Microstructures in Polymer Systems Containing Block Copolymers and/or Polyelectrolytes

含有嵌段共聚物和/或聚电解质的聚合物体系中的微观结构

• 批准号: 8921968
• 负责人: Benjamin Chu
• 金额: $ 29.31万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-05-15 至 1994-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8921968&HistoricalAwards=false
• 关键词: Microstructures; Polymer; Systems; Containing; Block

This research deals with polymer colloids and conducting polymers in solution. Studies on the block copoly(oxy- ethylene/oxypropylene/oxyethylene) will be carried out in the more difficult experimental range where multiple scattering could become a serious problem. The idea is to use very thin (0.1-0.5 mm) light-scattering cells and longer wavelength (ca. 0.8 micron), as well as small-angle x-ray scattering (SAXS) by means of a Bonse-Hart apparatus and possibly with the aid of synchrotron radiation. The purposes of the polymer colloid studies are several-fold, including methodology for characterization of micro-emulsions or micelles with specific interacting groups. For conducting polymers, the interesting phenomenon of charged rod aggregation in dilute solution is to be studied. Electrophoretic separation coupled with kinetic studies on the color change and the aggregation process may lead toward a better understanding on how color change and aggregation are related.

本研究涉及溶液中的聚合物胶体和导电聚合物。对嵌段共聚(氧乙烯/氧丙烯/氧乙烯)的研究将在更困难的实验范围内进行，在那里多重散射可能成为一个严重的问题。这个想法是使用非常薄(0.1-0.5毫米)的光散射室和更长的波长(约0.8微米)，以及借助Bonse-Hart设备的小角X射线散射(SAXS)，并可能借助同步辐射。聚合物胶体研究的目的是多方面的，包括表征具有特定相互作用基团的微乳液或胶束的方法学。对于导电聚合物，需要研究稀溶液中带电棒聚集的有趣现象。结合对颜色变化和聚集过程的动力学研究，电泳法分离可能有助于更好地理解颜色变化和聚集是如何相关的。