Force-induced phase behavior of polymer chains(外力诱导下的高分子链相变)
采用nPERMis(new pruned-enriched rosenbluth method with importance sampling）算法,研究了吸附在表面的高分子链在外力诱导下的相变行为.以链长N = 60的高分子链为例,在外力的作用下相变临界温度比没有外力作用的相变临界温度要低,并随外力的增大相变临界温度降低,但比热容峰值会增大.当外力f= 1.0或者1.5时,在高温区域高分子链形状发生较大变化,但在低温区由于高分子链内部相互作用和界面的吸附作用,高分子链随温度的降低塌缩成与没有外力作用相同的构象.对于不同的链长,在同一外力的作用下,相变临界温度随链长增大而增大,且比热峰值也增...
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| Format: | Article |
| Language: | zho |
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Zhejiang University Press
2009-05-01
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| Series: | Zhejiang Daxue xuebao. Lixue ban |
| Subjects: | |
| Online Access: | https://doi.org/10.3785/j.issn.1008-9497.2009.03.007 |
| _version_ | 1797236114640076800 |
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| author | YANGZhi-yong(杨志勇) CHENGJun(成军) |
| author_facet | YANGZhi-yong(杨志勇) CHENGJun(成军) |
| author_sort | YANGZhi-yong(杨志勇) |
| collection | DOAJ |
| description | 采用nPERMis(new pruned-enriched rosenbluth method with importance sampling）算法,研究了吸附在表面的高分子链在外力诱导下的相变行为.以链长N = 60的高分子链为例,在外力的作用下相变临界温度比没有外力作用的相变临界温度要低,并随外力的增大相变临界温度降低,但比热容峰值会增大.当外力f= 1.0或者1.5时,在高温区域高分子链形状发生较大变化,但在低温区由于高分子链内部相互作用和界面的吸附作用,高分子链随温度的降低塌缩成与没有外力作用相同的构象.对于不同的链长,在同一外力的作用下,相变临界温度随链长增大而增大,且比热峰值也增大. |
| first_indexed | 2024-04-24T16:58:43Z |
| format | Article |
| id | doaj.art-2c930d6c20af44c1be07795de80ecb92 |
| institution | Directory Open Access Journal |
| issn | 1008-9497 |
| language | zho |
| last_indexed | 2024-04-24T16:58:43Z |
| publishDate | 2009-05-01 |
| publisher | Zhejiang University Press |
| record_format | Article |
| series | Zhejiang Daxue xuebao. Lixue ban |
| spelling | doaj.art-2c930d6c20af44c1be07795de80ecb922024-03-29T01:58:27ZzhoZhejiang University PressZhejiang Daxue xuebao. Lixue ban1008-94972009-05-0136327427710.3785/j.issn.1008-9497.2009.03.007Force-induced phase behavior of polymer chains(外力诱导下的高分子链相变)YANGZhi-yong(杨志勇)0CHENGJun(成军)1 1.Department of Physics, Wenzhou University, Wenzhou 325007, Zhejiang Province, China( 1.温州大学物理系，浙江 温州 325007) 2.J inhua College of Profession and Technology, Jinhua 321017, Zhejiang Province, China( 2.金华职业技术学院，浙江 金华 321017)采用nPERMis(new pruned-enriched rosenbluth method with importance sampling）算法,研究了吸附在表面的高分子链在外力诱导下的相变行为.以链长N = 60的高分子链为例,在外力的作用下相变临界温度比没有外力作用的相变临界温度要低,并随外力的增大相变临界温度降低,但比热容峰值会增大.当外力f= 1.0或者1.5时,在高温区域高分子链形状发生较大变化,但在低温区由于高分子链内部相互作用和界面的吸附作用,高分子链随温度的降低塌缩成与没有外力作用相同的构象.对于不同的链长,在同一外力的作用下,相变临界温度随链长增大而增大,且比热峰值也增大.https://doi.org/10.3785/j.issn.1008-9497.2009.03.007外力诱导npermis算法相变 |
| spellingShingle | YANGZhi-yong(杨志勇) CHENGJun(成军) Force-induced phase behavior of polymer chains(外力诱导下的高分子链相变) Zhejiang Daxue xuebao. Lixue ban 外力诱导 npermis算法 相变 |
| title | Force-induced phase behavior of polymer chains(外力诱导下的高分子链相变) |
| title_full | Force-induced phase behavior of polymer chains(外力诱导下的高分子链相变) |
| title_fullStr | Force-induced phase behavior of polymer chains(外力诱导下的高分子链相变) |
| title_full_unstemmed | Force-induced phase behavior of polymer chains(外力诱导下的高分子链相变) |
| title_short | Force-induced phase behavior of polymer chains(外力诱导下的高分子链相变) |
| title_sort | force induced phase behavior of polymer chains 外力诱导下的高分子链相变 |
| topic | 外力诱导 npermis算法 相变 |
| url | https://doi.org/10.3785/j.issn.1008-9497.2009.03.007 |
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