SGER: Feasibility of Reactive Extrusion of Nanostructured Polymer Blends

项目负责人：Joshua U. Otaigbe机构：爱荷华州立大学提案号：0122925这是一笔探索性研究（SGER）的小额资助，目的是让首席研究员（PI）在聚丙烯（PP）等商业聚合物的基体上，探索基于快速阴离子开环聚合环酰胺的反应挤出的可行性，从而生产出具有独特性能的纳米结构PP/聚酰胺6共混物。使用“纳米结构”是因为一种聚合物相在另一种聚合物相中的分散小于100纳米。该研究是为了证明在反应挤出中使用环酰胺开环聚合产生这些结构的概念。纳米结构聚合物混合物的潜在多功能性将使它们在光学、药物输送、组织工程和分离现象的渗透膜等应用中发挥重要作用。聚合物共混是制备新型高分子材料的一种方法。世界范围内超过30%的商用聚合物是聚合物弯管或合金。丙烯腈共聚物和聚丁烯接枝苯乙烯-丙烯腈共聚物就是一个例子。聚合物共混物熔体共混过程中的形态演变尚不清楚，预测这种形态演变的能力是本项目的目标。

ABSTRACTPI: Joshua U. Otaigbe Institution: Iowa State University Proposal Number: 0122925This is a Small Grant for Exploratory Research (SGER) to enable the principal investigator (PI) to explore the feasibility of reactive extrusion based on the fast anionic ring-opening polymerization of cyclic amides in a matrix of a commercial polymer such as polypropylene (PP), to yield a nanostructured PP/polyamide 6 blend with unique properties. "Nanostructured" is used because the dispersion of one polymer phase in the other is below 100 nanometers. The research is to demonstrate proof of concept of generating these structures in reactive extrusion using ring-opening polymerization of cyclic amides. The potential versatility of the nanostructures polymer blends will make them useful in applications such as optics, drug delivery, tissue engineering and permeable membranes for separation phenomena.Blending of polymers is one method used to obtain new polymeric materials. Over 30% of commercial polymers used worldwide are polymer bends or alloys. An example is acrylonitrile copolymer and polybudatiene grafted styrene-acrylontitrile copolymer. The evolution of morphology during melt blending of a polymer blend is poorly understood and the ability to predict this morphological evolution is a goal of this project.