Theoretical and Experimental Analysis of Polymer Molecular Weight and Temperature Effects on the Dissolution Process of Polystyrene in Ethylbenzene.
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- Kong Bae Soo
- Department of Chemical Engineering, Sung Kyun Kwan University
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- Kwon Yong Sung
- Department of Physics, Sung Kyun Kwan University
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- Kim Dukjoon
- Department of Chemical Engineering, Sung Kyun Kwan University
書誌事項
- タイトル別名
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- Theoretical and Experimental Analysis o
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The effects of temperature and molecular weight on the polymer dissolution rate were investigated by comparison of the numerical simulation with the experimental observations. The Fickian diffusion equation was modified to predict the non-Fickian behavior by considering the temperature and concentration dependence of diffusion coefficient for moving (swelling) polymer films caused by solvent incorporation. The polymer dissolution process was predicted using the polymer chain disentanglement mechanism, founded on the reptation theory. The temperature and polymer molecular weight dependence of dissolution rate was measured using the laser interferometer technique. As results of simultaion and observations for the dissolution of polystyrenes in ethylbenzene, the dissolution rate increased with increasing temperature and decreasing polymer molecular weight and there was linear relationship between them in logarithmic scale. The experimentally determined values of exponent a and b which indicate the dependence strength of molecular weight and temperature on the dissolution rate were very similar to those theoretically estimated.
収録刊行物
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- Polymer Journal
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Polymer Journal 29 (9), 722-732, 1997
The Society of Polymer Science, Japan
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詳細情報 詳細情報について
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- CRID
- 1390282681267525888
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- NII論文ID
- 130004429869
- 10006272753
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- NII書誌ID
- AA00777013
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- COI
- 1:CAS:528:DyaK2sXmtlGjtbk%3D
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- ISSN
- 13490540
- 00323896
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- NDL書誌ID
- 4326553
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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