Tuning the spectral, thermal and morphological properties of Poly(o-phenylenediamine-co-vaniline)

ABSTRACT

A recent advancement is seen in the field of functionalised conjugated polymers due to its futuristic applications, which can be diversified in optoelectronics and biomedical fields. To investigate the functionalization and its effect, o-phenylenediamine (OPD) is functionalised with 4-Hydroxy-3-methoxy benzaldehyde, commonly known as vanillin, resulting in Schiff’s base, further polymerised to obtain alternating copolymer. The FT-IR, UV-Visible, fluorescence, X-ray diffraction studies were performed to investigate the properties revealed the variation in optoelectronic properties for POPD, Schiff’s base and Poly(oPD-co-Van). Thermogravimetric analysis revealed the higher thermal stability of Poly(oPD-co-Van). Enhanced properties were seen for copolymer suitable for optoelectronics. Antioxidant properties were also investigated and revealed that tailored copolymer exhibited significant antioxidant activity against DPPH free radical and hydrogen peroxide.

KEYWORDS:

• Copolymer
• o-phenylenediamine (OPD)
• polymerisation
• Schiff’s base
• vaniline

Acknowledgments

The authors are thankful to the Lingaya’s Vidyapeeth for help during lab work.

Disclosure statement

There is no conflict of interest.

Additional information

Notes on contributors

Deepali Khokhar

Ms. Deepali Khokhar, currently a research scholar in the Department of Chemistry, Lingaya's Vidyapeeth, Faridabad, Haryana India. She did her master's in organic chemistry from Deenbandhu Chhotu Ram University of Science and Technology, Murthal, Sonipat, Haryana in 2017 and did her bachelor's in B.Sc(Hons) Chemistry in 2015 from University of Delhi, New Delhi.

Sapana Jadoun

Dr. Sapana Jadoun did her masters in Organic Chemistry from the University of Rajasthan in 2011. She has completed her Ph.D. in amine-based conducting polymer from the Department of Chemistry, Jamia Millia Islamia, New Delhi, India under the supervision of Dr. Ufana Riaz. She has also worked as JRF and SRF in DST-SERB sponsored project. Currently, she is working as Assistant Professor at the School of Basic & Applied Sciences in Lingaya’s Vidyapeeth, Faridabad, India. She has a good publication record in scientific journals of the high impact factor. Her area of expertise includes functionalized conducting polymers and their application in organic electronics and bioimaging.

Rizwan Arif

Dr. Rizwan Arif has completed his master's degree in Inorganic Chemistry from the Department of Chemistry, Jamia Millia Islamia in 2012. In December 2012, He has joined as Junior Research Fellow in UGC sponsored a project and worked as SRF on the same project. He was awarded his Ph.D. in March 2019 thesis entitled “Synthesis, Characterization and Biological evaluation of Some Heterocyclic Derivatives” under the supervision of Dr. Rahisuddin from the Department of Chemistry, Jamia Millia Islamia, New Delhi. He has published a good number of research articles in peer-reviewed journals. Currently, He is working as Assistant Professor in the Department of Chemistry, School of Basic and Applied Sciences, Lingaya’s Vidyapeeth, Faridabad.

Shagufta Jabin

Dr. Shagufta Jabin is currently working as Associate Professor in the Department of Chemistry, Faculty of Engineering, Manav Rachna International Institute of Research and Studies, Faridabad. She obtained her Ph.D. degree from the National Institute of Technology, Kurukshetra. She had done M.Sc. and M. Phil from Aligarh Muslim University, Aligarh with first division. She has teaching and research experience of more than 15 years. She has published more than 35 research papers in national and international journals and conference proceedings. She is guiding two Ph.D. scholars. She has already guided 08 Post Graduate dissertations. Her current research interests include Environmental Chemistry, Polymer Chemistry, and Soil Chemistry