Polymer Material, Properties and Structure — Winter 2022

Define: (a) Permeability (b) Chain length (c) Cryoscopy

List out the various polymer molecular weight determination techniques.

Explain any one of them. Write in detail about the glass transition temperature of polymers as well

as its Significance. How it affects the application of polymer products?

Explain glass transition temperature with the help of diagram.

Write in detail about classification of Biopolymers.

Explain in detail the about chemical and physical structure of Polymers.

Write in short about the Chain flexibility of the polymers.

Explain Power law for polymers.

Explain the influence of processing parameters on the structure &

properties of polymers. Describe in detail about spherullite with proper diagram and the structure

of Polymers.

Explain in brief about heat distortion temperature.

Write in detail about configuration and conformation of Polymer

Structures. Explain in detail the process of degradation and also describe the parts due

to which degradation occurs.

What is Shear Test?

Describe the working principle of GPC method used to determine

Molecular Weight of Polymers Write in short about the crystallinity of polymers and the factors

affecting the crystallinity of polymers.

How to test flexibles films?

What do you mean by SEM? Explain in brief about it.

Write in detail about basics of rheology.

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What do you mean by surface energy?

How to identify polymers by using chemical methods?

Explain the thermodynamics of polymer dissolution.

Write in short about microscopy.

Mention the advantages and disadvantages of Sem and TEM.

Write a short note on Florry-Huggins theory.