Question

Write short note on Bakelite.​

Answer 1

Answer:

Bakelite is a polymer made up of the monomers phenol and formaldehyde. This phenol-formaldehyde resin is a thermosetting polymer. ... Bakelite is the commercial name for the polymer obtained by the polymerization of phenol and formaldehyde. These are one of the oldest polymers that were synthesized by man.

Explanation:

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Answer 2

Answer:

Bakelite is also known as a 'material of a thousand uses'. It is a  called polyoxybenzyl methylene glycol anhydride.

• Bakelite is a condensation polymer. Bakelite is a thermosetting phenol-formaldehyde resin which is formed by the condensation reaction of formaldehyde with  phenol.

Structure of Bakelite:-

• Bakelite is composed of two monomers, phenol and formaldehyde. We are surrounded by materials, which have a Polymer associated with them.
• Bakelite is a Polymer made from phenol and formaldehyde Polymerization.
• The condensation reaction of  phenol and formaldehyde in a controlled acidic medium causes the formation of ortho and para hydroxymethyl phenols.

Characteristics and uses:-

1. Bakelite is a cross linked thermosetting polymer.
2. Bakelite has low degree of polymerization is known as 'soft' Bakelite. It is used to make soft wooden planks and varnishes and lacquers.
3. The Bakelite with high degree of polymerization is hard which is used for making electrical goods, photograph records, fountain pen barrels, combs etc.
4. Bakelite moldings are heat-resistant and scratch-resistant, used for making the handles of a variety of utensils.

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