What type of polymer can be considered novolac? Select the proper choice from the given choices.(A) Linear (B) Branched (C) Cross linked (D) (A) and (B)
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Answer:
(C) cross linked
Explanation:
As per the question,
As we know that Novolac is light weighted molecular polymers which are obtained from phenol and formaldehyde. Like bakelite its structure is also highly cross-linked .O-Hydroxybenzyl is a monomer unit of Novolac. Novolac is considered as amorphous not crystalline. It is easily converted in methylene and dimethylene amino cross-linked structure above 90°C temperature. It is widely used as adhesives and also used in manufacturing of billiard balls.
Hence ,the correct option is (C).
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