Question

Which of the following is not used as a parameter for the classification of polymers?

• A. Source of polymer
• B. Structure of polymer chain
• C. Mode of polymerization
• D. Boiling point of monomer

Hint:

Main bases of polymer classification include:
• Source of polymer
• Structure of polymer chains
• Mode of polymerization
• Molecular forces (thermoplastics, thermosetting polymers, elastomers, fibres) Physical properties such as boiling point or melting point of monomers are not used for classification.

Answer 1

The Correct Option is D

The question asks which of the given options is not used as a parameter for the classification of polymers. Let's evaluate each option:

1. Source of polymer: This parameter classifies polymers based on their origin. Polymers can be natural, synthetic, or semi-synthetic. This is a common classification criterion for polymers.
2. Structure of polymer chain: Polymers can be classified by the arrangement of the monomer units in their chains, such as linear, branched, or cross-linked. This is also a key classification factor for polymers.
3. Mode of polymerization: This parameter involves the process by which monomers form polymers, such as addition polymerization and condensation polymerization. It is a critical aspect of polymer classification.
4. Boiling point of monomer: The boiling point of a monomer is a physical property of the individual monomer, not a criterion used to classify polymers. While the boiling point can be relevant to the processing and application of the monomer, it does not influence how polymers are classified.

After evaluating each option, it is clear that the boiling point of monomer is not used as a parameter for the classification of polymers. Thus, the correct answer is:

Boiling point of monomer

In summary, the classification of polymers typically relies on their source, structure, and polymerization method, but not on the boiling point of the monomer.