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2 C 20566
Section B (Paragraph)

Answer at least five questions.

Each question carries 5 marks.

All questions can be attended.
Overall Ceiling 25.

Explain classification of polymers based on intermolecular forces
Write a short note on LDPE and HDPE.
Write a short note on conducting polymers.
Explain number average and weight average molecular weights.
Explain briefly thermal degradation process.
Give the preparation and uses of any two synthetic rubbers.
Explain briefly Zeigler- Natta polymerization.
(5 x 5 = 25 marks)
Section C (Essay)

Answer any one question.
The question carries 11 marks.

Explain briefly : (i) Bulk polymerization ; (ii) Solution polymerization ; (iii) Suspension
polymerization ; and (iv) Emulsion polymerization

Explain cationic and anionic polymerizations with mechanisms.

(1 x 11 = 11 marks)

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