Preparation and characterization of SU8-carbon nanotube composites

• Presented at: 23rd Winterschool on Electronic Properties of Novel Materials, Kirchberg, GERMANY, Mar 14, 2009
• Published in: Physica Status Solidi B-Basic Solid State Physics, vol. 246, p. 2461-2464
• Publication date: 2009

SU8-carbon nanotube composites have been produced to enhance the mechanical, electrical, and thermal properties of SU8 photoresists. Homogeneous composites materials have been obtained when multiwalled carbon nanotubes (MWCNTs) functionalized with COOH groups were used. Indeed, COOH groups can react with the epoxy ring of the SU8 molecule yielding an improved interaction between carbon nanotubes (CNTs) and the polymer matrix. Impedance spectroscopy was used to study the conducting percolation path in the composites, that is the quality of the nanotube dispersion in the epoxy matrix. It turns out that propylene glycol methyl ether acetate (PGMEA) as well as gamma-butyrolacton (GBL) are very suitable solvent to prepare SU8-MWCNTs composites of good homogeneity. (C) 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords: Multiwalled Carbon Nanotubes ; Catalyst Support ; Su8 Photoresist ; Nanocomposite ; Microfabrication

Reference

• EPFL-CONF-159085
• doi:10.1002/pssb.200982274
• View record in Web of Science

Record created on 2010-11-30, modified on 2017-05-12