Nanoporous polymer membranes for Sensor Technology

具有快速检测CO2浓度的膜气体传感器具有从海洋测量到石油和天然气工业的应用范围。气体传感器包括气体可渗透膜，其响应时间固有地受到目标分析物通过膜的渗透性的限制。商品化的PDMS等CO2透过膜的气体透过性和透过性低、选择性差，本课题旨在利用高CO2透过性的本征微孔聚合物（PIM）膜材料设计和制备新型气体透过膜。我们的目标是实现高CO2气体渗透性（超过2000 GPU）和对水的高选择性。我们还将在传感器设备中集成膜，并评估设备中的性能，这将为膜设计的改进和表面改性提供反馈，以提高对生物污染和老化的抵抗力。

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.