IGNOU MSCCHEM MCH 21 Chemistry of Materials Solved Assignment ENGLISH
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MCH 21: Chemistry of Materials
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| Title Name | IGNOU MSCCHEM MCH 21 Chemistry of Materials Solved Assignment ENGLISH |
|---|---|
| Type | Soft Copy (E-Assignment) .pdf |
| University | IGNOU |
| Degree | MASTER DEGREE PROGRAMMES |
| Course Code | MSCCHEM |
| Course Name | M.Sc. in Chemistry |
| Subject Code | MCH 21 |
| Subject Name | Chemistry of Materials |
| Year | 2026 2027 |
| Session | - |
| Language | ENGLISH |
| Assignment Code | MCH 21/Assignment-1/2026 2027 |
| Product Description | Assignment of MSCCHEM (M.Sc. in Chemistry) 2026 2027. Latest MCH 021 2026-27 Solved Assignment Solutions |
| Format | Ready-to-Print PDF (.soft copy) |
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MCH 021 (July 2026 - January 2027) - ENGLISH
Tutor Marked Assignment
Chemistry of Polymers and Materials (MCH-021)
Course Code: MCH-021
Assignment Code: MCH-021/TMA/26-27
Maximum Marks: 100
Note: Attempt all questions. The marks for each question are indicated against it.
1. Answer any five of the following in brief. (2x5)
(a) Define the term degree of polymerisation (DM).
(b) Distinguish between graft and block copolymers.
(c) List two factors that affect the Glass Transition Temperature (??).
(d) What is the chemical significance of 'tacticity' in polymers?
(e) Define stimuli responsive polymers with one example.
(f) Explain the term biodegradation in the context of polymers.
(g) What are hydrogels and mention one biomedical application.
2.
(a) Describe the classification of polymers based on their origin and structure (linear,
branched, cross-linked) using specific examples like polyethylene and bakelite.
(5)
(b) Explain the concepts of number average and weight average molecular mass.
Include a directive to calculate the dispersity of a polymer sample.
(5)
3.
(a) Compare the mechanisms of chain-growth and step-growth polymerisation as
defined by Carothers and Flory. (5)
(b) Discuss the kinetics of copolymerisation and describe how random and
alternating copolymers are formed. (5)
4.
(a) Discuss the synthesis and mechanism of conduction in conducting polymers.
(5)
(b) Explain the mechanism of action for pH-responsive and temperature-responsive
polymers. (5)
5.
(a) Describe the importance of functional polymers in the development of artificial
organs. (5)
(b) Explain biomimetics and the properties of 'Shape Memory Polymers'.
MCH 021 (January 2026 - July 2026) - ENGLISH
Tutor Marked Assignment
Chemistry of Polymers and Materials
Course Code: MCH-021
Assignment Code: MCH-021/TMA/2026
Maximum Marks: 100
Note: Attempt all the questions. The marks for each question are indicated against it.
1. (a) What are pendant groups? Give one example.
(b) Illustrate different arrangements of polymers according to their tacticity.
2. (a) Give one example each for an addition and a condensation polymer.
(b) Which type of initiators can be used to initiate anionic polymerisation? Give any two examples.
3. In the kinetics of uncatalysed step growth polymerisation, arrive at the following expression:
4. Discuss the free electron molecular orbital model of conduction in conducting polymers.
5. (a) What features are required in a conducting polymer?
(b) Name any two polycarboxylic acids which can behave as pH-responsive polymers.
6. Discuss how pH-sensitive smart polymers can be used in glucose sensors.
7. Discuss the mechanism of biological degradation of polymers by microorganisms.
8. (a) Give the products formed by aerobic and anaerobic biodegradation of biodegradable polymers.
(b) Name four types of hydrogels based on four their composition.
(c) What is artificial kidney?
9. For cross linking by free radical polymerisation in hydrogels, name any two initiators, a cross linking agent and any two monomers.
10. (a) List any four characteristics of artificial blood.
(b) What is PBT? Give its use.
11. Give the important applications of glass. What are the various oxides which plays an important role in firing of traditional ceramics?
12. Give the classification of composites. Explain any one of the physical methods of preparation of nanomaterials.
13.Explain the magnetic properties of nanomaterials.
14. Explain briefly the common methods for thin film deposition.
15. What is the difference between Langmuir-Schaefer (LS) and Langmuir-Blodgett (LB) films?
16. What are liquid crystals? Give the structural requirements of liquid crystals.
17. (i) Draw comparative amongst of molecules in solids, liquids and liquid crystals.
(ii) What is hydrophobic lipophilic balance? Briefly explain.
18. What are main chain liquid crystal polymers? Explain with the help of suitable examples.
19. (i) Give the applications of LCPs in electronics.
(ii) What are micelles? Briefly explain using a diagram.
20. What is CMC? List the factors affecting it.
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Course: M.Sc. in Chemistry (MSCCHEM)
Subject: MCH 21 - Chemistry of Materials
Session: January 2027 - December 2027
Language: ENGLISH
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Product Information
| Course Name | M.Sc. in Chemistry |
| Course Code | MSCCHEM |
| Subject Code | MCH 21 |
| Subject | Chemistry of Materials |
| Programme | MASTER DEGREE PROGRAMMES Courses |
| Language | ENGLISH |
| Material Type | Solved Assignment – Soft Copy / PDF |
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