الفهرس 
Introduction
Aim of the workOnly 14 pages are availabe for public view
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Abstract
The thesis comprises three main chapters: Chapter (I): is concerned with an introduction reviewing concisely the relevant literature related to the subject of the thesis, corrosion definition, types and theories of corrosion. Chapter (II): deals with the experimental part. It includes composition of C-steel used, the preparation of the test specimens for the different techniques of measurements and methods of preparation of materials of various solutions used. Also, the procedures followed for corrosion measurements, using weight loss, galvanostatic polarization, ac impedance, Potentiodynamic techniques are including in this chapter. Chapter (III): deals with the results obtained and their interpretations. This chapter is divided into six separated sections; A, B, C, D, E and F. Section A: studied the effectiveness of the isoindoline compounds as corrosion inhibitors in the presence and absence of 1x10-3M KI for C-steel in acidic medium (2M HCl) by weight loss technique. Also, studied the effect of temperature on the corrosion rates in the presence and absence of the isoindoline compounds in acidic medium. Section B: studied the above items except effect of temperature by Potentiodynamic polarization technique. Section C: studied the effectiveness of isoindoline compounds by using ac impedance technique. Section D: studied the effectiveness of isoindoline compounds by using Pitting technique. Section E: studied the effectiveness of isoindoline compounds by using galvanostatic polarization in the presence of cyclic stress. Section F: studied the use of quantum-chemical calculations for studying the effectiveness of the used corrosion inhibitors. The order of decreasing inhibition efficiency is: compound 1 > compound 2 > compound 3> compound 4 .The adsorption of the isoindoline compounds obeys the Temkin’s adsorption isotherm.