CAREER: Structure and Rheology of Soft Attractive Colloids: Interactions Due to Bridging Polymers and Applications to Fluorocarbon Gels

职业：软吸引胶体的结构和流变学：桥联聚合物的相互作用及其在氟碳凝胶中的应用

• 批准号: 0238873
• 负责人: Surita Bhatia
• 金额: $ 40万
• 依托单位: University of Massachusetts Amherst
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-03-01 至 2009-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0238873&HistoricalAwards=false
• 关键词: CAREER; Structure; Rheology; Soft; Attractive

ABSTRACTCTS-0238873S. BhatiaU. of Massachusetts AmherstThis project is focused on investigating the structure and rheology of soft attractive gels. The specific system proposed is water-in-fluorocarbon emulsions in which the gel transition is produced by attractive polymer bridging interactions. The PI will perform rheology, neutron scattering and dynamic light scattering measurements to determine the nature of the interaction forces and the gel structure. The concentration and molecular weight of the polymer will be varied to control the magnitude and range of the bridging attraction. In addition to the experiments, the PI proposes theoretical experiments to predict the magnitude of the bridging attraction and to improve the available model to include interactions between the polymer chains themselves.

Abstractcts-0238873S。 bhatiau。马萨诸塞州阿默斯特（Amherstthis）项目的重点是研究柔软有吸引力的凝胶的结构和流变。提出的特定系统是氟化碳乳液中的水，其中凝胶过渡是由有吸引力的聚合物桥接相互作用产生的。 PI将执行流变学，中子散射和动态光散射测量，以确定相互作用力和凝胶结构的性质。聚合物的浓度和分子量将变化，以控制桥接吸引力的大小和范围。除了实验外，PI还提出了理论实验，以预测桥接吸引力的大小，并改善可用模型以包括聚合物链本身之间的相互作用。