Analysis of Water Sorption Isotherms of Superabsorbent Polymers by Solution Thermodynamics.
書誌事項
- タイトル別名
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- Analysis of Water Sorption Isotherms of
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説明
Water sorption isotherms of superabsorbent polymers were measured, and their affinity for water was evaluated by solution thermodynamics. The results provide basic data for the functional packaging of food to control the water content of food during its transportation or storage. Water abtivity above 0.9 was measured by adding a specific amount of water to the samples, while that below 0.9 was measured with apparatus for evaluating water sorption isotherms. Thus, water sorption isotherms for superabsorbent polymers were obtained up to a water activity of approximately 0.98. The amount of water sorbed by the superabsorbent polymers was influenced by the type of functional groups in the polymers, and not by the degree of cross-linking in the polymers. The integral Gibbs free energy, which is the most suitable parameter for evaluating the affinity of a material for water, was evaluated from the water sorption isotherms by using solution thermodynamics.
収録刊行物
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- Bioscience, Biotechnology, and Biochemistry
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Bioscience, Biotechnology, and Biochemistry 61 (6), 936-941, 1997
公益社団法人 日本農芸化学会
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詳細情報 詳細情報について
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- CRID
- 1390282681446582016
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- NII論文ID
- 110002678615
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- NII書誌ID
- AA10824164
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- COI
- 1:CAS:528:DyaK2sXkt1Cju7c%3D
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- ISSN
- 13476947
- 09168451
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- NDL書誌ID
- 4240214
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可