by thermomechanical analysis. A comparison with DSC data

Manuel Salmerón Sánchez, Manuel Monleón Pradas, José Luis Gómez Ribelles

研究成果: Contribution to journalArticle査読

11 被引用数 (Scopus)

抄録

The thermal transitions observed in hydrogels are frequently explained by invoking the existence of different kinds of water such as 'bound' and 'free' water. However these interpretations are intuitive and do not consider neither the thermodynamics of phase equilibrium nor kinetic aspects. Alternatively, the complicated experimental DSC thermograms have been simply explained in a thermodynamic framework with the help of a transitions diagram where the temperature of the transitions is plotted versus water concentration in the gel. In this work we further support the interpretation of the DSC thermograms on the basis of this diagram by comparing those thermograms with TMA results. The volume changes in the cooling and heating scans can be correlated with the enthalpy changes in the material and can be explained with the transition diagram.

本文言語英語
ページ(範囲)329-334
ページ数6
ジャーナルEuropean Polymer Journal
40
2
DOI
出版ステータス出版済み - 2 2004
外部発表はい

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)
  • 有機化学
  • ポリマーおよびプラスチック
  • 材料化学

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