Template Polymerization of Nano-Scale Poly(1-Naphthylamine): Effect of Oxidant on the Spectral, Thermal and Morphological Characteristics

Abstract

For the first time the template synthesis of nano-scale poly(1-naphthylamine) is reported in CSA micellar medium using benzoyl peroxide, ammonium persulphate and potassium dichromate as oxidants. The nanopolymers were characterized by FT-IR, UV-Vis, DSC, TGA, XRD, DLS, as well as SEM techniques. IR spectral investigations revealed the polymerization of 1-naphthylamine through N–C(5) linkages. The UV studies revealed the differences in the chain conformation of the polymers and their polaronic states. The nanosize of the conducting polymers was analyzed by SEM. DLS analysis showed that the particle size of the polymer prepared using the three oxidants varied between 115 and 117 nm. SEM showed that particle size of the three polymers varied between 100 and 312 nm. XRD, as well as DSC analyses confirmed partial crystallinity of these polymers. Conductivity was found to be in the range of 10^–3 to 10^–2 S/cm, which could be correlated to the conformation of the polymeric chains and delocalization of polarons. The nanopolymers were found to be thermally stable up to 400°C.

Keywords:

• NANOPOLYMER
• POLY(1-NAPHTHYLAMINE)
• OXIDANT
• SEM