| COALESCENCE INDUCED GRADIENT MORPHOLOGY NEAR A WALL IN PHASE SEPARATED POLYMER BLENDS DURING QUIESCENT ANNEALING |
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| 引用本文： | Wei Yu,Chi-xing Zhou,De-lu Zhao Department of Polymer Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240 China State Key Laboratory of Polymer Physics and Chemistry,Institute of Chemistry,Chinese Academy of Sciences Beijing 100080,China. COALESCENCE INDUCED GRADIENT MORPHOLOGY NEAR A WALL IN PHASE SEPARATED POLYMER BLENDS DURING QUIESCENT ANNEALING[J]. 高分子科学, 2002, 0(6): 543-550 |
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| 作者姓名： | Wei Yu Chi-xing Zhou De-lu Zhao Department of Polymer Science and Engineering Shanghai Jiao Tong University Shanghai 200240 China State Key Laboratory of Polymer Physics and Chemistry Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China |
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| 作者单位： | Wei Yu;Chi-xing Zhou;De-lu Zhao Department of Polymer Science and Engineering，Shanghai Jiao Tong University，Shanghai 200240 China State Key Laboratory of Polymer Physics and Chemistry，Institute of Chemistry，Chinese Academy of Sciences Beijing 100080，China |
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| 基金项目： | This work was supported by research grants from the National Natural Science Foundation of China and The Special Funds for Major State Basic Research Projects (G199906408). |
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| 摘 要： | A fast coalescence mechanism is proposed to account for the wall effect on the formation of gradient morphologyin phase separated polymer blends during quiescent annealing. The existence of solid wall with high polarity is believed tochange the potential field around the dispersed pedicles near the wall. This additional potential interaction between the solidwall and the dispersed particles causes faster coalescence of the dispersed particles near the wall than in the bulk. Thegradient phase morphology thus formed can be predicted by combining the wall-particle interaction and the touch-coalescence mechanism. The effect of interfacial tension on the gradient morphology is also discussed.
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| 收稿时间： | 2002-01-10 |
| 修稿时间： | 2002-03-13 |
COALESCENCE INDUCED GRADIENT MORPHOLOGY NEAR A WALL IN PHASE SEPARATED POLYMER BLENDS DURING QUIESCENT ANNEALING* |
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| Wei Yu,Chi-xing Zhou,De-lu Zhao. COALESCENCE INDUCED GRADIENT MORPHOLOGY NEAR A WALL IN PHASE SEPARATED POLYMER BLENDS DURING QUIESCENT ANNEALING*[J]. Chinese Journal of Polymer Science, 2002, 0(6): 543-550 |
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| Authors: | Wei Yu Chi-xing Zhou De-lu Zhao |
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| Affiliation: | Department of Polymer Science and Engineering; Shanghai Jiao Tong University; Shanghai 200240 China State Key Laboratory of Polymer Physics and Chemistry; Institute of Chemistry; Chinese Academy of Sciences Beijing 100080; China |
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| Abstract: | A fast coalescence mechanism is proposed to account for the wall effect on the formation of gradient morphologyin phase separated polymer blends during quiescent annealing. The existence of solid wall with high polarity is believed tochange the potential field around the dispersed pedicles near the wall. This additional potential interaction between the solidwall and the dispersed particles causes faster coalescence of the dispersed particles near the wall than in the bulk. Thegradient phase morphology thus formed can be predicted by combining the wall-particle interaction and the touch-coalescence mechanism. The effect of interfacial tension on the gradient morphology is also discussed. |
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| Keywords: | Gradient morphology Wall effect Coalescence Polymer blends Interfacial tension |
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