A novel method of in situ chemical polymerization of polyaniline for synthesis of electrically conductive cotton fabrics

作者：Patil Amol J^*; Deogaonkar Smita C

来源：Textile Research Journal, 2012, 82(15): 1517-1530.

DOI：10.1177/0040517512452930

• polyaniline
• electrical conductivity
• intrinsically conducting polymers
• cotton

In the present work, a study of two-step in situ chemical polymerization of polyaniline (PANI) on cotton fabric was undertaken by employing the jig-dyeing principle. The important reactant parameters, such as monomer concentration, oxidant/monomer ratio, protonic acid concentration and the duration of polymerization, were studied. The structural and morphological features of the resultant fabric were analyzed by Fourier transform infrared-attenuated total reflectance and scanning electron microscopy studies. The electrical conductivity was expressed as both bulk and surface properties. With the present experimental set up, a minimum electrical surface resistivity of about 103 ohm/square was achieved. The present investigation revealed that key parameters, such as protonic acid concentration, oxidant/monomer ratio and the duration of polymerization, are influential at lower monomer concentrations. Further, the treatment method and fabric construction appear to have a predominant role in the deposition, thereby affecting the resultant conductivity. The PANI-coated cotton fabrics thus produced are suitable in application areas of static protection and sensors for smart textiles. The described method of in situ polymerization has a potential for scaling up for bulk production.

• 出版日期2012-9