Conductive-Polymer Filaments for Sensors

传感器用导电聚合物丝

• 批准号: 9520168
• 负责人: Dale Barkey
• 金额: $ 5万
• 依托单位: University of New Hampshire
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-03-15 至 1996-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9520168&HistoricalAwards=false
• 关键词: Conductive; Polymer; Filaments; Sensors

Abstract - Barkey - SGER There are a number of technological applications of intrinsically conductive polymers. The unique advantages of electrochemical fabrication of intrinsically conductive polymers include the ability to reproduce surface structure with high fidelity. Electrochemically fabricated conductive-polymer microfilaments will be evaluated for potential application as sensors. The principle of the application is the dependence of polymer conductivity on oxidation state and the doping effect of absorbed compounds. The evaluation will focus on the differential response of polymer conductivity to complete and incomplete combustion gases, where the latter act as reducing agents which should lower the conductivity of the filaments. Filaments of poly (3-methyl thiophene) of diameters less than 100 nanometers have been fabricated by the PI by electrooxidative polymerization across a highly ordered poly(tetra fluoroethylene) thin-layer. The polymer grows in the form of filaments which follow the microstructure of the PTFE layer, producing a regular array or grating. The small size of the filaments allows very rapid diffusive response of the material. This exploratory project will determine if the principle of operation can be applied to detection of incomplete combustion products in flue gases, and lay a foundation for further development and application of this new structure.

摘要- Barkey - SGER 本征导电聚合物有许多技术应用。 本征导电聚合物的电化学制造的独特优点包括以高保真度再现表面结构的能力。 电化学制造的导电聚合物微丝将被评估作为传感器的潜在应用。 该应用的原理是聚合物导电性对氧化态和吸附化合物的掺杂效应的依赖性。 评估将集中在聚合物电导率对完全和不完全燃烧气体的不同响应上，其中后者充当还原剂，其应降低长丝的电导率。 聚（3-甲基噻吩）的直径小于100纳米的长丝已制造的PI通过电氧化聚合跨越高度有序的聚（四氟乙烯）薄层。 聚合物以细丝的形式生长，其遵循PTFE层的微观结构，产生规则的阵列或光栅。 细丝的小尺寸允许材料的非常快速的扩散响应。 该探索性项目将确定其工作原理是否可应用于烟气中不完全燃烧产物的检测，并为这种新结构的进一步开发和应用奠定基础。