Design and Engineering of Polymer Crystal Surfaces and Interfaces

聚合物晶体表面和界面的设计与工程

• 批准号: 0516602
• 负责人: Stephen Z. Cheng
• 金额: --
• 依托单位: University of Akron
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-06-01 至 2009-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0516602&HistoricalAwards=false
• 关键词: Design; Engineering; Polymer; Crystal; Surfaces

This interdisciplinary project develops the science of designing and engineering the polymer crystal surfaces and interfaces needed for surface- and nano-technologies such as surface nano-patterns and responsive chemical sensors. The core idea of the research is to utilize lamellar single crystals of designed amorphous(A)-crystalline(C) di- and triblock copolymers to control polymer single crystal surface properties. A-C diblock copolymer single crystals will be used to determine the theoretically and technologically important onset of tethered chain overcrowding and stretching. They will also be used to determine the affect of tethered chain density and defects on crystallization under nano-confinement. Single crystals of A-A-C linear and "Y" shaped triblocks will be used to investigate near two-dimensional nano-phase separation, phase transitions, and morphologies. A-C-A linear triblock copolymers will be used to create switchable/tunable twisted and scrolled crystal morphologies for constructing supra-molecular structures with advanced optical or bio-mimetic properties. In addition to the undergraduate, graduate, and post-doctoral training and course development, documentary archives of crystal structures and morphologies will be compiled and made available on the Internet.%%%This interdisciplinary project develops the science of designing and engineering polymer crystal surfaces and interfaces needed for surface- and nano-technologies such as surface nano-patterns, responsive chemical sensors, and supra-molecular structures possessing advanced optical or bio-mimetic properties. This task will be accomplished by utilizing specially designed polymers in conjunction with innovative crystallization techniques to create highly versatile and functional crystal templates on the nanoscale. These templates, along with the science derived from them, will form a foundation upon which an entire branch of nanoscience and nanotechnology will be conducted. During the course of this research, graduate and post-doctoral associates will be trained in cutting edge synthesis and crystal growth techniques, while undergraduates will gain valuable research experience, and be encouraged to continue the pursuit of science. Additionally, published and unpublished crystal structures and morphologies from scientists world-wide will be collected, categorized, computerized, and made available to the public through the Internet.

这个跨学科的项目开发了设计和工程的聚合物晶体表面和界面所需的表面和纳米技术，如表面纳米图案和响应化学传感器的科学。研究的核心思想是利用设计的无定形（A）-结晶（C）二嵌段和三嵌段共聚物的层状单晶来控制聚合物单晶的表面性质。A-C二嵌段共聚物单晶将用于确定理论和技术上重要的拴系链的过度拥挤和拉伸的发生。 它们也将被用来确定束缚链密度和缺陷对纳米约束下结晶的影响。 A-A-C线性和“Y”形三嵌段的单晶将用于研究近二维纳米相分离、相变和形貌。A-C-A线性三嵌段共聚物将用于产生可切换/可调谐的扭曲和滚动晶体形态，用于构建具有先进光学或仿生性质的超分子结构。除了本科生、研究生和博士后培训和课程开发外，还将汇编晶体结构和形态的文献档案，并在互联网上提供。这个跨学科项目开发了设计和工程聚合物晶体表面和表面和纳米技术所需的界面的科学，如表面纳米图案，响应化学传感器和具有先进的光学或仿生特性的超分子结构。这项任务将通过利用专门设计的聚合物结合创新的结晶技术来实现，以在纳米级上创建高度通用和功能性的晶体模板。这些模板，连同沿着而来的科学，将形成一个基础，在此基础上，纳米科学和纳米技术的整个分支将进行。 在这项研究的过程中，研究生和博士后助理将接受尖端合成和晶体生长技术的培训，而本科生将获得宝贵的研究经验，并被鼓励继续追求科学。此外，世界各地科学家发表和未发表的晶体结构和形态将被收集、分类、计算机化，并通过互联网向公众提供。