SBIR Phase I: Chemical Sensors Based on Dendritic Polymers for Detection of Environmental Pollutants

*9660152 Kaiser该项目专注于开发一种新型化学传感器，用于检测包括氯代烃在内的各种挥发性有机碳污染物。准确和可靠地实现不同VOC之间的分子识别的能力将基于一种利用称为Starburstd9树枝状大分子的新型聚合物的聚合物单层。本项目将系统地研究这些纳米级球形聚合物的树枝状结构和化学组成之间的关系，以及它们区分具有不同官能团的化学分子的能力。将合成一系列设计的树枝状聚合物，并将其共价连接到金表面形成自组装单分子层，通过挑战树枝状大分子修饰的表面声波(SAW)与气相探针分子的质量平衡来确定树枝状大分子是否适合作为化学敏感界面。这将通过阐明分子机制和响应优化来促进新的传感器技术的发展。这项技术可以在健康和安全监测、环境补救、工业过程控制和汽车排放等领域开发可靠的、特定于应用的检测器。***

*** 9660152 Kaiser This project is focused on development of a new class of chemical sensors for detection of a variety of volatile organic carbon (VOC) pollutants, including chlorinated hydrocarbons. The ability to accurately and reliably achieve molecular discrimination between various VOC's will be based on a polymeric monolayer utilizing a new class of polymers called Starburstd9 dendrimers. This project will systematically examine the relationship between the dendritic structure and chemical composition of these nanoscopic-sized spheroidal polymers and their ability to differentiate between chemical molecules with a variety of functional groups. A designed series of dendritic polymers will be synthesized and will be covalently attached to a gold surface to form a self-assembled monolayer, and the suitability of the dendrimer to act as a chemically sensitive interface will be determined by challenging dendrimer-modified surface acoustic wave (SAW) mass balances with vapor-phase probe molecules. This will facilitate development of new sensor technology by elucidation of molecular mechanisms and response optimization. This technology could permit development of reliable, application-specific detectors in areas such as: health and safety monitoring, environmental remediation, industrial process control and auto emissions. ***