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

9975486 Composto这一为期三年的奖项支持美国和英国宾夕法尼亚大学的Russell Composto和英国谢菲尔德大学的Richard A.L. Jones之间在聚合物科学方面的合作研究。 研究人员将在分子水平和多相系统中研究聚合物界面现象的热力学和动力学原理。 低能前向反冲光谱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关键作用。 该研究将为优化多相薄膜聚合物共混物的表面、界面和体相性质提供参考。 这位美国研究人员为这次合作带来了低能前向反冲光谱法方面的专业知识。 英国在中子反射率方面的专业知识对此进行了补充。 该项目利用了目前在联合王国（卢瑟福-阿普尔顿实验室）和法国格勒诺布尔可用的独特的真实的时间中子源。

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.