Download SGBAU B-Tech 7th Sem Poly Plast Polymer Reaction Engineering Question Paper

Download SGBAU (Sant Gadge Baba Amravati university) B-Tech/BE (Bachelor of Technology) 7th Sem Poly Plast Polymer Reaction Engineering Previous Question Paper

P. Pages : 2
B.Tech. Seventh Semester (Polymer (Plastic) Technology) (CGS)
11135 : Polymer Reaction Engineering : 7 PP 02
AW - 3384
Time : Three Hours WNW! LI Max. Marks : 80
9'
Notes :
b)
a)
b)
a)
b)
AW - 3384 1 - P.T.O
Answer three question from Section A and three question ?om Section B.
Due credit will be given to neatness and adequate dimensions.
Assume suitable data wherever necessary.
Diagrams and chemical equations should be given wherever necessary.
Illustrate your answer necessary with the help of neat sketches.
Discuss the reaction. mechanism wherever necessary. .
Cell phones are not permitted.
Use of pen Blue/Black ink/re?ll only for vnit'mg the answer book.
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SECTION - A
Derive the performance equation of adiabatic batch reactor.
Discuss the classi?cation of chemical reaction on the basis of various parameters.
OR
Compare steady state ?ow type tubular reactor with mixed ?ow reactor (CFSTR) in terms
of ?ow pattern, conversion, concentration, rate and molecular weight distribution of
product formed.
Why plus ?ow reactor [P.F.R.] is more ef?cient than [C.F.S.T.R.] constant ?ow stir tank
reactor?
Discuss solution polymerisation technique compare it with bulk polymerisation.
What do you mean by CMC'.? Explain in detail the role and mechanism of emulsi?er in
? emulsion polymerisation technique.
OR
Discuss emulsion polymerisation technique in detail. State the merits and demerits of
emulsion polymerisation technique.
Discuss smith and Ewart theory for kinetics of emulsion polymerisation with assumption
Derive basic equation of this theory. Apply case in which the number of free radicals per
polymer particle are less than one. consider the case of high diffusion rate.
OR
What are the various stages of an ideal emulsion polymerisation technique? Discuss in brief
with the help of neat schematic diagrams.
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7 .a)
b)
8 a)
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9.
10. a)
b)
11.
12. a)
b)
AW ? 3384
SECTION ? B
Name the functional groups present in case of polyester preparation using condensation
polymerisation process.
How choice of reactor effect on average molecular weight and molecular weight distribution
ofpolymcr formed in case ofcondensation polymerisation?
0R
How would you control average molecular weight and molecular weight distribution of
polymer formed in condensation polymerisation?
Compare condensation polymerisation vmh radical polymerisation.
How will you determine rate 01? polymerisation and rate constant by using dilatometer?
Describe it?s working principle with the loci p of schematic diagram.
0R
How choice ofreactor effect on average molecular weight and molecular weight distribution
of polymer formed in casc m?mdical polymerisation?
How would you control average molecular weight of polymer fomled using increase in
temperature method in case of free radical polymerisation?
Discuss in brief the following clcamng methods used in large polymcnsalion reactors.
i) Manual Cleaning
ii) Mechanical cleaning
iii) Chemical Cleaning
0R
Discuss agitation used in large polymerisation reactor.
How would you prepare polystyrene using commercial (German Tower) process?
Discuss with the help of neat sketch.
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