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Download GTU BE/B.Tech 2017 Winter 3rd Sem Old 132301 Introduction To Plastic Material Science Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2017 Winter 3rd Sem Old 132301 Introduction To Plastic Material Science Previous Question Paper

This post was last modified on 20 February 2020

This download link is referred from the post: GTU BE/B.Tech 2017 Winter Question Papers || Gujarat Technological University


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Subject Code: 132301

GUJARAT TECHNOLOGICAL UNIVERSITY

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BE - SEMESTER-III (OLD) EXAMINATION - WINTER 2017

Subject Name: Introduction to Plastic Material Science

Time: 10:30 AM to 01:00 PM

Instructions:

  1. Attempt all questions.
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  3. Make suitable assumptions wherever necessary.
  4. Figures to the right indicate full marks.

Q.1

(a) Discuss How polymers and low molecular weight compounds are differing from each other? [07]

(b) List various steps of free radical polymerisation and explain each with suitable example. [07]

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Q.2

(a) Define polymers. Give detail classification of polymers with suitable examples. [07]

(b) What are chain and step polymerization? Give difference between them. [07]

OR

(b) Give difference between thermoplastic and thermosetting plastics. [07]

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Q.3

(a) Explain Polydispersity & Molecular weight distribution in polymers. [07]

(b) What is Glass transition temperature? Discuss various factors affecting Tg. [07]

OR

Q.3

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(a) Explain number average and weight average molecular weight in polymers. [07]

(b) Explain bulk polymerization technique along with advantages, disadvantages and applications. [07]

Q.4

(a) Explain optical isomerism by suitable examples. [07]

(b) Discuss various factors affecting crystallisability. [07]

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OR

Q.4

(a) What do you mean by Polydispersity? Explain Polydispersity & Molecular weight distribution in polymers. [07]

(b) Answer the following: [07]

  1. Write a note on Tacticity
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  3. Calculate the contour length and the extended chain length of PE. Mol. Given: - n =6000 , Bond angle-109°28' ,Segment length -1.54 A.

Q.5

(a) Explain Emulsion polymerization in detail. [07]

(b) Define: Co-polymer, Initiator, Cross-linked polymer, Graft copolymer, Degree of polymerisation, Inhibitor, Block copolymer [07]

OR

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Q.5

(a) Explain solution polymerization technique. [07]

(b) Give difference between suspension and emulsion polymerization. [07]

Date: 17/11/2017

Total Marks: 70

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This download link is referred from the post: GTU BE/B.Tech 2017 Winter Question Papers || Gujarat Technological University

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