Polymer Science & Engineering exam (WPE 101/WPE 141) from BUTEX affiliated colleges' 2020 Level-1 Term-I finals. Includes thermoplastic behaviour, DSC and DTA analysis, molecular weight control in condensation, free radical vinyl polymerization, and Tg-Tm relations.
Level-1 Term-I, Final Exám-2020
Subject: Polymer Science & Engineering (Code: WPE 101/WPE 141)
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) Write the importances of Polymers in Textile Field.
(b) Discuss about Thermoplastic and Thermosetting polymer with examples.
(c) Mention the D.P of following fibres-Viscose, Polyester, Nylon-6.6.
[4+4+4=12]
2. (a) What are DSC, DTA, TA analysis.
(b) Make a relation between molecular weight and DP.
(c) How molecular weight (Mw) can be controlled in step condensation polymerization.