Q.1
14 Marks(a)
Define:
i)Monomer
ii)Polymer
iii)Kinetic chain length of polymer
(b)
State examples and explain applications of polymers in chemical industries
(c)
Compare step growth and chain growth polymerization reactions.
Gujarat Technological UniversitySummer 2025 examination
GTU 3160511 Polymer Science and Technology Summer 2025 Question Paper & PDF
B.E. · Chemical Engineering · Semester 6 · Subject code 3160511
- Total
- 70 marks
- To pass
- 23 marks (33%)
- Duration
- 2.5 Hours 10:30 AM – 1:00 PM
- Questions
- 5 with internal choice
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Q.2
14 Marks(a)
Enlist important steps involved in blow molding
(b)
Differentiate amorphous and crystalline polymers
(c)
Construct a neat labelled diagram and explain working of injection molding machine.
OR
(c)
Justify why compounding and additives are used in polymer processing?
Q.3
14 Marks(a)
What are different mechanisms of addition polymerization ?
(b)
Classify polymers based on source and their end use applications.
(c)
Derive equation for rate of polymerization of free radical polymerization.
OR
(a)
What are the block and graft co-polymers?
(b)
Outline advantages and disadvantages of emulsion polymerization.
(c)
Illustrate solution polymerization in detail.
Q.4
14 Marks(a)
List unit operations involved in polymer industries.
(b)
Summarize different types of polymers based on their thermal behavior.
(c)
Describe steps involved in polymer synthesis via condensation polymerization reaction.
OR
(a)
What is degree of polymerization and functionality?
(b)
What is the chemical formula of following polymers?
i)Nylon 6,6
ii)Polystyrene
iii)Polyvinyl chloride
iv)Polyethylene
(c)
Describe steps involved in polymer synthesis via anionic polymerization reaction.
Q.5
14 Marks(a)
Identify important features of suspension polymerization.
(b)
Explain number average and weight average molecular weight of polymers.
(c)
Appraise viscometery method to determine average molecular weight of polymers.
OR
(a)
Outline applications of polymer processing method 'calendaring'.
(b)
Classify polymer degradation methods.
(c)
Illustrate the environmental impact of polymer degradation.
More Polymer Science and Technology papers
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Other Semester 6 subjects
BE Chemical
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About this paper
Official Gujarat Technological University (GTU) examination paper for Polymer Science and Technology (Summer 2025, B.E. · Chemical Engineering, Sem 6). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.