Integration of unexplored functional groups into polymer science

在这个由化学系大分子、超分子和纳米化学项目资助的项目中，Ned B。爱荷华州大学的鲍登将探索含有次磺酰胺和二氨基二硫重复单元的聚合物的合成，聚噻唑的同系物。 该方法是制备环状磺酰胺，然后研究其开环聚合的基本化学;开发用于将仲胺和二硫转移试剂逐步聚合成聚二氨基二硫化物的方法;最后合成并表征基于聚亚磺酰胺和聚二氨基二硫化物的半导体聚合物。 更广泛的影响包括访问当地学校进行化学演示，在爱荷华州博览会上举办展台向公众展示化学研究创新，每月的报纸专栏向公众传播科学，培训研究生和本科生，塑料是一种长链有机分子，存在于日常生活的许多方面。这些材料包括食品包装、汽车和航空航天运输的结构材料以及轻型电子设备。 这项研究将探索在聚合物链中包含硫和氮原子的新方法，这可能会影响从电导率到对水解敏感性的性能。 这些研究的结果可以促进获得高性能的有机电子或发光器件以及对环境敏感的材料。

In this project funded by the Macromolecular, Supramolecular and Nanochemistry Program of the Chemistry Division, Ned B. Bowden of the University of Iowa will explore the synthesis of polymers containing the sulfenamide and the diaminodisulfide repeat unit, congeners of polythiazyl. The approach is to prepare cyclic sulfonamides and then investigate the fundamental chemistry of their ring-opening polymerization; to develop methods for the step-growth polymerization of secondary amines and disulfur transfer reagents into polydiaminodisulfides; and finally to synthesize and characterize semiconducting polymers based on polysulfenamides and polydiaminodisulfides. The broader impacts involve visiting local schools to present chemistry demonstrations, hosting a booth at the Iowa State Fair to present chemical research innovations to the general public, a monthly newspaper column to communicate science to the general public, training graduate and undergraduate students, and broadly disseminating research results in a variety of formats.Plastics are long chain organic molecules and are found in many facets of everyday life, including food packaging, structural materials for automotive and aerospace transportation, and lightweight electronic devices. This research will explore new approaches to include sulfur and nitrogen atoms within the polymer chain, which can impact properties ranging from electrical conductivity to susceptibility to water hydrolysis. The results of the studies could facilitate access to high performing organic electronic or light-emitting devices as well as environmentally responsive materials.