Tailoring the Interfacial Properties of Multi-Phase Polymer Blends

定制多相聚合物共混物的界面特性

• 批准号: 9526357
• 负责人: Russell Composto
• 金额: $ 31.4万
• 依托单位: University of Pennsylvania
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-04-01 至 2000-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9526357&HistoricalAwards=false
• 关键词: Tailoring; Interfacial; Properties; Multi; Phase

9526357 Composto The proposed resesarch on A/B:C blends will be the first attempt to study the behavior of the complex interfacial profiles and properties associated with three-component, two- phase systems. Both model and commercial systems will be studied including polystyrene blends and poly(methyl methacrylate blends. The interfacial properties will be modeled using the self-consistent field method. To complement these direct profiling measurements, neutron reflectivity experiments will be carried out at National Laboratories. In the third phase of the proposed research, the physics which underlies the wetting transition will be studied using a three-component polymer blend as a model system. %%% These studies may allow a polymer engineer to tune the morphology of complex blends by simply varying the degree of polymerization or concentration to achieve either encapsulated or separated phase domains. In addition to their intrinsic interest, the interfacial segregation and wetting studies on three-component systems will serve as a springboard for understanding more complicated systems such as those containing four-components and three-phases. ***

对A/B：C共混物的拟议研究将是研究与三组分两相体系相关的复杂界面分布和性质的行为的首次尝试。 模型和商业系统都将被研究，包括聚苯乙烯共混物和聚甲基丙烯酸甲酯共混物。 界面性质将使用自洽场方法建模。 为了补充这些直接剖面测量，将在国家实验室进行中子反射率实验。 在拟议的研究的第三阶段，物理基础的润湿过渡将使用三组分聚合物共混物作为模型系统进行研究。 这些研究可以使聚合物工程师通过简单地改变聚合度或浓度来调整复杂共混物的形态，以实现包封或分离的相域。 除了他们的内在利益，界面偏析和润湿的三组分系统的研究将作为一个跳板，了解更复杂的系统，如那些包含四个组件和三相。 ***