ChE 415(A) POLYMER TECHNOLOGY
| Lectures: 4 periods/week |
Sessional Marks: 30 |
| University Exam: 3 Hours |
University Examination Marks: 70 |
UNIT-I
Definitions - Monomer, polymer, functionality, homo and copolymers, heterochain and homochain polymers, polymer blends.
Classification of Polymers: Based on origin, applications, thermal behavior and polymerization.
Structural formulae of some common polymers. Average molecular weights and their distribution of polymers.
Measurement of Molecular Weights: By end group analysis, colligative properties, intrinsic viscosity, Gel permeation chromatography and light scattering methods.
Chemical structure and physical states of polymers: Configuration & conformations, crystalline and amorphous states.
General properties of polymers: Mechanical, chemical, thermal, electrical and optical properties.
UNIT-II
Mechanism and kinetics of:
(I) step growth or condensation polymerization,
(II) addition or chain growth
- free radical
- anionic
- cationic
- coordination polymerizations
Copolymerization of binary monomer system: Kinetics and relation of copolymer composition to monomer ratio.
Role of: Initiator, catalyst, solvents, inhibitors, chain transfer agents in polymerization.
Methods of polymerization: Bulk or mass, solution, suspension and emulsion polymerization techniques.
Polymer chemical reactions: Degradation, curing or cross linking and vulcanization
UNIT-III
Compounding of polymers: Role of various additives such as fillers, reinforcing agents, stabilizers, antioxidants, lubricants, fire retardants, coupling agents.
Brief description of processing methods:- Extrusion
- moulding
- injection moulding
- calendaring
- fibre spinning
Brief description of manufacture, properties and applications of addition polymers:
- polyethylene
- polypropylene
- polyvinyl chloride
- polystyrene
- polymethyl methacrylate
- polytetra fluoroethylene and
- natural rubber
UNIT-IV
Brief description of preparation, properties and application of condensation polymers:
- phenolic resins,
- polyesters
- unsaturated and saturated: PET & polycarbonate
- Polyamides (nylon 6 & nylon 6,6)
- polyurethanes
- epoxy resins
- silicone resins
- cellulose and its derivatives
Brief description of FRP composites.
Structural formulae and applications of engineering and specialty polymers.
Brief description of analysis and testing of polymers: Identification, chemical analysis, spectroscopic and x-ray methods, DSC, TGA.
Text Books
- Polymer science, Gowarikar R.A., New Age publishers.
Reference Books
- Polymer science and technology, Joel R. Fried, PHI publishers.
- Polymer science and technology of plastics and rubbers, Premamoy Ghosh, Tata McGraw Hills, New Delhi
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Text Book of polymer science, Fred Billmayer.Jr., John Wiley & Sons