Page 109 - CatalogNEP-LS

Mechanism of formation of microemulsion and their stability, Fish cut and triangular Phase maps
(Two component, three component, pseudo-terinary), Applications of colloid and surface science
in petroleum recovery, coating and painting, food, pharmaceutical and cosmetic industry
Introduction

UNIT-III (12 Hours)
Macromolecular concept. Molar mass averages, distribution of molecular mass. Kinetics of
Polymerizaton Kinetics of step growth polymerization, size distribution in linear polymers.
Kinetics of free radical addition polymerization, distribution of molar masses, effect of
temperature. Ionic polymerization, kinetics of cationic and anionic polymerization. Statistics of
Linear Polymer Chains Polymer chain flexibility and internal rotation, random flight analysis of
end-to end distance for freely jointed chain in one dimension and three dimensions. Effect of bond
angle and restricted rotation on chain dimensions. Unperturbed chains. Long-range interactions
and effect of solvent. Distribution of chain segments relative to centre of mass.

UNIT-IV (11 Hours)
Thermodynamics of Macromolecular Solutions Flory-Huggins theory. Flory-Krigbaum theory of
dilute solutions, partial molar quantities. Osmotic pressure. Characterization of Macromolecules
Flow properties, generalized flow equation. Frictional co-efficient and flow properties.
Determination of molecular size and mass from diffusion, sedimentation velocity, sedimentation
equilibrium and viscosity. Light scattering and small angle X-ray scattering.

PRACTICAL (30 Hours)
1. Surface Tension Measurements:
i. Study the variation of surface tension with different concentration of detergent solutions.
Determine CMC.
ii. Study the effect of the addition of solutes on the surface tension of water at room
temperature and explain the observations in terms of molecular interactions:
a. sugar
b. ethanol
c. sodium chloride
iii. Surface tension of pure solvents, analysis of mixtures of two miscible solvents,
verification of Gibb‘s Thomson Rule of surface tension.
2. Partition – Coefficient: Determination of partition – coefficient for I2 and benzoic acid
between two immiscible solvents.
3. Adsorption Measurements: Verification of Freundlich adsorption isotherm for I2, and
acetic acid on charcoal.
4. Colloidal Solution: Preparation of sol solution of arsenic sulphide and estimation of
flocculation value for NaCl, KCl, BaCl 2, AlCl 3.
SUGGUESTED READINGS:

1. Young R.J. and Lovell P.A., Introduction to Polymers, Pubs: Chapman and Hall, London, 2nd
ed., New Delhi (2004).
rd
2. Billmeyer F.W. Jr., Text book of polymers science, Pubs: Wiley-Interscience, 3 edn.,(1984).
3. Myers D., Surfactant Science and Technology, Pubs: VCH Publishers (1988).
4. Flory P.J., Principles of polymer chemistry, Pubs: Cornell Univ. Press, (Indian Print 2006).
5. Tager A, Physical Chemistry of polymer, Pubs: Mir Publishers, Moscow (1971).
6. Hunter 3. R.J., Foundations of Colloid Science, Vols. I & II, Pubs: Oxford Science
Publications (1989).
7. Rosen M.J., Surfactants and Interfacial Phenomena, Pubs: John Wiley & Sons (1989).

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