SELF-ASSEMBLY OF POLYANILINE BY VAPOR DIFFUSION WITH WATER AS POOR SOLVENT

• Main Author: Belva, Jeremiah
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/50009
• Institution: Institut Teknologi Bandung

Polyaniline (PANI) is one the most extensively studied conductive polymers owing to several unique properties that made PANI superior to other conductive polymers, pH sensitive conductivity and color, high environmental stability, ease of preparation into different morphologies, and low cost. Morphology control of PANI has always been a major topic of research due to the promising application potential of several morphologies of PANI with unique properties, such as nanotubes, nanofilm, and hollow microsphere in the field of analytic science, electronics, energy storage and conversion, and medicine. Vapor diffusion is a material self-assembly method introduced by Yamamoto et al. as a method to prepare conductive polymer hollow microspheres for optical resonator application. The vapor diffusion method has the advantage of being simple, low-cost, and low-energy. In this research the vapor diffusion method is used to fabricate PANI particles, with NMP (n-methyl-2-pyrrolidone) as good solvent, and water as poor solvent. Between 1 day to 30 days of fabrication, PANI particles with 3 distinct morphologies has been sucessfully fabricated. PANI submicrosphere with average diameter of 318 nm, PANI ellipsoids with average length of 4 ?m and average diameter of 1 ?m, and needle-like PANI with average length of 46.5 ?m.