CAREER: Real-Space Measurement of Structure and Director Configuration in 3-D: A Study using Laser Scanning Confocal Microscopy

职业：3D 结构和导向器配置的实空间测量：使用激光扫描共焦显微镜的研究

• 批准号: 9875646
• 负责人: Mohan Srinivasarao
• 金额: $ 30.3万
• 依托单位: North Carolina State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-02-15 至 2000-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9875646&HistoricalAwards=false
• 关键词: CAREER; Real; Space; Measurement; Structure

9875646SrinivasaraoThis proposal is focused on the use of polymer dispersed liquid crystals (PDLCs) for display devices. Polymer dispersed liquid crystals consist of micron size drops of small molecule (nematic) liquid crystals embedded or trapped in a polymer matrix formed by photopolymerization. The aim of the proposal is to understand the dynamics of domain growth in a reactive medium that is undergoing phase separation. A laser scanning confocal microscope (LSCM) will be utilized to make measurements confirming growth laws operable in these systems, and to develop methods of imaging director configurations in complicated morphologies in three dimension. Such methods should find applications in a variety of other areas besides the materials under study in this proposal. The integration of this research with education goals will provide a very stimulating environment for students both at the undergraduate and graduate levels. The integration of research and education to be implemented in this project will provide students with a very broad education that crosses disciplinary boundaries, requiring knowledge of physics of liquid crystals, chemistry, optics, and polymer chemistry.%%%Organic thin films are utilized in various technological applications. Their role in display devices is a case in point. The use of devices for displaying information that use liquid crystals are quite pervasive as is evidenced by their use in laptop computer screens. This particular approach to the integration of research with education will expose both undergraduate and graduate students to interdisciplinary research that provides a glimpse of what is to follow in industrial settings. The biggest impact will be in educating young minds and preparing young scientists and engineers to compete in future job markets. These outreach activities are also designed to help educate high school teachers on issues that are pertinent to society in this "age of plastics".

9875646Srinivasarao 该提案的重点是在显示设备中使用聚合物分散液晶 (PDLC)。 聚合物分散液晶由嵌入或捕获在通过光聚合形成的聚合物基质中的微米大小的小分子（向列）液晶滴组成。 该提案的目的是了解正在经历相分离的反应介质中域生长的动态。 将利用激光扫描共焦显微镜（LSCM）进行测量，确认这些系统中可操作的生长规律，并开发三维复杂形态中的成像导向器配置方法。 除了本提案中研究的材料之外，这些方法还应该在其他各种领域找到应用。 这项研究与教育目标的结合将为本科生和研究生提供一个非常刺激的环境。 该项目将实施的研究和教育一体化将为学生提供非常广泛的跨学科教育，需要液晶物理、化学、光学和高分子化学知识。%%%有机薄膜用于各种技术应用。 它们在显示设备中的作用就是一个很好的例子。 使用液晶来显示信息的设备的使用相当普遍，如它们在笔记本电脑屏幕中的使用所证明的那样。 这种将研究与教育相结合的特殊方法将使本科生和研究生接触到跨学科研究，从而了解工业环境中的未来发展。 最大的影响将是教育年轻人，让年轻科学家和工程师做好在未来就业市场竞争的准备。 这些外展活动还旨在帮助高中教师了解与这个“塑料时代”社会相关的问题。