Author(s): Juhaina Alghdir, Ahmad Falah, Sameh Hamo

Email(s): juhaina.alghdir@yahoo.com

DOI: 10.52711/0974-360X.2021.00713   

Address: Juhaina Alghdir1, Ahmad Falah2, Sameh Hamo2
1Student, Department of Chemistry, Faculty of Science, Damascus-University, Syria.
2Superviser, Department of Chemistry, Faculty of Science, Damascus-University, Syria.
*Corresponding Author

Published In:   Volume - 14,      Issue - 8,     Year - 2021


ABSTRACT:
This study includes the preparation of the polyaniline at the laboratory temperature in an acidic medium. The Scanning Electron Microscopy (SEM) analysis of Polyaniline shows smooth surface and uniform nanoparticles formation with diameters of 56.4 to 90 nm. The polymerization of polyaniline kinetics was studied with two methods: UV-Vis, HPLC. Then the polymerization of polyaniline reaction order was determined and it was the zero-order reaction (n=0) in both of the previous two methods. The study of thermal dissociation indicates the temporal stability of chemicals, and study the decomposition kinetics to determine the thermodynamic functions of material disintegration. There are many methods use mathematical equations applied to TGA to study this phenomenon. The thermodynamic functions of the prepared polymers such as (?G*, ?S*, ?H*) were determined based on Coats-Redfern equation from TGA curves of the compounds at each step of the disintegration.


Cite this article:
Juhaina Alghdir, Ahmad Falah, Sameh Hamo. Study the Polymerization Kinetics of Polyaniline by UV-Vis and HPLC and Determination of the Thermodynamic Functions using Coats-Redfern Equation from TGA Curves. Research Journal of Pharmacy and Technology. 2021; 14(8):4117-1. doi: 10.52711/0974-360X.2021.00713

Cite(Electronic):
Juhaina Alghdir, Ahmad Falah, Sameh Hamo. Study the Polymerization Kinetics of Polyaniline by UV-Vis and HPLC and Determination of the Thermodynamic Functions using Coats-Redfern Equation from TGA Curves. Research Journal of Pharmacy and Technology. 2021; 14(8):4117-1. doi: 10.52711/0974-360X.2021.00713   Available on: https://rjptonline.org/AbstractView.aspx?PID=2021-14-8-19


REFERENCES:
1.    Sariciftci N S, Kuzmany H, Neugebauer H, Neckel A. Structural and electronic transitions in polyaniline: A Fourier transform infrared spectroscopic study. J. Chem. Phys.1990; 92 (7): 4530-4539.
2.    Salaneck S W, Huang W S, Macdiarmid A G. Optical Properties of Polyaniline. synth. Met. 1992; 34 (9) 1833-1845.
3.    Saikia P J, Sarmah P C. Investigation of Polyaniline Thin Film and Schottky Junction with Aluminium for Electrical and Optical Characterization. Materials Sciences and Application. 2011; 5 (2): 1022-1026.
4.    Zhang J, Shan D, Mu S. Electrochemical polymerization of aniline with m-aminophenol and novel electrical properties of the copolymer in the wide pH range. Electrochimica Acta. 2006; 51: 4262–4270.
5.    Ravindrakumar G. Synthesis and Characterization of Thin Films of Conducting Polymers for Gas Sensing Applications: Chapter 3: Synthesis of Polyaniline (PANI). SOPS, NMU, Jalgaon. 2014; (22): 1-2.
6.    Green A G, Woodhead A E. Aniline-black and Allied Compounds. Part I. J. Chem. Soc. 1910; (97): 2388–2403.
7.    Green A G, Woodhead A E. Aniline-black and Allied Compounds Part II. J. Chem. Soc. 1912; (101): 1117–1123.
8.    Ram M K, Yang O, Lahsangarh V, Aldissi M. CO gas sensing from ultrathin nano-composite conducting polymer film. Sensors and Actuators B. 2005; 106: 750-757.
9.    STEJSKAL J. Polyaniline. preparation of a conducting polymer (IUPAC Technical Report). International Union of Pure and Applied Chemistry. 2002; 74 (5): 857-867.
10.    Singu B S, Srinivasan P, Pabba S. Benzoyl Peroxide Oxidation Route to Nano Form Polyaniline Salt Containing Dual Dopants for Pseudocapacitor. Journal of The Electrochemical Society. 2012; 159 (1): A6-A13.
11.    Braun D, Cherdron H, Ritter H. Polymer Synthesis: Theory and Practice Fundamentals, Methods, Experiments (Third Edition). Springer-Verlag Berlin Heidelberg GmbH. 2001; 73-79.
12.    Stejskal J, Kratochvil P, Radhakrishnan N. Polyaniline Dispersions: UV-Vis Absorption Spectra, Synthetic Metals. 1993; 61: 225-231.
13.    Patel M, Vasaya M, Asker D, Parsons R P. HPLC–UV method for measuring nicotinamide N-methyltransferase activity in biological samples: evidence for substrate inhibition kinetics. J. Chromatogr. B. 2013; 921 (922): 87–95.
14.    Bui L C, Tabouy L, Busi F, Dupret M, Janel N, Planque C, Delabar J,Rodrigues-Lima F, Dairou J. A high-performance liquid chromatography assay for Dyrk1a, a Down syndrome-associated kinase. Anal. Biochem. 2014; 449: 172–178.
15.    Coats A W; Redfern J P, Nature. 1964; 201(4914):68.
16.    Johnson D W, Gallagher P K. Journal of Physical Chemistry. 1974; 76(10).
17.    Glasstone S. Textbook of Physical Chemistry, Macmillan, Bombay, India, 2ndedition, 1974.
18.    S. Glasstone. Textbook of Physical Chemistry, Macmillan, Bombay, India, 2ndedition, 1974.
19.    Abdalsalam T, Alghdir J, Falah A, Gutuq A. Preparation of Poly (N-1- Naphthal Maleimide) and Comparing the Activation Energy Values Calculated with Coats-Redfern Equation and Flynn-Wall Equation For the Second and Third Disintegration Step. Research Journal of Pharmacy and Technology. 2018; 11(12): 6.

Recomonded Articles:

Research Journal of Pharmacy and Technology (RJPT) is an international, peer-reviewed, multidisciplinary journal.... Read more >>>

RNI: CHHENG00387/33/1/2008-TC                     
DOI: 10.5958/0974-360X 

0.38
2018CiteScore
 
56th percentile
Powered by  Scopus


SCImago Journal & Country Rank


Recent Articles




Tags


Not Available