Self-Assembly of Diblock Copolymer-Based Supramolecule Thin Films at Two Length Scales

基于二嵌段共聚物的超分子薄膜在两种长度尺度上的自组装

• 批准号: 0805301
• 负责人: Ting Xu
• 金额: $ 7万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-07-01 至 2009-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0805301&HistoricalAwards=false
• 关键词: Self; Assembly; Diblock; Copolymer; Based

The synergistic assembly of block copolymers and small molecules combines (a) the possibility and nanoscopic self-assembly of block copolymers and (b) the rich chemical functionality and molecular assembly of small molecule which can lead to hierarchical functional materials. A fundamental understanding will be developed on the assembly processes of diblock copolymer-based supramolecules in thin films and the interplay between the assembly processes of diblock copolymer and the small molecules on two different length scales. Specifically efforts will focus on the phase behavior of block copolymers in the presence of small molecules in thin film and the self assembly of the small molecules within the bock copolymer microdomains and their effect on the copolymer microdomain orientation in thin films.The proposed studies add a new dimension to our existing knowledge of hierarchical assembly of soft materials and will improve our understanding of the interplay between self-assembly processes of two different length scales namely tens of nanometer and sub-nanometer (molecular) level. Since the built-in functionalities can be readily incorporated and the fundamental principles underpinning the synergy are general, the proposed studies will open mew avenues to functional hierarchical thin film materials.%%%Visualization of nanostructures effectively demonstrates the bridge between polymer science and nanoscience and will stimulate viewers? interests in fundamental sciences. Supramolecular assemblies produce a large library of fascinating images at different length scales. Programs will be developed to use these images to promote polymer science among different non-technical groups. During the funding period of this proposal, efforts will be initiated in the following three areas. 1. For undergraduate and graduate students, class modules will be developed for the polymeric materials course to educate students with different backgrounds.2. For aspiring students from under-represented groups, summer research opportunities will be crated. The students will collect images from his/her experiments to help their peers appreciate polymer science.3. For the general public, a seed program will be initiated on the West Coast to promote science using arts.

块共聚物和小分子的协同组装结合了（a）块共聚物的可能性和纳米镜头自组装，以及（b）小分子的丰富化学功能和分子组装，这可以导致层次功能材料。 将在薄膜中基于二嵌段的共聚物超分子的组装过程以及二嵌段共聚物的组装过程与两个不同长度尺度上的小分子之间的相互作用方面有基本的理解。 具体的努力将侧重于薄膜中小分子的存在以及bock共聚物微域中的小分子的自我组装及其对薄膜中共聚物微域的影响的影响。所提出的研究将为我们的近距离理解的新知识增添新的知识，并将其对薄膜的共聚物置于薄膜中的新知识，并将其影响即几十纳米和亚纳米（分子）水平。 由于内置功能可以很容易地纳入，并且基于协同作用的基本原理是一般的，因此拟议的研究将为功能分层薄膜材料开放MEW途径。;量子结构的可视化有效地证明了聚合物科学与纳米科学与纳米科学与纳米科学之间的桥梁，并会刺激观众？基础科学的兴趣。 超分子组件在不同的长度尺度上产生了大量迷人图像的库。 将开发计划使用这些图像来促进不同非技术群体之间的聚合物科学。 在该提案的资助期间，将在以下三个领域开始努力。 1。对于本科生和研究生，将为聚合物材料课程开发班级模块，以教育背景不同的学生2。对于来自代表性不足的团体的有抱负的学生，夏季研究机会将被误解。 学生将从他/她的实验中收集图像，以帮助他们的同龄人欣赏聚合物科学3。对于公众来说，将在西海岸启动种子计划，以使用艺术来促进科学。