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Polymers 2016, 8(9), 301;

Scattering and Gaussian Fluctuation Theory for Semiflexible Polymers

School of Science, Beijing Jiaotong University, Beijing 100044, China
Author to whom correspondence should be addressed.
Academic Editor: Martin Kröger
Received: 31 May 2016 / Revised: 5 August 2016 / Accepted: 8 August 2016 / Published: 13 September 2016
(This article belongs to the Special Issue Semiflexible Polymers)
PDF [854 KB, uploaded 13 September 2016]


The worm-like chain is one of the best theoretical models of the semiflexible polymer. The structure factor, which can be obtained by scattering experiment, characterizes the density correlation in different length scales. In the present review, the numerical method to compute the static structure factor of the worm-like chain model and its general properties are demonstrated. Especially, the chain length and persistence length involved multi-scale nature of the worm-like chain model are well discussed. Using the numerical structure factor, Gaussian fluctuation theory of the worm-like chain model can be developed, which is a powerful tool to analyze the structure stability and to predict the spinodal line of the system. The microphase separation of the worm-like diblock copolymer is considered as an example to demonstrate the usage of Gaussian fluctuation theory. View Full-Text
Keywords: worm-like chain model; structure factor; Gaussian fluctuation theory; random phase approximation worm-like chain model; structure factor; Gaussian fluctuation theory; random phase approximation

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Bu, X.; Zhang, X. Scattering and Gaussian Fluctuation Theory for Semiflexible Polymers. Polymers 2016, 8, 301.

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