WorksheetsSTEP POLYMERIZATION
Total questions: 10
Worksheet time: 5mins
Which is statement relates to step growth polymerization?
Condensation polymerization
Addition polymerization
Coordination polymerization
High exothermic reaction
Which of the byproduct molecule is released in the formation of polyurea?
NH3
H2O
HCl
no elimination
Which of the following byproduct is released when an ester reacts with alcohol?
alcohol
water
ether
no elimination
Consider the following statements for condensation polymerization. Which following are true?
Bifunctional or polyfunctional monomers
Loss of each kind of functional group in each step for
Always accompanied by the release of a byproduct molecule
Monofunctional or polyfunctional monomers
What is the order of a self-catalyzed polyesterification reaction?
2
3
1
4
Which order kinetics does a strong acid catalyzed polyesterification reaction follow?
1
3
2
4
What does the ratio of number to weight average degree of polymerization for a bifunctional system represent?
degree of polymerization
breadth of molecular size
extent of reaction
How does the weight distribution vary with increasing conversion and constant trifunctionality?
gets broader
gets narrower
remains constant
How does the viscosity vary with the onset of gelation of reaction mixture?
increases
decreases
remains constant
none of the mentioned
The cross linking established by linking the branched units leads to three dimensional structure which gives rise to the phenomenon of gelation of reaction mixture. State true or false.
True
False
