Question

The essential requirements of fibre formation are
A. molecular orientation
B. linear polymer and strong lateral bonds
C. three dimensional polymers
D. crystalline and amorphous regions Choose the correct answer from the options given below :

• A. A, B, C only
• B. A, C, D only
• C. A, B, D only
• D. B, C, D only

Hint:

Think of a fiber like a rope: you need long, straight strings (Linear polymers) that are tied together tightly (Lateral bonds) and lined up properly (Orientation).

Answer 1

The Correct Option is C

Concept: For a polymer to be suitable for fiber formation, it must possess specific molecular and structural characteristics.

Step 1: Molecular Chain Structure.
Fiber-forming polymers must be B (Linear polymers). This allows the chains to align parallel to each other. They must also have strong lateral bonds (like Hydrogen bonds) to hold the chains together. C (Three dimensional/cross-linked polymers) are unsuitable because they cannot be stretched or aligned into a fiber.

Step 2: Internal Morphology.
A fiber must have a balance of D (Crystalline and amorphous regions). The crystalline parts provide strength, while the amorphous parts provide flexibility and dyeability.

Step 3: Alignment.
Finally, the ability to achieve A (Molecular orientation) along the fiber axis is essential to provide the necessary tensile strength for textile use.