학술논문
Development of new polyurethanimide tailored copolymers for SO2 SAW gas microsensors
Document Type
Conference
Source
2010 IEEE International Ultrasonics Symposium Ultrasonics Symposium (IUS), 2010 IEEE. :748-751 Oct, 2010
Subject
Language
ISSN
1051-0117
1948-5727
1948-5719
1948-5727
1948-5719
Abstract
In this paper we present new polyurethaneimide (PUI) copolymers SO 2 as sensitive layers for a gas sensor based on a ZnO/Quartz ST-90 SAW transducer. These copolymers, which contain tertiary amine groups acting as Lewis bases, were characterized by Brillouin spectroscopy in order to determine the optimal sensor parameters. Gas sensors consisting of trilayer structures PUI/ZnO/Quartz were then developed successfully and tested under SO 2 with the different PUI copolymers. The observed sensor responses are discussed in terms of structure-properties relationships.