Polymer Science & Engineering question paper (WPE 101) from BUTEX affiliated colleges' 2019 Level-1 Term-I finals. Covers conformation versus configuration, infrared spectroscopy principles, end-to-end distance derivation, LDPE-HDPE comparison, and GPC techniques.
Level-1 Term-I, Final Exám-2019
Subject: Polymer Science & Engineering (Code: WPE 101)
Time: 3.0 Hrs. Full Marks: 72
(Use separate answer script for Part: A and Part: B)
(All parts of a question must be answered consecutively)
Part: A
(Answer any three questions)
1. (a) Define terms of (i) Monomer (ii) Polymerization (iii) Repeating unit and (iv) End group.
(b) Classification of polymer on the basis of behavior towards heat.
(c) State the importance of polymer science in textile field.
(d) Distinguish between homopolymer and co-polymer.
[4+2+2+4=12]
2. (a) Compare between chain conformation & configuration of polymer.
(b) Briefly explain the principle of infrared spectroscopy.
(c) Derive the equations: Chain end-to-end distance . Where, R = end-to-end distance, I = unit bond length, n = number of bonds, θ = bond angle.
(d) Compare between LDPE and HDPE.
[3+3+3+3=12]