U.S.-France Cooperative Research: Control of Orientation ofLiquid Crystalline Polymers and Block Copolymers by Substrates and Applied Fields

这一为期两年的奖项为旨在了解如何控制液晶聚合物和液晶嵌段共聚材料的超分子结构的美法合作研究提供了支持。该项目涉及麻省理工学院的埃德温·L·托马斯和法国斯特拉斯堡查尔斯·萨德龙研究所的让-克洛德·威特曼和伯纳德·洛茨的研究小组。调查人员将对这些材料进行表征和处理。聚合物薄膜将在外加电场或磁场的情况下，在高度取向的聚四氟乙烯衬底上进行微相分离和液晶形成。这家美国研究小组将应用先进电子显微镜技术方面的专业知识带到了这次合作中。此外，法国在晶体物理和定向加工方面的专业知识也与之相辅相成。该项目将促进对液晶聚合物材料的衬底和现场加工及其光学应用的了解。

This two-year award provides support for US-France cooperative research aimed at understanding how to control super and molecular level structures of liquid crystalline polymers and liquid crystalline block copolymer materials. The project involves the research groups of Edwin L. Thomas at Massachusetts Institute of Technology and Jean- Claude Wittman and Bernard Lotz at the Institut Charles Sadron in Strasbourg, France. The investigators will characterize and process these materials. Thin films of polymer will be processed to undergo microphase separation and liquid crystal formation on highly oriented polytetrafluoroethylene substrates and under an applied electric or magnetic field. The US research group brings to this collaboration expertise in applied advanced electron microscopic techniques. This is complemented by French expertise in crystal physics and orientational processing. The project will advance understanding of substrate and field processing of liquid crystalline polymeric materials and their optical applications.