Page 113 - CatalogNEP-PS

LEARNING OUTCOMES:

By the end of this course, students will be able to:
 Compare the structures, properties and uses of various polymers.
 Learn about the kinetic studies of polymers.

THEORY (45 Hours)

UNIT -I: (15 Hours)
Polymers: Introduction and history of polymeric materials:Different schemes of classification of
polymers, Polymer nomenclature, Molecular forces and chemical bonding in polymers, Texture of
Polymers. Functionality and its importance: Criteria for synthetic polymer formation,
classification of polymerization processes, Relationships between functionality, extent of reaction
and degree of polymerization. Bifunctional systems, Poly-functional systems
UNIT -II: (15 Hours)

Kinetics of Polymerization: Mechanism and kinetics of step growth, radical chain growth, ionic
chain (both cationic and anionic) and coordination polymerizations, Mechanism and kinetics of
copolymerization, polymerization techniques.
Crystallization and crystallinity: Determination of crystalline melting point and degree of
crystallinity, Morphology of crystalline polymers, Factors affecting crystalline melting point.
Nature and structure of polymers-Structure Property relationships.
UNIT -III: (14 Hours)

Properties of Polymers (Physical, thermal, Flow & Mechanical Properties).
Brief introduction to preparation, structure, properties and application of the following polymers:
polyolefins, polystyrene and styrene copolymers, poly(vinyl chloride) and related polymers,
poly(vinyl acetate) and related polymers, acrylic polymers, fluoro polymers, polyamides and
related polymers. Phenol formaldehyde resins (Bakelite, Novalac), polyurethanes, silicone
polymers, polydienes, Polycarbonates, Conducting Polymers, [polyacetylene, polyaniline, poly(p-
phenylene sulphide polypyrrole, polythiophene).

PRACTICAL (30 Hours)

Polymer synthesis
1. Free radical solution polymerization of styrene (St) / Methyl Methacrylate (MMA) /
Methyl Acrylate (MA) / Acrylic acid (AA).
2. Preparation of nylon 66
3. Redox polymerization of acrylamide
4. Precipitation polymerization of acrylonitrile
5. Preparation of urea-formaldehyde resin
6. Preparations of novalac resin/resold resin.
7. Microscale Emulsion Polymerization of Poly(methylacrylate).
Polymer characterization
1. Determination of molecular weight by viscometry:
i. Polyacrylamide-aq.NaNO 2 solution
ii. Poly vinyl proplylidine (PVP) in water
2. Determination of the viscosity-average molecular weight of poly (vinyl alcohol) (PVOH)
and the fraction of ―head-to-head‖ monomer linkages in the polymer.
3. Determination of molecular weight by end group analysis: Polyethylene glycol (PEG) (OH
group).
4. Testing of mechanical properties of polymers.
5. Determination of hydroxyl number of a polymer using colorimetric method.

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