Lectures

Introduction to Polymer Physics lecture series (click to view on YouTube)


Lecture 1: Introduction to polymer physics
Basic polymer properties, concepts, and considerations; introduction to polymer chain models.


Lecture 2: Structures and conformations of polymers in solution
Kuhn model, worm-like chain model, and Gaussian chain model; scattering wave vector, form factor, and structure factor.


Lecture 3: Polymer-solvent interactions
Excluded volume interactions/parameter; Flory temperature/parameter; Flory theory of chain swelling; coil-globule transition; rods, coils, and globules.


Lecture 4: Dilute and semi-dilute polymer solutions
Osmotic pressure, virial equation, and Zimm plot at dilute solution conditions; overlap concentration and semi-dilute conditions; screening of intrachain excluded volume interactions; osmotic pressure and virial equation at semi-dilute conditions.


Lecture 5: Thermodynamics of mixed solutions
Monomer correlation length in dilute, semi-dilute, and concentrated solutions; lattice model; free energy of mixing of small molecules (Bragg-Williams theory).


Lecture 6: Flory-Huggins solution theory
Flory-Huggins interaction parameter and (im)miscibility; Flory-Huggins solution theory of polymer blends and polymer solutions; chemical potential, osmotic pressure, and phase diagrams from Flory-Huggins solution theory.


Lecture 7: Phase behavior of dilute polymer solutions
Spinodal and binodal curves; critical values of Flory-Huggins solution theory; Ornstein-Zernike/Landau-Ginzberg theory; concentration fluctuations; upper/lower critical solution temperature; determination of Flory-Huggins interaction parameter.


Lecture 8: Rod-like polymers, block copolymers, and phase separation kinetics
Introduction to rod-like polymers and nematic phase; introduction to block copolymers and morphology; lamellar morphology and the strong and weak segregation limits; phase separation kinetics and spinodal decomposition.


Lecture 9: Nucleation and growth
Spherical droplet formation; free energy and interfacial tensions of droplets; nucleation barrier; nucleation rate.


Lecture 10: Polymer dynamics
Introduction to polymer dynamics; Brownian motion; Newton's equation of motion.


Lecture 11: Langevin equation and diffusion
Langevin equation; characteristic time; mean square displacement; Einstein relation; dynamic light scattering, dynamic structure factor, and determination of diffusion coefficient.


Lecture 12: Dynamics of a Brownian particle
Solving Langevin equation for a Brownian particle; dynamic light scattering of Brownian particle.


Lecture 13: Gaussian chain dynamics and Rouse model
Dynamics of a Gaussian chain; probability of conformation of chain; Rouse model/equation/mode/time; dynamics of a labeled monomer; incoherent dynamic structure factor; comparison of Brownian dynamics of a particle to Rouse model.


Lecture 14: Zimm model and polymer dynamics in semi-dilute solutions
Hydrodynamic interactions/Zimm model; Zimm relaxation time; comparison between Rouse and Zimm models; polymer dynamics in semi-dilute solutions; hydrodynamic screening length; self and mutual diffusion coefficients; generalized Stokes-Einstein law.


Lecture 15: Entanglement dynamics
Polymer melt viscosity; reptation model; disengagement time and diffusion in reptation regime; stress-relaxation function (Doi-Edwards theory); scaling laws in entangled regime.


Lecture 16: Introduction to crystalline polymers
Free energy above, at, and below melting temperature; semi-crystallinity; equilibrium melting temperature; polymer crystallization thermodynamics; crystal growth kinetics and nucleation rate.


Lecture 17: Kinetics of polymer crystallization
Lauritzen-Hoffman theory; crystal growth kinetics at lamellar growth front.