SGER: Feasibility of Reactive Extrusion of Nanostructured Polymer Blends

SGER：纳米结构聚合物共混物反应挤出的可行性

• 批准号: 0122925
• 负责人: Joshua Otaigbe
• 金额: $ 6.96万
• 依托单位: Iowa State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-08-01 至 2002-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0122925&HistoricalAwards=false
• 关键词: SGER; Feasibility; Reactive; Extrusion; Nanostructured

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.

摘要：Joshua U.Otaigbe研究所：爱荷华州立大学提案编号：0122925这是一笔小额探索性研究补助金(SGER)，使首席研究员(PI)能够探索基于环酰胺在诸如聚丙烯(PP)等商业聚合物的基质中的快速阴离子开环聚合的反应挤出的可行性，以产生具有独特性能的纳米结构PP/聚酰胺6共混物。之所以使用“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度低于100纳米。本研究旨在论证在环酰胺开环聚合反应挤出过程中产生这些结构的概念。纳米结构聚合物共混物具有潜在的多功能性，将在光学、药物输送、组织工程和分离现象的渗透膜等方面得到应用。聚合物共混物是获得新型聚合物材料的一种方法。全球使用的商用聚合物中有30%以上是聚合物弯曲体或合金。例如，丙烯腈共聚物和聚丁二烯接枝的苯乙烯-丙烯腈共聚物。聚合物共混物在熔融共混过程中的形态演变还知之甚少，预测这种形态演变的能力是本项目的目标之一。