RUI: Phase Separation Kinetics of Ternary Polymer Blends Containing a Random Copolymer

RUI：含有无规共聚物的三元聚合物共混物的相分离动力学

• 批准号: 9705424
• 负责人: Dean Waldow
• 金额: $ 9.36万
• 依托单位: Pacific Lutheran University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-06-01 至 2000-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9705424&HistoricalAwards=false
• 关键词: RUI; Phase; Separation; Kinetics; Ternary

9705424 Waldow This Research in Undergraduate Institutions (RUI) award is for three years of support for a research program involving undergraduate students to study phase separation kinetics of a ternary polymer system. %%% Pesearch training is an integral component of a broad chemical education for undergraduate students. This research will complement the growing commitment to undergraduate research and will allow greater integration of research and teaching. The research plan focuses on kinetics of phase separation in binary polymer blends compatibilized with a random copolymer. The specific system is polybutadiene, polystyrene, and a random copolymer of butadiene and styrene. The phase separation kinetics will be measured using a temperature jump wide angle light scattering instrument constructed at Pacific Lutheran University (PLU). The resulting light scattering information will be compared with nucleation and growth as well as with spinodal decomposition theories. The results from these kinetics of phase separation studies (1) will provide new information about the effect a random copolymer has as a compatibilizer;(2) will help in making comparisons to theory and simulations;(3) will allow comparisons of efficacy of random copolymers as compared to published work on block copolymers; and lastly (4) may lead to information used in the design of random copolymer compatibilizers. ***

9705424 Waldow本科院校（RUI）的这项研究奖是为三年的研究计划提供支持，该计划涉及本科生研究三元聚合物体系的相分离动力学。 %农药培训是本科生广泛化学教育的一个组成部分。 这项研究将补充对本科研究的日益增长的承诺，并将使研究和教学更大的整合。 本研究计划主要研究无规共聚物增容的二元聚合物共混物的相分离动力学。 具体的体系是聚丁二烯、聚苯乙烯以及丁二烯和苯乙烯的无规共聚物。 相分离动力学将使用在太平洋路德大学（PLU）建造的温度跳跃广角光散射仪进行测量。 所得到的光散射信息将比较成核和生长，以及与spinodal分解理论。 这些相分离动力学研究的结果（1）将提供关于无规共聚物作为增容剂的效果的新信息;（2）将有助于与理论和模拟进行比较;（3）将允许与关于嵌段共聚物的公开工作相比，对无规共聚物的功效进行比较;和最后（4）可导致在无规共聚物增容剂的设计中使用的信息。 ***