Crystallography:- Unit cell, Bravais lattices, Cubic crystals - CN, APF, radius ratio. Three laws of crystallography, Weiss indices and Miller indices with numericals, X-ray diffraction – Bragg’s Law and numericals. Crystal defects (point and line defects) and their effects on properties of crystals.Zinc sulphide – structure and applications as luminescent.Molecular
electronics:-Basic concepts. Study of following molecules for their structures and properties on the basis of orbitals, chemical bonding, band theory, electrical conductivity, applications in electronics such as in diodes, transistors, ICs, photovoltaic devices, sensors etc.
1.Conductive polymers-polypyrrole, polythiophene
2.Pure carbon compounds- graphite, single wall and chiral carbon nano-tubes, fullerenes
3. Liquid crystals
4.Charge transfer compounds-tetrathiofulvalene.
Unit 2 : Volumetric analysis Standard solutions and their preparations, various ways of expressing concentrations of solutions,equivalent weights in different types of reactions. Volumetric analysis – acid-base, complexometric,oxidation-reduction, precipitation – with specific examples, theories of indicators used in above titrations, titration curve (acid-base only) numericals on all above.
Unit 3 : Polymers
Definition and important terms: Monomer, Polymer, Polymerization, Degree of polymerization (Dp),Glass transition temperature (Tg), Molecular weight, Polymer dissolution.Classification on the basis of - a) Polymerization mechanism – (step and chain polymers , brief mechanism should be explained), b) Polymerization reactions – (addition and condensation), c)Thermal behaviour–(thermoplastics and thermosetting), d)Types of monomers– (homopolymer and copolymer).Commercial Polymers–Synthesis, properties and applications- Polyethylene (PE), Polypropylene (PP),Polyvinyl chloride (PVC), Polystyrene (PS), Phenol formaldehyde (PF), Acrylonitrile butadiene styrene (ABS), Epoxy resin .Compounding of Plastics.Rubbers-Synthesis, structure, properties and applications of a) Natural rubber–isolation,Polyisoprene. b) Vulcanized rubber-Valcanisation of rubber by sulfur and sulfur related compounds (S,S2Cl2, hioacids), Zinc oxide, Benzoyl peroxide. c) Synthetic rubber-Styrene–Butadiene rubber, Silicon rubber and Neoprene rubber.Speciality polymers –Basic concepts and applications of conductive, liquid crystalline, thermally stable and biodegradable polymers. Polymer composites, Recycling of polymers.
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