Media Storage Type : 32 GB USB Stick
NPTEL Subject Matter Expert : Prof. Basavaraj Madivala Gurappa
NPTEL Co-ordinating Institute : IIT Madras
NPTEL Lecture Count : 48
NPTEL Course Size : 9.2 GB
NPTEL PDF Text Transcription : Available and Included
NPTEL Subtitle Transcription : Available and Included (SRT)
Lecture Titles:
Lecture 1 - Introduction and motivation
Lecture 2 - Colloidal dispersions, terminology and classification
Lecture 3 - Stability in colloids
Lecture 4 - Source, synthesis and characterisation of colloids
Lecture 5 - Characterisation of colloidal particles - I
Lecture 6 - Characterisation of colloidal particles - II
Lecture 7 - Introduction to forces acting on an individual colloidal particle
Lecture 8 - Introduction to interaction between colloidal particles
Lecture 9 - Application of Brownian force: Measument of diffusivity and size
Lecture 10 - Radiation used to study colloidal systems
Lecture 11 - Radiation used to study colloidal systems
Lecture 12 - Molecular origin of Van der waals forces
Lecture 13 - Vanderwaal interactions between particles
Lecture 14 - Problem on scaling of Vanderwaal interactions
Lecture 15 - Calculation of Vanderwaal's forces between semi-infinite blocks and Hamaker constant - I
Lecture 16 - Calculation of Vanderwaal's forces between semi-infinite blocks and Hamaker constant - II
Lecture 17 - Theories of Vanderwaal forces based on bulk properties and calculation of Hamaker constant using bulk properties
Lecture 18 - Effect of medium on Vanderwaal's interactions - I
Lecture 19 - Effect of medium on Vanderwaal's interactions - II
Lecture 20 - Colloid Polymer mixtures
Lecture 21 - Colloid polymer mixtures: colloid-solvent interactions and colloid-polymer interactions
Lecture 22 - Colloid polymer mixtures: Depletion flocculation
Lecture 23 - Colloid polymer mixtures: Depletion stabilisation
Lecture 24 - Depletion interactions
Lecture 25 - Steric interactions/osmotic repulsion
Lecture 26 - Tutorial problem on depletion interactions
Lecture 27 - Colloidal Interactions: Introduction to electrostatic interactions/electrical double layer interactions
Lecture 28 - Introduction to models of electrical double layer: Helmholtz model/capacitor model
Lecture 29 - Review and summary of Helmholtz model (or capacitor model) of electrical double layer
Lecture 30 - Models of electrical double layer: Diffuse double layer model/Gouy-Chapman model
Lecture 31 - Potential distribution near planar surfaces: Derivation of the Poisson-Boltzmann equation
Lecture 32 - Potential distribution near planar surfaces: Solution to the linearised Poisson-Boltzmann equation
Lecture 33 - Potential distribution near spherical surfaces: Solution to linearised Poisson-Boltzmann equation
Lecture 34 - Comparison of Capacitor model and Diffuse double layer model
Lecture 35 - Models of electrical double layer: Gouy Chapman Theory - I
Lecture 36 - Models of electrical double layer: Gouy Chapman Theory - II
Lecture 37 - Structure of Electrical double layer
Lecture 38 - Force of Repulsion between interacting surfaces
Lecture 39 - Potential Energy of repulsion between Planar double layers and DLVO Theory
Lecture 40 - Zeta Potential and Electrophoretic mobility of an ion
Lecture 41 - Electrokinetic Phenomena
Lecture 42 - Relation between Electrophoretic mobility and Zeta potential - I
Lecture 43 - Relation between Electrophoretic mobility and Zeta potential - II
Lecture 44 - Colloidal particles at interfaces:Introduction
Lecture 45 - Characterization of Particles at interface
Lecture 46 - Experimental Observations -Concept of Electrostatic interactions and Stability at interfaces
Lecture 47 - Implications from Surface energy balances and Estimation of energy required for detachment
Lecture 48 - Colloidal interactions at interface