Effect of organic and inorganic modifiers on the water retention properties of poly(2-hydroxyethyl methacrylate)
碩士 === 元智大學 === 化學工程與材料科學學系 === 97 === The effects of organic and inorganic modifiers on the interactions of water content, bounded water content, water retention, and mechanical properties of poly(2-hydroxyethyl methacrylate) hydrogel are studied using differential scanning calorimetry (DSC), Fouri...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2009
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| Online Access: | http://ndltd.ncl.edu.tw/handle/59571265459020511213 |
| Summary: | 碩士 === 元智大學 === 化學工程與材料科學學系 === 97 === The effects of organic and inorganic modifiers on the interactions of water content, bounded water content, water retention, and mechanical properties of poly(2-hydroxyethyl methacrylate) hydrogel are studied using differential scanning calorimetry (DSC), Fourier transformed infrared spectroscopy, water evaporation measurement, and Instron mechanical tester. The innovative organic modifiers synthesized are compatible with modified hydrophilic siloxane and curable rapidly through radical polymerization. The water content and water retention are affected by hydrophilic and crosslinker contents in the formulation. The use of organic modifier can improve the water retention but decrease the water content of the cured film. The results of DSC indicate that the percentage of the bounded water in the specimen increases with the content of organic or inorganic modifiers. The water diffusion coefficients of formulate specimens are in the order of 10-12 m2/s. The addition of a small amount of organic modifiers would significantly decrease the diffusion coefficient of the hydrogel.
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