Functional Polyarylene Networks

技术概述：提出的研究描述了一种新的聚酰胺和杂化分子复合材料家族，可用于各种高性能，薄膜网络和高产碳应用。作为一类通用材料，聚丙烯目前受到较差的熔体和溶液可加工性的限制，而传统的提高可加工性的策略通常会牺牲性能。为了克服这些问题，先前的NSF资助已经能够从可处理的中间体中开发出多功能的聚丙烯网络家族。一般的合成方法需要三步从商业双酚和提供高产量的双邻二乙烯烯（BODA）单体。当加热时，BODA四烷发生伯格曼环聚合，形成支化的中间反应性低聚物，从而可加工。溶液或熔体制造和进一步的热固化导致高性能网络，电活性和发光材料，以及高产量的半导体玻璃碳。提出了新的BODA衍生材料的合成目标是应用于重要的新兴领域，包括燃料电池，光伏，发光器件，光子传感器和无机/碳混合复合材料。非技术概述：该研究描述了一种新型塑料的合成和研究，这种塑料在太阳能、氢燃料电池、发光器件和化学/生物传感器等新兴和具有重要战略意义的领域有潜在的应用。该技术的独特优势包括能够在形成塑料结构的同时形成涂层和成型部件。这种类型的塑料结构在过去是很难加工的。该项目还包括许多更广泛的影响，重点是促进多学科研究生培训，行业导师的项目管理，以及K-12教师和学生的外展。具体来说，外展活动将集中在三个领域：K-12教师培训研讨会，使用日常塑料传达科学概念，K-12化学示范路演，以及克莱姆森新兴学者计划。后者是克莱姆森大学的一个为期三周的项目，对象是南卡罗来纳州几百名经济困难、主要是少数族裔的高中生。该项目的一个特殊元素是管理计划，该计划将包括教师和研究生项目管理，通过当前的国家科学基金会探索队奖学金资助，在探索队高级研究员之一作为工业导师的指导下。

TECHNICAL SUMMARYThe proposed research describes a new family of polyarylenes and hybrid molecular composites useful in a variety of high performance, thin film network, and high yield carbon applications. As a general class, polyarylenes are currently limited by poor melt and solution processability and traditional strategies to improve processability typically sacrifice performance. In an effort to overcome these issues, prior NSF funding has enabled the development of a versatile family of polyarylene networks from processable intermediates. The general synthetic approach requires three steps from commercial bisphenols and affords bis-ortho-diynylarene (BODA) monomers in high yield. When heated, BODA tetraynes undergo Bergman cyclopolymerization to branched - and thus processable - intermediate reactive oligomers. Solution or melt fabrication and further thermal cure results in high performance networks, electroactive and light emissive materials, and high yield semiconductor glassy carbon. The synthesis of new BODA derived materials is proposed targeted for applications in important emerging areas including fuel cells, photo-voltaics, light emissive devices, photonic sensors, and inorganic / carbon hybrid composites. NON-TECHNICAL SUMMARYThe proposed research describes synthesis and study of a new family of plastics which have potential applications in emerging and strategically important fields such as solar energy, hydrogen fuel cells, light emitting devices, and chem/bio sensors. The unique advantage of this technology includes the ability to form coatings and molded parts while forming the plastic structure at the same time. Plastic structures of this type have been very difficult to process in the past. The project also includes many broader impacts focused on the promotion of multi-disciplinary graduate training, project stewardship from an industrial mentor, and K-12 teacher and student outreach. Specifically, outreach activities will be focused in three areas: K-12 teacher training workshops on using everyday plastics to convey scientific concepts, K-12 chemistry demonstration road shows, and the Clemson Emerging Scholars Program. The latter is a three week program at Clemson for several hundred economically disadvantaged and primarily minority high school students in South Carolina. A special element of the project is the management plan which will include faculty and graduate student project stewardship through the current NSF Discovery Corps Fellowship Grant under the direction of one of the Discovery Corps Sr. Fellows as industrial mentor.