Specific Interactions in Polymer Systems

在以前的工作中，这个小组已经开发了一个模型， 聚合物中的氢键相互作用。 在实验研究中 到目前为止，该小组已经成功地测试了 该模型预测各种材料的相行为的广泛趋势， 系统 在即将进行的研究中， 对有效性程度进行更定量的研究 这种方法。 这项工作将包括： 我们需要考虑“自由体积”的程度; B）FTIR 仔细选择的共聚物体系的研究; c） 共混物的熔点降低，其中一种组分 （d）散射研究，与 NIST的Charles Han博士。 长期目标是了解和预测相行为 聚合物混合物，涉及强定向特异性 交互.

In previous work, this group has developed a model that describes hydrogen bonding interactions in polymers. In experimental studies to this point, the group has successfully tested the ability of this model to predict broad trends in the phase behavior of various system. In the research to be carried out, an attempt will be made to develop a much more quantitative study of the degree of validity of this approach. The work will include: a) An investigation of the extent to which we need to account for "free volume"; b) FTIR studies of carefully selected copolymer systems; c) Studies of melting point depression in blends where one component crystallizes; d) Scattering studies, in collaboration with Dr. Charles Han of NIST. The long-term goal is to understand and predict the phase behavior of polymeric mixtures that involve strong directionally specific interactions.