https://scholars.lib.ntu.edu.tw/handle/123456789/64415
標題: | 穿越奈米孔洞高分子動態行為之研究(1/3) The effect of topological constraint on the Theta temperature of a knotted polymer(1/3) |
作者: | 諶玉真 | 關鍵字: | Monte Carlo simulation;second virial coefficient;topological constraint | 公開日期: | 21-五月-2003 | 出版社: | 臺北市:國立臺灣大學化學工程學系暨研究所 | 摘要: | Monte Carlo simulations were used to study the effect of topological constraints of knotted polymers on their theta temperatures. The theta temperatures were determined through two different definitions - the vanishing of the second virial coefficient A2=0, and the quasi-ideal behavior of the radius of gyration, to 300 and with crossings from 31 to 91 were considered. For chains with finite lengths, it was found that the theta temperature determined from quasi-ideal condition of the knot increases, as the complexity of the knot increases. On the other hand, the topological complexity seemed to have no effect on the theta temperatures determined from the vanishing of the second virial coefficient. Also, our simulation results suggest that for chains with finite crossing numbers, as N˜˜, theta temperatures for all knots obtained from two different approaches coincide and are equivalent to that of a linear polymer chain. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/9326 | 其他識別: | 912214E002011 | Rights: | 國立臺灣大學化學工程學系暨研究所 |
顯示於: | 化學工程學系 |
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912214E002011.pdf | 253.31 kB | Adobe PDF | 檢視/開啟 |
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