Thin Films of Block Copolymer Blends for Enhanced Performance of Acoustic Wave-Based Chemical Sensors

The performance of quartz crystal oscillator-based volatile organic compound (VOC) sensors has been enhanced by using coatings made from poly(styrene-block-ethylene-co-butylene-block-styrene) block copolymers blended with resins and homopolymers. Enhanced performance is characterized by a wider oper...

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Veröffentlicht in:	Analytical chemistry (Washington) 2002-12, Vol.74 (24), p.6383-6391
Hauptverfasser:	Lipert, Robert J, Shinar, Ruth, Vaidya, Bikas, Pris, Andrew D, Porter, Marc D, Liu, Guojun, Grabau, Ted D, Dilger, John P
Format:	Artikel
Sprache:	eng
Schlagworte:	Acids Air Pollutants - analysis Analytical chemistry Biosensors Chemistry Environmental Monitoring - instrumentation Exact sciences and technology General, instrumentation Microscopy, Atomic Force Pharmaceuticals Polyenes - chemistry Polyethylene - chemistry Polymers Polymers - chemistry Polystyrenes - chemistry Quartz Temperature Toluene - analysis Toluene - chemistry
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Beschreibung
Zusammenfassung:	The performance of quartz crystal oscillator-based volatile organic compound (VOC) sensors has been enhanced by using coatings made from poly(styrene-block-ethylene-co-butylene-block-styrene) block copolymers blended with resins and homopolymers. Enhanced performance is characterized by a wider operational temperature range (−10 to +50 °C) over which the sensors displayed, concurrently, an analyte sensitivity of >0.2 Hz/ppm toluene, minimal energy loss (resistance
ISSN:	0003-2700 1520-6882
DOI:	10.1021/ac0260490