الفهرس 
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Abstract
Thethesisconsists of three main chapters. Chapter I is the introduction, chapter II represents
;heexperimentaltechniques, and chapter III contains the results and their discussion.
ChapterI: In this chapter, an introduction was given which deals with the following fields of
interest: polymerization and classification of polymers, conjugated polymers,
oxidative polymerization, mechanism of electrpolymerization, electrochemical
techniques of electropolymerization, cyclic voltammetry, electrochemical nature of
steel corrosion, forms of corrosion of stainless steel, potential of zero charge,
conductive polymer for corrosion protection, and literature survey on the protective
effect of electropolymerized film on the corrosion of stainless steel. The aim of the
work was also given in this part.
Chapter 11:The main contents of this chapter were the experimental techniques used in the
present investigation, which includes:
Cyclic voltammetry technique is used for preparation of poly o-aminobenzoic acid
electropolymerized film on the surface of stainless steel.
Potentiodynamic polarization for corrosion measurements of uncoated and poly 0-
aminobenzoic acid-coated stainless steel have been investigated. The detailed
description of electrodes, solutions, cell, and experimental procedure were also
given.
Chapter Ill: In this chapter the experimental results were discussed in three parts:
Part I: represents the electropolymerization of o-aminobenzoic acid on SS321 surface using
cyclic voltammetry in 0.1 M H2S04 acid solution and 10% dimethylfonnamide using
different scan rates, cycle number, and concentration of monomer. Effect of
temperature on the polymer formation was also studied. The results showed that:
• As cycles number increased, the height of the oxidation peaks increased regularly,
which implied that the polymer was being well deposited onto the working electrode
and that the thickness gradually increased.
• The suitable scan rate required for electropolymerization process in 0.1 M H2S04
solutioncontaining 10% dimethylformamide is ranged from 1500-1800 mVImin.