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中文题名:

 刚性对均聚物共混界面的影响    

姓名:

 张岩    

保密级别:

 公开    

论文语种:

 中文    

学科代码:

 070201    

学科专业:

 物理学    

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    

校区:

 北京校区培养    

学院:

 物理学系    

第一导师姓名:

 严大东    

第一导师单位:

 北京师范大学物理系    

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:

 刚性 ; 均聚物共混 ; 蠕虫状链 ; 自洽场    

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    

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