Exam Details
| Subject | stereoregular polymers and modern polymerisation methods | |
| Paper | ||
| Exam / Course | m.sc. polymer chemistry | |
| Department | ||
| Organization | solapur university | |
| Position | ||
| Exam Date | December, 2018 | |
| City, State | maharashtra, solapur |
Question Paper
M.Sc. (Semester IV) (CBCS) Examination Nov/Dec-2018
Polymer Chemistry
STEREOREGULAR POLYMERS AND MODERN POLYMERISATION METHODS
Time: 2½ Hours
Max. Marks: 70
Instructions: Attempt in all five questions. Section I is compulsory Attempt any two questions from section II and any two from Section III. Answer to all question (Section II and III) should be written in the one answer book. All questions carry equal mark. Figures to right indicate full marks. Use of log table non programmable calculator is allowed.
Section I
Q.1
Answer the following:
14
Draw the saw horse projection for ethylene chloride.
Why Z-N initiators are practically important.
List out the factors on which coordination ability of a monomer depends.
Draw schematically Multiblock copolymers.
How cellulose and amylase are different in terms of stereochemistry?
Cycloheptene and higher Cycloalkene undergo only ROP why?
Which type of monomers undergoes ATRP reactions?
Section II
Q.2
Discuss the different types of copolymers with suitable example and explain any two important properties with respective blends.
07
Discuss the stereoisomerism in polymerization of polyacrylamide in brief.
07
Q.3
Discuss the component of Z-N catalyst and explain the bimetallic mechanism to get stereoregular polymers.
07
Give an account on the mechanism of coordination polymerization with suitable example.
07
Q.4
Discuss the synthesis and properties of block copolymers from styrene and diene monomers.
07
Describe the different stereoisomer's obtained form 2 disubstitued ethylene.
07
Section III
Q.5
Describe the monometallic mechanism for AlEt3-TiCl3 system.
05
List out the various method for living radical polymerization and mention the advantages and off ATRP over free radical polymerization.
05
Discuss the synthetic method used for thermoplastic elastomers.
04
Q.6
1,3-butadiene monomers on polymerization produces different types of stereoisomer's explain in brief.
05
Explain the bimetallic mechanism in non polar vinyl monomer in detail.
05
Discuss the various factors responsible for stereoregular polymers.
04
Q.7
Write a note on any Three of the following.
14
ABA triblock synthesis and applications
Stereoisomer of cyclopentene
Metathesis polymerization
RAFT polymerization
Stereospecific Polymerization of MMA
Polymer Chemistry
STEREOREGULAR POLYMERS AND MODERN POLYMERISATION METHODS
Time: 2½ Hours
Max. Marks: 70
Instructions: Attempt in all five questions. Section I is compulsory Attempt any two questions from section II and any two from Section III. Answer to all question (Section II and III) should be written in the one answer book. All questions carry equal mark. Figures to right indicate full marks. Use of log table non programmable calculator is allowed.
Section I
Q.1
Answer the following:
14
Draw the saw horse projection for ethylene chloride.
Why Z-N initiators are practically important.
List out the factors on which coordination ability of a monomer depends.
Draw schematically Multiblock copolymers.
How cellulose and amylase are different in terms of stereochemistry?
Cycloheptene and higher Cycloalkene undergo only ROP why?
Which type of monomers undergoes ATRP reactions?
Section II
Q.2
Discuss the different types of copolymers with suitable example and explain any two important properties with respective blends.
07
Discuss the stereoisomerism in polymerization of polyacrylamide in brief.
07
Q.3
Discuss the component of Z-N catalyst and explain the bimetallic mechanism to get stereoregular polymers.
07
Give an account on the mechanism of coordination polymerization with suitable example.
07
Q.4
Discuss the synthesis and properties of block copolymers from styrene and diene monomers.
07
Describe the different stereoisomer's obtained form 2 disubstitued ethylene.
07
Section III
Q.5
Describe the monometallic mechanism for AlEt3-TiCl3 system.
05
List out the various method for living radical polymerization and mention the advantages and off ATRP over free radical polymerization.
05
Discuss the synthetic method used for thermoplastic elastomers.
04
Q.6
1,3-butadiene monomers on polymerization produces different types of stereoisomer's explain in brief.
05
Explain the bimetallic mechanism in non polar vinyl monomer in detail.
05
Discuss the various factors responsible for stereoregular polymers.
04
Q.7
Write a note on any Three of the following.
14
ABA triblock synthesis and applications
Stereoisomer of cyclopentene
Metathesis polymerization
RAFT polymerization
Stereospecific Polymerization of MMA
Other Question Papers
Subjects
- basic concepts of polymerization
- fundamentals of feedstocks and polymers
- morphology and physical chemistry of polymers
- processing technology and polymer properties
- selected topics in polymers
- step-growth of polymers
- stereoregular polymers and modern polymerisation methods