International Collaboration in Chemistry: Mechanochemical Probes of Supramolecular Polymer Networks

国际化学合作：超分子聚合物网络的机械化学探针

• 批准号: 1124694
• 负责人: Stephen Craig
• 金额: $ 42.5万
• 依托单位: Duke University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-10-01 至 2014-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1124694&HistoricalAwards=false
• 关键词: International; Collaboration; Chemistry; Mechanochemical; Probes

In this International Collaboration in Chemistry between US Investigators and their Counterparts Abroad (ICC) project funded by the Macromolecular, Supramolecular and Nanochemistry Program of the Chemistry Division and the Office of International Science and Engineering, Stephen Craig of Duke University will develop a molecular chemical strategy to characterize and understand the role of bond scission in the mechanical failure of polymers. This work includes an international collaboration with Prof. Rint Sijbesma of the Eindhoven University of Technology, The Netherlands. Profs. Sijbesma's work will be funded by De Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO). The approach is to synthesize polymers that contain dioxetane groups as luminescent probes of chain scission and to characterize the solution phase chain scission and photoemission from the polymers using a recently developed ultrasound-based technique. Knowledge gained from these studies will then be applied to understanding the roles bond scission events play in the mechanism of the mechanical failure of bulk polymer samples as well as newer supramolecular polymer networks. The broader impacts involve training graduate and undergraduate students, adding an international dimension to the training and education of these students, enhancing infrastructure for research and education through establishing this bilateral international collaboration, incorporating research concepts from this work into a high school outreach activity, and broadly disseminating research results through presentations at conferences and publications.Plastics are found in many facets of everyday life, including food packaging, structural materials for automotive and aerospace transportation, and lightweight electronic devices. This work might lead to new design principles to make stronger plastics which could be used to manufacture high performance, lightweight products for a range of applications.

在美国研究人员与国外同行（ICC）项目之间的这一国际合作中，由化学部的大分子，超分子和纳米化学计划以及国际科学与工程办公室资助，杜克大学的斯蒂芬·克雷格（Stephen Craig）将开发出一种分子化学策略，以制定一种特征和了解债券雕刻失败的作用。 这项工作包括与荷兰Eindhoven技术大学的Rint Sijbesma教授的国际合作。 教授。 Sijbesma的工作将由De Nederlandse Organisatie Voor Wetenschappelijk Onderzoek（NWO）资助。 这种方法是合成包含二乙烷基的聚合物作为链分裂发光的发光探针，并使用最近开发的基于超声的技术来表征聚合物的溶液相链分裂和光发射。 然后，从这些研究中获得的知识将应用于理解块状键盘事件在散装聚合物样品的机械故障以及较新的超分子聚合物网络的机理中起发挥作用的作用。 更广泛的影响涉及培训毕业生和本科生，在这些学生的培训和教育中增加了国际维度，通过建立这项双边国际合作，将研究概念纳入高中外展活动中，从而增强研究和教育的基础架构，并将其纳入一项高中活动，并通过构建材料的介绍为许多构造的材料和构造构建。航空运输和轻型电子设备。 这项工作可能会导致新的设计原理，以制造更强大的塑料，这些塑料可用于制造高性能，轻量级产品。