Evaluation of the Hamaker constants in polymer/water systems based on the Hansen solubility parameters
We recently proposed a simple method for calculating the Hamaker constant, which characterizes van der Waals interactions between materials, using the Hansen solubility parameters for non-polar liquids, polar liquids, and polymers. The obtained values of the Hamaker constant agree well with the exac...
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Elsevier
2025-07-01
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| Series: | Next Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949822825003028 |
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| author | Hiroyuki Ohshima Shin-ichi Takeda |
| author_facet | Hiroyuki Ohshima Shin-ichi Takeda |
| author_sort | Hiroyuki Ohshima |
| collection | DOAJ |
| description | We recently proposed a simple method for calculating the Hamaker constant, which characterizes van der Waals interactions between materials, using the Hansen solubility parameters for non-polar liquids, polar liquids, and polymers. The obtained values of the Hamaker constant agree well with the exact results obtained from the rigorous Lifshitz theory. In this paper, we present a method for evaluating the Hamaker constants in polymer/water systems using the Hansen solubility parameters. We consider the following three cases: (i) the Hamaker constant for a polymer and water across air, (ii) the Hamaker constant for a polymer and air across water, and (iii) the Hamaker constant for two identical polymers across water. Our results show that the commonly used combining relations, which estimate unknown Hamaker constants from known ones, provide good approximations for case (i) but not for cases (ii) and (iii). To improve this, we propose modified combining relations for cases (ii) and (iii). By using the original combining relation for case (i) and the modified versions for cases (ii) and (iii), we derive simple equations for the Hamaker constants expressed in terms of the Hansen solubility parameters. The values calculated using our proposed equations for all three cases show good agreement with the exact values obtained from the rigorous Lifshitz theory. |
| format | Article |
| id | doaj-art-8cc0db4b87b24bfe8edfbb6d2e19d524 |
| institution | Kabale University |
| issn | 2949-8228 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
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| series | Next Materials |
| spelling | doaj-art-8cc0db4b87b24bfe8edfbb6d2e19d5242025-08-20T03:26:35ZengElsevierNext Materials2949-82282025-07-01810078410.1016/j.nxmate.2025.100784Evaluation of the Hamaker constants in polymer/water systems based on the Hansen solubility parametersHiroyuki Ohshima0Shin-ichi Takeda1Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan; Corresponding author.Takeda Colloid Techno-Consulting Co., Ltd., Osaka 564-0051, JapanWe recently proposed a simple method for calculating the Hamaker constant, which characterizes van der Waals interactions between materials, using the Hansen solubility parameters for non-polar liquids, polar liquids, and polymers. The obtained values of the Hamaker constant agree well with the exact results obtained from the rigorous Lifshitz theory. In this paper, we present a method for evaluating the Hamaker constants in polymer/water systems using the Hansen solubility parameters. We consider the following three cases: (i) the Hamaker constant for a polymer and water across air, (ii) the Hamaker constant for a polymer and air across water, and (iii) the Hamaker constant for two identical polymers across water. Our results show that the commonly used combining relations, which estimate unknown Hamaker constants from known ones, provide good approximations for case (i) but not for cases (ii) and (iii). To improve this, we propose modified combining relations for cases (ii) and (iii). By using the original combining relation for case (i) and the modified versions for cases (ii) and (iii), we derive simple equations for the Hamaker constants expressed in terms of the Hansen solubility parameters. The values calculated using our proposed equations for all three cases show good agreement with the exact values obtained from the rigorous Lifshitz theory.http://www.sciencedirect.com/science/article/pii/S2949822825003028Hamaker constantHansen solubility parameterPolymerWaterVan der Waals interactionLifshitz theory |
| spellingShingle | Hiroyuki Ohshima Shin-ichi Takeda Evaluation of the Hamaker constants in polymer/water systems based on the Hansen solubility parameters Next Materials Hamaker constant Hansen solubility parameter Polymer Water Van der Waals interaction Lifshitz theory |
| title | Evaluation of the Hamaker constants in polymer/water systems based on the Hansen solubility parameters |
| title_full | Evaluation of the Hamaker constants in polymer/water systems based on the Hansen solubility parameters |
| title_fullStr | Evaluation of the Hamaker constants in polymer/water systems based on the Hansen solubility parameters |
| title_full_unstemmed | Evaluation of the Hamaker constants in polymer/water systems based on the Hansen solubility parameters |
| title_short | Evaluation of the Hamaker constants in polymer/water systems based on the Hansen solubility parameters |
| title_sort | evaluation of the hamaker constants in polymer water systems based on the hansen solubility parameters |
| topic | Hamaker constant Hansen solubility parameter Polymer Water Van der Waals interaction Lifshitz theory |
| url | http://www.sciencedirect.com/science/article/pii/S2949822825003028 |
| work_keys_str_mv | AT hiroyukiohshima evaluationofthehamakerconstantsinpolymerwatersystemsbasedonthehansensolubilityparameters AT shinichitakeda evaluationofthehamakerconstantsinpolymerwatersystemsbasedonthehansensolubilityparameters |