Syllabus
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Course Code: CHEM 401 Course Name: Physical Chemistry Special-III |
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| MODULE NO / UNIT | COURSE SYLLABUS CONTENTS OF MODULE | NOTES |
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| 1 | Polymers Recapitulation and basics of polymers and polymerization. Biodegradable polymers: Types of degradable polymers, Chemical and biodegradation. Applications of biodegradable polymers, Hyperbranched–star polymers, Dendrimers, Plasticizers, Polymer composites. Properties of commercial polymers: Polyethylene, polyvinylchloride, polyamides, polyesters, phenolic resins, epoxy resins and silicon polymers. Glass transition temperature (Tg), factors influencing the glass transition temperature, effect of molecular weight and melting point on glass transition temperature, importance of glass transition temperature. |
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| 2 | Thermodynamics of Polymer Solutions Average end-to-end distance, average radius of gyration of polymer chains, statistical distribution of end-to-end dimensions, freely jointed chain in three dimensions, influence of bond angle restrictions. Entropy of mixing and enthalpy of mixing by lattice model, Flory Huggins lattice theory, limitations of lattice model, entropy of mixing by free volume theory, heat and free energy of mixing, partial molar quantities i.e., chemical potential, heat of dilution and partial molar entropy of mixing, excluded volume, thermodynamic relations for dilute polymer solutions. |
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| 3 | Determination of Molecular Weight of Polymers Molecular weight determination of polymers. Osmotic pressure: Membrane osmometer, high speed osmometer and vapour pressure osmometer. Sedimentation or ultracentrifugation: Sedimentation velocity method, sedimentation equilibrium method. Light scattering: Scattering of light by small molecules and polymer solutions, asymmetric scattering, Debye method, Zimm plot method, comparison of Zimm and Debye methods, Determination of molecular weight by Gel Permeation Chromatography. |
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| 4 | Advanced Statistical Mechanics Real gases, intermolecular potential and virial coefficients. Structure of liquids-definition of distribution and correlation functions, Thermodynamic functions of a fluid and radial distribution function, Spectroscopic techniques for liquid dynamic structure studies. Random walk problem in 1D. Theory of Brownian motion, Langevin theory, Fokker-Planck equation. |
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