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

0307107 Tonelli这个为期三年的奖项授予美国和西班牙在聚合物加工领域的合作，获奖者包括来自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与技术研究所的玛丽安·戈麦斯。该项目的目标是系统地探索使用包合物作为提高等规聚丙烯(i-PP)性能的一种方法。他们将确定环糊精包合物(CD-IC)与I-PP及其共混物中使用的弹性体形成的条件，从CD-IC研究I-PP聚合后的形态和性能，研究由CD-IC晶体通过聚合形成的亲密I-PP/弹性体共混物的性能和形态，并将CD-IC路线加工的I-PP/弹性体共混物与相同组成但通过传统方法加工的材料的性能进行比较。美国研究人员带来了在聚合物CD-IC制备方面的专业知识，并用核磁共振、FTIR、X射线衍射和热分析技术对其进行了表征。他们的专长还包括聚合物形态、小分子在聚合物中的吸附和扩散，以及结构与性能的关系。此外，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拥有丰富的经验。预计合作的结果将有助于更好地理解聚合物从CD-IC结合后可能获得的独特形态和性质的机制。这项研究的更广泛的影响在于有机会生产基于i-PP的新的和改进的材料。

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.