具有理想二元混合聚类中心的稠密polymer的场论方法
Field-theoretical approach to a dense polymer with an ideal binary mixture of clustering centers
摘要：
我们提出了一种场论方法，沉浸在一个理想的混合物的聚类中心的聚合物系统。该系统包含几种具有不同功能的聚类中心，每个聚类中心将链的固定数量段相互连接。使用鞍点近似求解场理论，并使用随机相近似对致密聚合物熔体进行评价。我们发现了一个短程有效的段间相互作用的强度依赖于平均段密度，并讨论了这种近似下的结构因子。我们还确定了不同功能的连接子的分数。
英文摘要：
We propose a field-theoretical approach to a polymer system immersed in an ideal mixture of clustering centers. The system contains several species of these clustering centers with different functionality, each of which connects a fixed number segments of the chain to each other. The field-theory is solved using the saddle point approximation and evaluated for dense polymer melts using the Random Phase Approximation. We find a short-ranged effective inter-segment interaction with strength dependent on the average segment density and discuss the structure factor within this approximation. We also determine the fractions of linkers of the different functionalities.
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