Multiple Choice QuestionsFormation of terylene is an example of:
condensation polymerisation
addition polymerisation
esterification
saponification
Which of the following is a condensation polymer?
[-NH-CO(CH2)5-]n
Rubber
Polyvinyl chloride
Polyethylene
A.
[-NH-CO(CH2)5-]n
Condensation polymer are those in which monomer unit condense to form large units along with loss of small molecules like H2O, NH3.
[-HN-CO-(CH2)5] is amide linkage, formed by condensation of -COOH group with -NH2 group. It is accompained by loss of water. So, it is condensation polymer.
The monomer used in novolac, a polymer used in paints
melamine and formaldehyde
phenol and formaldehyde
butadiene and acrylo nitrile
butadiene and styrene
Bakelite is obtained from phenol by reacting with:
acetaldehyde
acetal
formaldehyde
chlorobenzene
Nylon threads are made of
polyvinyl polymer
polyester polymer
polyamide polymer
polyethylene polymer
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