Download SGBAU B-Tech 3rd Sem Poly Plast Chemistry Of Technology Of Polymers Question Paper

Download SGBAU (Sant Gadge Baba Amravati university) B-Tech/BE (Bachelor of Technology) 3rd Sem Poly Plast Chemistry Of Technology Of Polymers Previous Question Paper

B.chh. Third Semester (Polymer (Plastic) Tech.) (CGS)
11095 : Chemistry and Technology of Polymers : 3 PP 01
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T ime : Three Hours . o o 7 5 . Max. Marks : 80
Notes : I. All question carry marks as indicated.
2. Answer three question from Section A and three question from Section B.
3. Due credit will be given to neatness and adequate dimensions.
4. Assume suitable data wherever necessary.
5. Diagrams and chemical equations should be given wherever necessary.
6. Illustrate your answer necessary with the help of neat sketches.
7. Discuss the reaction, mechanism wherever necessary.
8. Use of cell phone is not allowed in exam.
9. Use of pen Blue/Black ink/re?ll only for writing the answer book.
SECTION - A
l. a) De?ne polymer. Explain linear, branched and crosslinkcd polymer in detail. 8
b) Give the structural formula and IUPAC names of the following: ? 6
i) Polystyrene.
ii) Polyethylene.
iii) Polyethylene terephthalate.
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2. a) Differentiate between the followings:- 8
i) Thermoplastics and Thermosets.
ii) Block and Graft polymers.
b) Explain the IUPAC nomenclature systems for single strand polymers. 6
3. 3) Explain the manufacturing process for styrene monomer with ?owchart. 7
b) Explain the manufacturing process for butadienc with ?ow chart. 6
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4. a) Explain the m?nufacturing process for methyl methacrylate (MMA) with ?ow chart. 7
b) Discuss the manufacturing process of phenol with flow chart in detail. ? 6
5. a) Explain in detail the application of NMR and IR. I 6
b) Explain in detail X-ray diffraction method for analysis of monomer. 7
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6. Explain the following methods for analysis of monomer of polymer.
i) HPLC
ii) GLC
iii) TLC
SECTION ? B
7. a) Explain in detail the relationship hath ?mclionalily extent of reaction and degree of
polymexization.
b) Derive lhe Carothers equation and its application.
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8. a) What is functionalin concept? Which arc the Functional groups involved in the synthesis
of polyemide??
b) Explain the polyaddition reaction by giving suitable example.
9. Explain the following mclhods for determination ot'molecular weight of polymer:-
i) Osmotic pressure.
ii) Ultra centrifugation.
iii) Viscosity.
OR
10. 3) Explain the number average molecular weight and weight average molecular weight in
detail.
b) Explain the end group analysis method for determination ofmolccular weight of polymer.
11. a) What ate different types of degradation? Discuss the chemical degradation and hydrolysis
mechanism to achieve slabilily.
b) Explain mechanical degradation in short.
OR
12. a) What in thermal degradation of polymer? Explain with reference to depolymerization.
b) Explain the oxidative type of degradation and how it is stabilized.
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