U.S.-U.K. Cooperative Research: Small Molecule Interfacial Segregation in Multi-Phase Thin Film Polymer Blends

美英合作研究：多相薄膜聚合物共混物中的小分子界面偏析

• 批准号: 9975486
• 负责人: Russell Composto
• 金额: $ 1.5万
• 依托单位: University of Pennsylvania
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-08-01 至 2004-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9975486&HistoricalAwards=false
• 关键词: U.S.; U.K.; Cooperative; Research; Small

9975486CompostoThis three-year award supports US-UK collaborative research in polymer science between Russell Composto of the University of Pennsylvania and Richard A.L. Jones of the University of Sheffield in the United Kingdom. The investigators will study the thermodynamic and kinetic principles underlying polymer interfacial phenomena at the molecular level and in multi-phase systems. Complementary techniques of low-energy forward recoil spectrometry and neutron reflectivity will be used to measure interfacial excess of small molecules, and the effect of small molecule composition, chain length and polarity on interfacial properties. Polymer interfaces play a critical role in technologically important areas including food packaging, protective coatings, adhesives, and biocompatibility. The proposed research will advance understanding for optimizing the surface, interface and bulk properties of multi-phase thin film polymer blends. The US investigator brings to this collaboration expertise in low-energy forward recoil spectrometry. This is complemented by British expertise in neutron reflectivity. The project takes advantage of unique, real time, neutron sources currently availability in the United Kingdom (Rutherford-Appleton Laboratory) and in Grenoble, France.

9975486Composto 这个为期三年的奖项支持宾夕法尼亚大学的 Russell Composto 和英国谢菲尔德大学的 Richard A.L. Jones 之间在聚合物科学领域的美英合作研究。 研究人员将研究分子水平和多相系统中聚合物界面现象的热力学和动力学原理。 低能正向反冲光谱法和中子反射率的互补技术将用于测量小分子的界面过量，以及小分子组成、链长和极性对界面性质的影响。 聚合物界面在食品包装、保护涂层、粘合剂和生物相容性等重要技术领域发挥着至关重要的作用。 拟议的研究将增进对优化多相薄膜聚合物共混物的表面、界面和本体性能的理解。 美国研究人员为此次合作带来了低能前向反冲光谱测定方面的专业知识。 英国在中子反射率方面的专业知识对此进行了补充。 该项目利用了英国（卢瑟福-阿普尔顿实验室）和法国格勒诺布尔目前可用的独特、实时中子源。