Synthesis and characterization of polythiophenes derivatives for sensor applications

• Grant number: 05/03137-0
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: April 01, 2006
• End date: March 31, 2010
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: Debora Terezia Balogh
• Grantee: Vanessa Cristina Gonçalves
• Host Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil

Abstract

In the last decades, the general concerns about the increasing of toxic gases emission levels induced a growing number of researches in new materials, devices and technologies to produce sensors to control the emissions. Besides this application sensors development to detect pleasant odors in food and cosmetic area is also of great interest. Conductive polymer sensors have shown promising results in these applications, which will make possible construction of portable and more efficient detection systems. In this context, we propose the synthesis of polythiophenes derivatives, such as 3-azosubstituted polythiophenes and poly(3-alkoxythiophene)s, aiming to produce new materials with different chemical affinities. Chemical-structural characterization of the synthesized polymers will be performed by spectroscopic and thermal techniques. Optical and electrical characteristics of polymeric thin films will be study in the presence of different gases. (AU)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

GONÇALVES, Vanessa Cristina. Synthesis and characterization of polythiophene derivatives and their use in VOCs sensor applications. 2010. Doctoral Thesis - Universidade de São Paulo (USP). Instituto de Física de São Carlos (IFSC/BT) São Carlos.