中文题名: | 刚性对均聚物共混界面的影响 |
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保密级别: | 公开 |
论文语种: | 中文 |
学科代码: | 070201 |
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学生类型: | 学士 |
学位: | 理学学士 |
学位年度: | 2020 |
学校: | 北京师范大学 |
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第一导师姓名: | |
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提交日期: | 2020-06-07 |
答辩日期: | 2020-05-17 |
外文题名: | Effect of rigidity on homopolymer blending interface |
中文关键词: | |
外文关键词: | Rigidity ; Homopolymer blend ; Worm-like-chain ; Self-consistent field |
中文摘要: |
自洽场理论是解决高分子复杂系统平衡态的非常有效的方法,常用的是基于高斯链的自洽场理论,但是基于高斯链的自洽场理论无法处理有一定刚性的高分子体系,像是生物大分子和一些光电材料中的问题。由于蠕虫状链可以设定链有不同的刚性,近年来,基于蠕虫状链的自洽场理论得到了快速发展。基于蠕虫状链的自洽场方程的求解是一种六维的复杂的优化问题,其解法也是近年来热点的研究方向。我们使用蠕虫链模型,考虑Flory-Huggins相互作用,推导出自洽场方程和MDE方程,探索有效的数值解法,研究链的刚性对均聚物共混界面的影响,分析界面宽度收到蠕虫状链刚性的影响。 |
外文摘要: |
Self-consistent field theory is a very effective method to solve the equilibrium state of complex polymer systems. Self-consistent field theory based on Gaussian chain, which is commonly used, cannot deal with polymer systems with certain rigidity, like It is a problem in biological macromolecules and some optoelectronic materials. Since worm-like chains can set chains with different rigidities, the self-consistent field theory based on worm-like chains has developed rapidly in recent years. The solution of the self-consistent field equation based on the worm-like chain is a six-dimensional complex optimization problem, and its solution is also a hot research area in recent years. We use the worm chain model incorporated with Flory-Huggins interactions to derive self-consistent field equations and MDE equations, explore effective numerical solutions, study the influence of chain rigidity on the homopolymer blending interface, and analyze the influence of the worm-like chain rigidity on the interface width. |
参考文献总数: | 16 |
插图总数: | 3 |
插表总数: | 0 |
馆藏号: | 本070201/20049 |
开放日期: | 2021-06-07 |