Molecular Rheology of Isotropic and Anisotropic Entangled Polymer Liquids

各向同性和各向异性缠结聚合物液体的分子流变学

• 批准号: 9700928
• 负责人: Arkady Leonov
• 金额: $ 3.53万
• 依托单位: University of Akron
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-05-01 至 2000-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9700928&HistoricalAwards=false
• 关键词: Molecular; Rheology; Isotropic; Anisotropic; Entangled

9700928 Leonov This grant involves cooperative research between the Department of Polymer Engineering, The University of Akron (Akron, OH) and the Laboratory of Rheology, Institute of Petrochemical Synthesis, the Russian Academy of Sciences (Moscow, Russia). Several fundamental problems in molecular rheology will be investigated in the course of this work. The primary objectives of the work are the following: Analytical and numerical studies of a self-consistent condition for polymers with long and flexible chains. A molecular approach to linear viscoelastic behavior of polymers using looping concept. Experimental studies of slow relaxation processes in narrow distributed polymers. A theory of relaxation interaction in liquid crystalline polymers using a mean field approach to elaborate a constitutive equation for liquid crystalline polymers of nematic type. %%% This research helps to lay the theoretical and experimental foundations for the understanding of polymer flow and processing. ***

9700928 Leonov这项资助涉及阿克伦大学（Akron， OH）聚合物工程系和俄罗斯科学院（Moscow, Russia）石化合成研究所流变学实验室之间的合作研究。分子流变学的几个基本问题将在这项工作的过程中进行研究。本工作的主要目的如下：分析和数值研究具有长链和柔性链的聚合物的自洽条件。用环概念研究聚合物线性粘弹性行为的分子方法。窄分布聚合物中慢弛豫过程的实验研究。液晶聚合物弛豫相互作用理论用平均场方法阐述了向列型液晶聚合物的本构方程。本研究有助于为了解聚合物的流动和加工奠定理论和实验基础。＊＊＊