Nanoporous polymer membranes for Sensor Technology

膜式气体传感器具有快速检测二氧化碳浓度的功能，应用范围从海洋测量到石油和天然气工业。气体传感器的响应时间受到目标分析物通过膜的渗透性的限制。商业二氧化碳透膜，如PDMS，具有低的透气性和透气性，选择性差。本课题旨在利用固有微孔聚合物（PIMs）的高CO2渗透性膜材料设计和制造新型气体渗透膜。我们的目标是实现高CO2气体渗透率（2000 GPU以上）和对水的高选择性。我们还将把膜集成到传感器设备中，并评估设备的性能，这将为改进膜设计和表面改性提供反馈，以提高抗生物污染和老化的能力。

Membrane gas sensors with rapid detection of CO2 concentration have applications ranging from oceanic measurements to the oil and gas industry. The response time of the gas sensors, which inc_orporates a gas permeable membrane, is inherently limited by the permeance of the targeted analyte through the membrane. Commercial CO2- permeable membranes, such as PDMS, have low gas permeability and permeance and poor selectivity.This proposal aims to design and fabricate new gas permeable membranes using high CO2 permeability membrane materials known as polymers of intrinsic microporosity (PIMs). We aim to achieve high CO2 gas permeance (above 2000 GPU) and high selectivity towards water. We will also integrate the membranes in the sensor device and evaluate the performance in the device which will provide feedback for improvement of the membrane design and surface modification for improvement of resistance towards biofouling and ageing.