Nanostructure Synthesis using Reactive Block Copolymers

使用反应性嵌段共聚物合成纳米结构

• 批准号: 0094144
• 负责人: Marc Hillmyer
• 金额: $ 40万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-01-01 至 2005-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0094144&HistoricalAwards=false
• 关键词: Nanostructure; Synthesis; using; Reactive; Block

The career development plan described in this proposal focuses on diblock copolymers, a class of hybrid macromolecules that represent an extremely interesting set of self-assembling materials with a wide variety of applications. Diblock copolymers are simple macromolecules consisting of two segments of chemically distinct monomers connected by one covalent bond. This one bond prevents macrophase separation of the two polymeric segments and leads to the formation of a variety of nanoscopic assemblies depending on the nature of the monomers, the molecular weight of the chain, and minority component volume fraction. While their uses as thermoplastic elastomers, pressure sensitive adhesives, and compatibilizing agents are wide spread, it has only been recently that the nanoscopic compositional heterogenties have been exploited for the preparation of other nanostructured materials. A strategy for the preparation of nanoporous materials using ordered block copolymers templates will be investigated. The ultimate of this research goal is the preparation of polymeric monoliths that contain aligned nanopores with a narrow pore size distribution and an extremely high pore density. Two general strategies for the preparation of porous materials starting from ordered block copolymers are presented. One utilized block copolymers with a degradable block and the other utilized block of an array of interesting nanomaterials. The work described in this proposal depends on the combination of polymer synthesis, supramolecular self-assembly and characterization, and solid-state chemistry of ordered block copolymers.%%%The science and technology of structures on the nanometer length scale is central to many research initiatives. The research described in this proposal addresses an area that will have significant impact on the development of nanostructured templates and scaffolds for the design and synthesis of new nanomaterials. The target materials will have remarkable potential as nanostructure scaffolds, separation media, and optical devices. Furthermore, this plan also includes a section on integration research and educational activities. There are two primary aspects the proposed educational plan. The first is focused on graduate education in the field of polymer science, and the second is centered around undergraduate education at the Freshman level and adult continuing education.

该提案中描述的职业发展计划重点关注二嵌段共聚物，这是一类杂化大分子，代表了一组非常有趣的自组装材料，具有广泛的应用。 二嵌段共聚物是一种简单的大分子，由两个化学性质不同的单体片段组成，通过一个共价键连接。 这一键防止了两个聚合物链段的宏观相分离，并导致多种纳米级组装体的形成，具体取决于单体的性质、链的分子量和少数组分体积分数。 虽然它们作为热塑性弹性体、压敏粘合剂和相容剂的用途广泛，但直到最近，纳米级的组成异质性才被用于制备其他纳米结构材料。 将研究使用有序嵌段共聚物模板制备纳米多孔材料的策略。 该研究的最终目标是制备含有对齐纳米孔、孔径分布窄且孔密度极高的聚合物整体材料。 提出了两种从有序嵌段共聚物制备多孔材料的通用策略。 一种使用具有可降解嵌段的嵌段共聚物，另一种使用一系列有趣的纳米材料的嵌段。 该提案中描述的工作取决于聚合物合成、超分子自组装和表征以及有序嵌段共聚物的固态化学的结合。%%%纳米长度尺度上的结构科学和技术是许多研究的核心倡议。 该提案中描述的研究涉及一个将对用于设计和合成新纳米材料的纳米结构模板和支架的开发产生重大影响的领域。 目标材料作为纳米结构支架、分离介质和光学器件将具有巨大的潜力。 此外，该计划还包括整合研究和教育活动的部分。 拟议的教育计划有两个主要方面。 第一个重点是高分子科学领域的研究生教育，第二个重点是新生水平的本科教育和成人继续教育。