Efficient Synthesis of Nanostructured Poly(aniline-co-m-aminobenzoic acid) Copolymer in Presence of DBSA Surfactant

Pachanoor Subbaian Vijayanand; Arunachalam Mahudeswaran; Janakiraman Vivekanandan; Sangamesh G. Kumbar

doi:10.3139/113.110370

Article

Efficient Synthesis of Nanostructured Poly(aniline-co-m-aminobenzoic acid) Copolymer in Presence of DBSA Surfactant

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Published/Copyright: May 13, 2015

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From the journal Tenside Surfactants Detergents Volume 52 Issue 3

Abstract

A new series of novel nanostructured poly (aniline-co-m-aminobenzoic acid) copolymer has been synthesized by chemical oxidative in-situ polymerization method using dodecylbenzene sulphonic acid (DBSA) as a soft template. The synthesized copolymers were characterized by Fourier Transform Infrared spectroscopy, Ultraviolet visible spectroscopy, X-ray diffraction and scanning electron microscopy. The infrared spectrum shows the characteristic peaks confirming the formation of the copolymer. The ultraviolet visible spectrum shows the π to π∗ transition and n to π∗ transition. X-ray diffraction pattern confirms the amorphous nature of the polymer. Scanning electron microscopic images show the new morphology of spherical granular sponge like structures in the range of 100 to 200 nm. Conducting properties of the copolymers were studied using four probe method. Copolymers doped with DBSA showed an increased conductivity in the order of 10^–4 S/cm. These copolymers are found to be more soluble in polar solvents comparing to polyaniline homopolymer.

Kurzfassung

Eine Reihe neuer nanostrukturierter Copolymere vom Typ Poly(anilin-co-m-aminobenzoesäure) wurde mittels der in-situ Oxidativen Poymerisation unter Einsatz von Dodecylbenzensulfonsäure (DBSA) als Soft-template synthetisiert. Die synthetisierten Copolymere wurden mit Hilfe der Fourier-Transform-Infrarot-Spektroskopie (FT-IT), der sichtbaren Ultraviolett-Spektroskopie (UV-Vis), der Röntgenbeugung und der Rasterelektornenmikroskopie (SEM) charakterisiert. Das Infrarotspektrum zeigt die zur Bestätigung der Copolymerbildung charakteristischen Peaks. Das UV-Vis-Spektrum zeigt die π zu π∗- und die n zu π∗-Übergänge. Das Röntgenbeugungsmuster bestätigt die amorphe Struktur des Polymers. Die SEM-Bilder zeigen die neue Morphologie des sphärischen Granulats mit schwammartiger Struktur im Bereich von 100 to 200 nm. Die leitenden Eigenschaften des Co-Polymers wurden mit Hilfe der 4-Sonden-Methode untersucht. Das mit DBSA dotierte Copolymer besaß eine erhöhte Leitfähigkeit in der Größenordnung von 10^–4 S/cm. Diese Co-Polymere waren in polaren Lösemitteln stärker löslich als das homopolymere Polyanilin.

Key words: Poly (aniline-co-m-aminobenzoic acid); surfactant; micelle; surface morphology; conductivity

Stichwörter: Polyanilin-co-m-aminobenzoesäure; Tenside; Mizelle; Oberflächenmorphologie; Leitfähigkeit

* Correspondence address, Dr. P. S. Vijayanand, Assistant Professor in Chemistry, Department of Physical Sciences, Bannari Amman Institute of Technnology, Sathyamangalam, Erode, Tamil Nadu – 638 401, India, Tel.: +91 99 42 63 75 73 +9 10 42 95 22 63 04, Fax: +9 10 42 95 22 66 66, E-Mail: vijayps6@yahoo.co.in

Dr. P. S. Vijayanand was born on October 1974. He completed his M.Sc., from Bharathiar University, Coimbatore in 1998. He completed his Doctoral degree at Anna University, Chennai in 2003. He was a Post-doctoral researcher at KAIST, South Korea from Aug 2004 to Mar 2005 and visiting researcher to Seikei University from Feb 2006 to May 2007. He has published 25 international peer reviewed journals and he is a peer reviewer in various journals. His research is focused on synthesizing novel nanostructured conducting polymers and their utility in solar cells for green environmental applications. Currently he is working as Assistant Professor in the Department of Physical Sciences at Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu.

A. Mahudeswaran was born on April 1985. He finished his Master degree in Chikkaiah Naicker College, Erode, Tamil Nadu in 2008. Currently he is working as Assistant Professor in the Department of Physical Sciences at Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu.

J. Vivekanandan was born on January 1984. He completed his post-graduation in Sri Ramakrishna Mission Vidyalaya College of Arts and Science, Coimbatore in 2006. Currently he is working as Assistant Professor in the Department of Physical Sciences at Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu.

Dr. S. G. Kumbar received his Ph.D. from the Polymer Research Group, Department of Chemistry, (Center of Excellence in Polymer Science) Karnatak University, Dharwad, Karnataka, India. Soon after his Ph.D. he was selected as a faculty at the National Chemical Laboratory (NCL) in Pune, which is a very prestigious research and development laboratory in India focused on the chemical sciences. Dr. Kumbar is serving as a reviewer for more than 15 journals in the field of biomaterials, drug delivery and tissue engineering. He is also on the Editorial Board of Journal of Biomedical Nanotechnology and Bone and Tissue Regeneration Insights. At present He is working as Assistant Professor in the Department of Orthopaedic Surgery, Institute for Regenerative Engineering

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Received: 2014-07-23

Accepted: 2014-11-03

Published Online: 2015-05-13

Published in Print: 2015-05-15

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https://doi.org/10.3139/113.110370

Keywords for this article

Poly (aniline-co-m-aminobenzoic acid); surfactant; micelle; surface morphology; conductivity