(a)
Interpretation:
Identify the repeating unit of the polymer formed and classify as chain-growth or step-growth
Concept introduction:
- Polymers can be classified as chain-growth and step-growth polymers.
- Chain-growth polymers are the one which are formed when monomer is added to the other monomer growing chain one at a time.
- This growing polymer chain usually has only one reactive site. This site is called growth point.
- Step-growth polymers are the one when the monomers react with each other to form oligomers.
- These oligomers are joined together to form polymers. This usually occurs when difunctional monomers are used. This has got two growth points.
To identify: The polymer formed and to determine whether it is step-growth or chain-growth polymer.
(b)
Interpretation:
Identify the repeating unit of the polymer formed and classify as chain-growth or step-growth polymers.
Concept introduction:
- Polymers can be classified as chain-growth and step-growth polymers.
- Chain-growth polymers are the one which are formed when monomer is added to the other monomer growing chain one at a time.
- This growing polymer chain usually has only one reactive site. This site is called growth point.
- Step-growth polymers are the one when the monomers react with each other to form oligomers.
- These oligomers are joined together to form polymers. This usually occurs when difunctional monomers are used. This has got two growth points.
To identify: The polymer formed and to determine whether it is step-growth or chain-growth polymer.
(c)
Interpretation:
Identify the repeating unit of the polymer formed and classify as chain-growth or step-growth polymers.
Concept introduction:
- Polymers can be classified as chain-growth and step-growth polymers.
- Chain-growth polymers are the one which are formed when monomer is added to the other monomer growing chain one at a time.
- This growing polymer chain usually has only one reactive site. This site is called growth point.
- Step-growth polymers are the one when the monomers react with each other to form oligomers.
- These oligomers are joined together to form polymers. This usually occurs when difunctional monomers are used. This has got two growth points.
To identify: The polymer formed and to determine whether it is step-growth or chain-growth polymer.
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