MSc (Colour Chemistry and Technology) Syllabus
TECT801 COLOUR CHEMISTRY IHistorical development of colour chemistry since Perkin’s synthesis of mauveine. Classification of dyes according to chemical constitution and application. Aromatic substitution reactions and their application in the synthesis of dyestuff intermediates. Sulphonation, nitration, halogenation, Friedel-Craft reaction. Hydroxylation, animation etc. Colour and chemical constitution; early theories of colour – molecular spectra and electronic transitions, quasi classical theory, valence bond, resonance theory, application of molecular orbital theory, Huckel molecular orbital (HMO) method, perturbation molecular orbital (PMO) method, Free electron molecular orbital (FEMO) method.
TECT802 PHYSICAL CHEMISTRY OF DYE ADSORPTIONThe forces responsible for substrate/dye adsorption, the electrical properties of surfaces, adsorption isotherms.Application of classical thermodynamics to dye absorption phenomena, e.g. ion exchange systems, the kinetics of absorption processes, dyeing systems, covalent bonding between dyes and substrates.
TECT803 COLORATION TECHNOLOGYClassification of colorants according to methods of application.Fundamental of coloration behavior in relation to practical coloration methods, cellulosic dyes, nylon – acid dyes, acrylic fibres – basic dyes, energy requirements in coloration processes, printing and leather coloration.
PAINTS: - The functions of painted surfaces, paint formulations (solvent and water-base) and stabilization of additives, recent developments in paint technology (e.g. uv curing).
INKS: - The more important printing processes, development in technological aspects and also in ink formulations. Ink vehicles, the importance of the nature of the substrate in any printing operation, industrial significance of printing and printed materials (e.g. packaging, newsprint etc.)
COLOUR AND COSMETICS: - Coloring matters and coloration processes of importance for cosmetic application, skin coloration, nail, lacquers and varnishes and hair coloration, health factors of each area of colour application.
FOOD COLOURS: - Natural and synthetic colorants, the colour needs of the food industry. Certified colour additives, current regulation of the F.D.A. regarding colours used in food processing.
TECT804 CHEMISTRY AND APPLICATION OF PIGMENTSThe history of pigments; natural pigments, dyeing and pigmentation, the importance of media, black and white organic pigments, the chemistry of organic pigments, nucleation and the growth of particulate in solution, the physics of pigments, methods of measuring particle size distribution, testing of optical properties.
TECT805 POLYMER CHEMISTRYSynthesis of Polymers: Addition polymerization reactions (ionic and free radical), techniques and kinetics of these reactions, condensation polymerization reactions, techniques and kinetics of these reactions. Thermodynamics of polymerization, copolymerization, alternating, random, graft and block copolymers.
Characterization of Polymers: Molecular weights of polymers, number average, weight average and viscosity, average molecular weights, physical and chemical analysis of polymers, physical testing of polymers, structure of polymers, interactive forces in polymers, phase transition temperatures of polymers, polymer solutions, ageing and stabilization of polymers, chemical and biochemical degradation of polymers, physico-mechanical properties of polymers. Surface coatings, adhesion, detergency, surfactants, interfaces, Gibbs absorption isotherm and chemisorption.
TECT807 ADVANCED TEXTILE ORGANIC CHEMISTRYMechanisms – nucleophilic substitution reactions, electrophilic substitution reactions, addition reactions, elimination reactions. Linear free energy relationships, Hammett equation, Taft equation, Swain-Scott equation and Hine equation. General acid-base catalysis. Principle of least nuclear motion and its use in organic reactions mechanism. Role of mode studies in understanding of the mechanistic aspects of enzymatic reactions, mechanism of intramolecular reactions, concept of effective molarity. Mechanistic details of few well studied organic reactions – hydrolysis and aminolysis of anilides, amides and esters, nitrences, glides and heterocyclic chemistry.
TECT809 QUALITY CONTROLImportance of quality control, control in physical and wet processing. The role of standards in quality audit, frame work, types of control, statistical method for solving control problems, quality control charts. Text methods in the assessment and quality control in paints industry, quality control of the chemically processed textile materials. Assessment of the colourfastness. Health regulations in food and drugs colorants.
TECT811 PROCESS TECHNOLOGYFundamental of dimensional analysis, material and energy balances in process calculations, stoichiometry in material and energy balance, elements of fluid mechanics, laminar, turbulent flows, dimensionless numbers and their relevance, equations of fluids, statics, dynamics of compressible and incompressible fluids, concepts of heat transfer by conduction, convection and radiation.Heat exchanger designs, pumps and compressors.Elements of unit operations, etc.
TECT813 FINISHING TECHNOLOGYRecent advances in the technology of finishing, principles of modern finishes, processing and machinery. Finishing of natural and synthetic. Wash-n-wear, water proof, flame retardant. Fluorescent brightening agents, surface-active agents. Important commercial process for obtaining high strength durable press cotton. Water in textile processing. Washing off rate (after treatment)
TECT814 FINANCIAL MANAGEMENTFinancial planning and control (balance sheet, profit and loss account, ratio analysis, profit planning, financial forecasting, (budgeting), management of working capital (working capital, sources and forms of short-term financing), capital structure (sources and forms of long-term financing, financial structure and leverage, investment decision (the interest factor, cost of capital, capital budgeting decision).
TECT816 COLOUR CHEMISTRY IIThe chemistry and technology of azo dyes. The synthesis and use of important groups of dyes such as di and triphenylmethane dyes, carbonyl dyes; anthraquinonoid and indigoid dyes, cyanine dyes, the purporines phthalocyanine etc.