Learn · Introduction to Polymer Physics
Lecture 36 of 60Week 8
Brownian motion – I
Prof. Prateek Kumar Jha · IIT Roorkee
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- Introduction to Polymer Physics, IIT Roorkee (at NPTEL)
- Licence
- CC BY-NC-SA, as NPTEL states it. Non-commercial use only.
- Attribution
- NPTEL states: "Distributed under Creative Commons Attribution-ShareAlike / CC BY - NC - SA", beside a BY-NC-SA badge.
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- Tweens profiles and older. How courses are placed
All the lectures
- Introduction to the course, Macromolecules and Life, Molecular flexibility
- Classification of polymers, Types of polymerization, Average molecular weights and polydispersity
- Motivation to study polymer physics
- Random Walk Models of Single Chain I: end-to-end distance of a polymer chain, freely jointed chain, “drunkard walk”
- Random Walk Models of Single Chain II: general random walk on a lattice
- Random Walk Models of Single Chain III: Freely rotating chain, definition of persistence length
- Models of semiflexible chains (Kratky Porod Model): Part I
- Models of semiflexible chains (Kratky Porod Model): Part II
- Probability density of an ideal chain: Part I
- Probability density of an ideal chain: Part II
- Entropic Elasticity, Bead-Spring Model, Simulations of random walk models
- Derivation of Diffusion equation, Einstein notation
- Definition of Radius of gyration
- Radius of gyration for an ideal chain, concept of ideality
- Nonbonded interactions, hydrophobic and hydrophilic behaviour
- Definition of excluded volume; good, bad, and theta solvent
- Virial expansion, Flory theory for good solvent
- Flory theory for bad solvent, self-similarity and fractal nature of polymers
- Derivation of fractal dimension, concentration regimes and overlap concentration
- Size, shape, and structure. Gyration tensor and measures of asphericity.
- Order-disorder transition
- Scattering experiments, Pair correlation function
- Structure of polymer chain, Introduction to Monte Carlo simulations of polymer chains
- Monte Carlo algorithm: Detailed Balance, Metropolis algorithm
- Practical aspects of Monte Carlo simulation
- Molecular Dynamics Simulations, Review of Thermodynamics
- Solution Thermodynamics-I
- Solution Thermodynamics-II
- Solution Thermodynamics-III
- Solution Thermodynamics-IV
- Phase separation regime, Introduction to lattice model of solutions
- Lattice Model of Solutions-I
- Lattice Model of Solutions-II
- Phase behaviour of liquid solutions
- Lattice models of polymeric systems
- Brownian motion – I
- Brownian motion - II
- Brownian motion – III
- Brownian motion – IV
- Brownian motion – V
- Rouse Model- I
- Rouse Model-II
- Rouse Model-III
- Rouse Model: IV
- Problems in Rouse Model, Hydrodynamic Interactions
- Zimm Model-I
- Zimm Model-II
- Continuum Mechanics-I
- Continuum Mechanics-II
- Kuhn’s Theory of Rubber Elasticity
- Elasticity of polymer network
- Microscopic definition of stress tensor-I
- Microscopic definition of stress tensor-II, Dumbbell model, introduction to Rouse model
- Models for entangled polymeric systems-I
- Models for entangled polymeric systems-II
- Rheology of complex fluids
- Rheometers and rheological tests-I
- Rheometers and rheological tests-II
- Maxwell model-I
- Maxwell model-II, Closing notes