A composite material for sensing a chemical species in a medium is provided. The composite material includes a polymer having a glass transition temperature, a porosity promoter dispersed in the polymer in an amount such that the chemical species is transportable from the medium into the composite material at a temperature below the glass transition temperature, and a chemical indicator dispersed in the composite material, the chemical indicator providing an optical response varying with a concentration of the chemical species in the composite material.
提供了一种用于感知介质中
化学物质的复合材料。复合材料包括具有
玻璃化转变温度的聚合物、分散在聚合物中的孔隙度
促进剂(其用量应能使
化学物质在低于
玻璃化转变温度的温度下从介质传输到复合材料中)以及分散在复合材料中的
化学指示剂,
化学指示剂提供随复合材料中
化学物质浓度变化而变化的光学响应。