BIOLOGY
AMINO ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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functional group of monomers:C=C
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functional group of monomers:COOH, OH
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formed by a reaction in which water is formed
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e.g. Terylene, nylon, Kevlar
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do not biodegrade, making disposal difficult
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Detailed explanation-1: -Kevlar is a nylon polymer and is obtained by condensation polymerization of terephthalic acid with 1, 4-diamino benzene. It is a fibre used for making bullet proof vests.
Detailed explanation-2: -Kevlar is made by a condensation reaction of an amine (1, 4-phenylene-diamine) and and acid chloride (terephthaloyl chloride). The kevlar chains are relatively rigid and tend to form mostly planar sheets, similar to those of silk. This is due to the para-orientation of the benzene rings.
Detailed explanation-3: -Examples-Terylene, Bakelite are condensation polymers.
Detailed explanation-4: -Nylon is a polyamide that can be formed from the condensation polymerization reaction between adipic acid and hexamethylene diamine, as illustrated in the diagram below. The condensation product is water (green box).