项目名称: 超分子聚合物的单链机械稳定性及弹性力学
项目编号: No.21304052
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 数理科学和化学
项目作者: 于莹
作者单位: 清华大学
项目金额: 25万元
中文摘要: 本项目致力于用单分子力谱方法研究超分子聚合物的分子级力学性能,建立单分子力谱评价超分子聚合物链稳定性及链机械性能的数据体系,填补溶液中的超分子聚合物性质行为的研究空白。通过对一系列结构特点不同的超分子聚合物进行单分子力谱实验,从分子水平评价超分子聚合物的力学稳定性、应力应变机理及弹性力学特征,比较其与传统聚合物分子链的差别,分析化学结构、驱动力性质等因素对超分子聚合物链力学性能的影响,为认识超分子聚合物材料的力学性能及其影响因素、实现超分子材料力学性能调控提供必要的直观依据,同时为使单分子力谱真正成为表征超分子聚合物的有力手段提供更充足的数据积累。
中文关键词: 单分子力谱;超分子聚合物;主客体相互作用;链内主客体相互作用;
英文摘要: The project is aimed to study the mechanical properties of supramolecular polymer at single-molecule level using single-molecule force spectroscopy, building a data base for the mechanical stability and the elasticity of single-chain supramolecular polymer, shedding light on the property and behavior of supramolecular polymer in solution. We will carry out single-molecule force spectroscopy experiment on a series of supramolecular polymers with different chemical structures, and compare the supramolecular polymer and traditional polymer on mechanical stability, stress-strain behavior and chain elasticity. The result of this project will give an insight into the mechanical properties and its influencing factors of supramolecular polymer, leading a way for the control and regulation of the mechanical properties of supramolecular polymer materials. An accumulation of data required by the characterization of the supramolecular polymer using single-molecule force spectroscopy will also be achieved through the works of this project.
英文关键词: single-molecule force spmolecular polymeectroscopy;supramolecular polymer;host-guest interaction;intrachain host-guest interaction;