Table of Contents
International Scholarly Research Notices
Volume 2014, Article ID 987236, 8 pages
Research Article

Benzoyl Peroxide Oxidation Route to the Synthesis of Solvent Soluble Polycarbazole

1Polymers & Functional Materials Division, Indian Institute of Chemical Technology, Hyderabad, Telangana 500007, India
2CSIR, Network Institutes for Solar Energy (NISE), India

Received 11 June 2014; Accepted 31 July 2014; Published 29 October 2014

Academic Editor: Miguel A. Esteso

Copyright © 2014 Rajender Boddula and Palaniappan Srinivasan. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Carbazole was oxidized by benzoyl peroxide in presence of p-toluenesulfonic acid to polycarbazole salt at room temperature for the first time. Polycarbazole salts were synthesized via solution and emulsion polymerization pathways. Polycarbazole bases were prepared by dedoping from polycarbazole salts. Formation of polycarbazoles was confirmed from infrared, electronic absorption and EDAX spectra. Polycarbazole salt was obtained in amorphous nature in semiconductor range (10−5 S/cm), which was found to be soluble in less and high polar solvents. Polycarbazole salt prepared by emulsion polymerization pathway showed mixture of shapes with microrod, sphere, and pores, whereas its corresponding base showed only micropores structure. On the other hand, polycarbazole salt and its corresponding base prepared by solution polymerization pathway showed flake-like morphology. Higher thermal stability was obtained for polycarbazole salt prepared by emulsion polymerization pathway than that of the salt prepared by solution polymerization pathway.