Polyaniline Nanofibers: Facile Synthesis and Applications as Chemical Sensors

Issue
 Date
Publication Date
Patent No.
7,144,949
Category
Method or Process

Polymer nanofibers, such as polyaniline nanofibers, with uniform diameters less than 500 nm can be made in bulk quantities through a facile aqueous and organic interfacial polymerization method at ambient conditions. The nanofibers have lengths varying from 500 nm to 10 .mu.m and form interconnected networks in a thin film. Thin film nanofiber sensors can be made of the polyaniline nanofibers having superior performance in both sensitivity and time response to a variety of gas vapors including, acids, bases, redox active vapors, alcohols and volatile organic chemicals.

Keywords: sensor, polymer, nanofiber
International Class: C08K3/00, D01F6/76