BIOMOLECULES AND ENZYMES

BIOLOGY

AMINO ACIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What’s the correct definition of these keywords?polyester
A
A condensation polymer formed from a dicarboxylic acid and an alkene
B
An addition polymer formed from a dicarboxylic acid and a diol
C
A condensation polymer formed from a dicarboxylic acid and a diol
D
None of the above
Explanation: 

Detailed explanation-1: -The dicarboxylic acid ethanedioic acid and the diol ethanediol combine in a condensation polymerisation reaction to produce a polyester.

Detailed explanation-2: -Polyesters are an example of a condensation polymer. A simple polyester can be made from a monomer which has two hydroxyl groups (-OH) and another monomer which has two carboxylic acid groups (-COOH). We can simplify the equation by using symbols to represent the carbon chain in the middle of each of the two monomers.

Detailed explanation-3: -Dicarboxylic acids react with diols to form alternating type of co-polymer. They form polyesters such as glyptal, daozon. They are alternating co-polymer because there is alternative one carboxylic acid and one alcoholic unit.

Detailed explanation-4: -In polymer chemistry, condensation polymers are any kind of polymers whose process of polymerization involves a condensation reaction (i.e. a small molecule, such as water or methanol, is produced as a byproduct).

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