US-Spain Cooperative Research: Polymers Processed with Cyclodextrin Inclusion Compounds: Application to Isotactic Polypropylene Blends and Composites

0307107Tonelli这项为期三年的美国-西班牙聚合物加工合作奖的获得者是北卡罗来纳州立大学的Alan Tonelli和C. Maurice Balik，以及西班牙马德里聚合物科学技术研究所的Marian Gomez。该项目的目标是系统地探索包合物的使用，作为提高等规聚丙烯（i-PP）性能的一种方式。他们将确定环糊精包合物（CD-ICs）与i-PP及其共混物中使用的弹性体形成的条件，研究i-PP与CD-IC聚结后的形态和性能，研究由共同的CD-IC晶体聚结形成的亲密i-PP/弹性体共混物的性质和形貌。并将CD-IC路线加工的i-PP/弹性体共混物与传统方法加工的相同成分材料的性能进行比较。美国研究人员为此次合作带来了聚合物cd - ic制备方面的专业知识，并用核磁共振、红外光谱、x射线衍射和热分析技术对其进行表征。他们的专业知识还包括聚合物形态、小分子在聚合物中的吸附和扩散，以及结构-性能关系。西班牙研究人员在i-PP/弹性体共混物和复合材料的制备和表征方面的丰富经验补充了这一点。合作的结果有望提高对CD-ICs聚结后聚合物可能获得的独特形态和性能的机制的理解。这项研究更广泛的影响在于有机会生产基于i-PP的新型和改进的材料。

0307107TonelliThis three-year award for US-Spanish collaboration in polymer processing involves Alan Tonelli and C. Maurice Balik of North Carolina State University and Marian Gomez of the Institute of Science and Technology of Polymers in Madrid, Spain. The objectives of the project are to explore systematically the use of inclusion compounds as a way of enhancing the properties of isotactic polypropylene(i-PP). They will determine the conditions under which cyclodextrin inclusion compounds (CD-ICs) can be formed with i-PP and the elastomers used in its blends, study the morphology and properties of i-PP after its coalescence from its CD-IC, study the properties and morphology of intimate i-PP/elastomer blends formed via coalescence from their common CD-IC crystals, and compare the properties of i-PP/elastomer blends processed via the CD-IC route with materials of identical composition but processed via traditional methods. The US researchers bring to the collaboration expertise in the preparation of polymer CD-ICs and characterizing them with NMR, FTIR, x-ray diffraction and thermal analysis techniques. Their expertise also includes polymer morphology, sorption, and diffusion of small molecules through polymers, and structure-property relationships. This is complemented by the Spanish researcher's extensive experience in the preparation and characterization of i-PP/elastomer blends and composites. The results of the collaboration are expected to an improved understanding of the mechanisms responsible for the unique morphologies and properties polymers might obtain after coalescence from their CD-ICs. The broader impact of this research lie in the opportunity to produce new and improved materials based on i-PP.