高分子动力学的单链模型

发布时间：2018-05-18 12:23

本文选题：Rouse模型 + Zimm模型　；参考：《高分子学报》2017年05期

【摘要】：高分子单链模型是高分子稀溶液理论研究的基本模型.对其进行深入地分析,不仅有助于解决高分子稀溶液体系中溶液黏度和分子链扩散等基本问题,而且能够增进人们对高分子链结构与溶液性质间关联性的理解.虽然基于经典连续性介质力学的流体动力学理论可以定性,甚至半定量地获得稀溶液的一些重要性质,但是,随着科学技术的发展,人们从分子水平上建立了许多描述高分子稀溶液性质的模型和理论,期望能够定量地描述高分子稀溶液的性质.本文以高分子稀溶液中3个典型的单链模型为例(包括:不含流体力学相互作用的Rouse模型、含二体流体力学相互作用的Zimm模型和含多体流体力学相互作用的部分穿透球模型),综述高分子稀溶液的重要性质,并详细地给出其动力学方程的推导过程及其重要的研究进展.特别是,对于Rouse模型,本文还将其预言结果拓展到了短链高分子流体体系;此外,还介绍了这一领域的关键科学问题、发展前景和研究方向.
[Abstract]:The polymer single chain model is the basic model for the theoretical study of polymer dilute solution. It is helpful to solve the basic problems of solution viscosity and molecular chain diffusion in dilute polymer solution system, and to improve the understanding of the relationship between polymer chain structure and solution properties. Although some important properties of dilute solutions can be obtained qualitatively or even semi-quantitatively by hydrodynamic theory based on classical continuous medium mechanics, with the development of science and technology, Many models and theories have been established to describe the properties of dilute polymer solutions at the molecular level, and it is expected that the properties of dilute polymer solutions can be quantitatively described. In this paper, three typical single-chain models in dilute polymer solutions (including Rouse model without hydrodynamic interaction) are taken as examples. The Zimm model with two-body hydrodynamics interaction and the partial penetrating sphere model with multi-body hydrodynamic interaction are reviewed in this paper. The important properties of dilute polymer solutions are reviewed. The derivation of their kinetic equations and their important research progress are given in detail. In particular, for the Rouse model, the predicted results are extended to short chain polymer fluid systems, and the key scientific problems, development prospects and research directions in this field are also introduced.
【作者单位】：中国科学院长春应用化学研究所高分子物理与化学国家重点实验室;
【基金】：国家自然科学基金(基金号21304097,21334007,21474109,21674113) 中国科学院青年创新促进会(基金号2016204)资助项目
【分类号】：O631.1

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