Question

Which type of plastics cannot be remoulded once set? How do you think the monomer are arranged in such plastics?​

Answer 1

Explanation:

Thermosetting plastics are the one which can be molded once but cannot be remoulded on heating.

Answer 2

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1) Which type of plastics cannot be remoulded once set?

2) How do you think the monomer are arranged in such plastics?

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1) Thermosetting plastics are rigid and heavily cross-linked polymers. They cannot be remoulded once they set.

2) The monomers in a polymer may be arranged in a variety of ways. For example, the monomers may have a linear arrangement like a long chain of paper clips, although the tetrahedral carbon bonds actually give the chain a zigzag configuration. Polyethylene is the simplest example of a linear polymer.

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