Microstructured Macromolecular Soft Materials

微结构高分子软材料

• 批准号: 9223966
• 负责人: William Russel
• 金额: $ 210万
• 依托单位: Princeton University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-08-15 至 1995-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9223966&HistoricalAwards=false
• 关键词: Microstructured; Macromolecular; Soft; Materials

9223966 Russell This award is to start a new Materials Research Group (MRG) at Princeton University on the topic of microstructured macromolecular soft materials. The goal of the research is to understand, control, and exploit these materials. The research addresses three major themes: (1) block copolymers where the meso-scale morphology is determined by block lengths and thermodynamic incompatibilities of the constituents, (2) polymer-particle dispersions where the attachment of the block copolymer at an interface leads to ordering in the colloidal phase, (3) study of the properties of complex structured fluids. These three themes involve research on dynamics of ordering, effects of shear on ordering, use of phase separated systems as templates for nano-lithography, effects of block copolymer structure on adsorption and ordering, tailoring of fluid rheology through control of microstructure. Microstructured soft materials order on the length scale of ten to hundred nanometers, where structure formation or self assembly occurs in the fluid state. Structure formation is determined by the balance among structural entropy, steric energy, and electrostatic forces. Examples of microstructured soft materials include motor oils and lubricants, colloidal additives to plastics, thermoplastic elastomers, paints and coatings, drilling fluids, nano-lithography for electronics, and nonlinear optics. The research involves collaboration with Exxon Corporate Research Laboratories. The institutional environment at Princeton University is excellent for training advanced students for careers in research and teaching. ***

小行星9223966 该奖项是在普林斯顿大学启动一个新的材料研究小组（MRG），主题是微结构高分子软材料。 研究的目的是了解、控制和利用这些材料。 本研究主要涉及三个主题：（1）嵌段共聚物，其中介观尺度形态由嵌段长度和组分的热力学不相容性决定， (2)聚合物-颗粒分散体，其中嵌段共聚物在界面处的连接导致胶体相中的有序化，（3）复杂结构流体的性质的研究。 这三个主题涉及有序化的动力学研究，剪切对有序化的影响，使用相分离系统作为纳米光刻的模板，嵌段共聚物结构对吸附和有序化的影响，通过控制微观结构来定制流体流变学。 微结构化软材料在10至100纳米的长度尺度上有序排列，其中结构形成或自组装在流体状态下发生。 结构的形成取决于结构熵、空间位能和静电力之间的平衡。 微结构化软材料的实例包括机油和润滑剂、塑料的胶体添加剂、热塑性弹性体、油漆和涂料、钻井液、用于电子学的纳米光刻和非线性光学。 这项研究涉及与埃克森公司研究实验室的合作。 普林斯顿大学的制度环境非常适合培养高级学生从事研究和教学。 ***