Which of the following polymers does not involve cross-linkages?

Vulcanised rubber

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Bakelite

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Melamine

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Teflon

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Solution

The correct option is D Teflon
Bakelite, melamine( thermosetting) and vulcanised rubber( elastomer) have cross-linkages in the structures whereas Teflon is linear addition or chain growth polymers that have not cross-linkages.
the correct option is [D].

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