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प्रश्न
Explain the term copolymers with examples.
What are copolymers?
What are copolymers? Give appropriate example.
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उत्तर १
- The polymers which have two or more types of repeating units are called copolymers.
- They are formed by the polymerisation of two or more different types of monomers in the presence of each other.
- The different monomer units are randomly sequenced in the copolymer.
Example: Buna-S, Buna-N
उत्तर २
- When two or more different types of monomers undergo polymerisation, the process is called copolymerisation, and the polymer thus formed is called a copolymer.
- Each monomer used in the same chain is present in many units that make up the copolymer.
- Its composition is determined by the reactivity of the monomers as well as their proportion.
- Compared to homopolymers made from each of the combining monomers, copolymers have very distinct properties. These polymers include styrene-butadiene rubber, styrene methylmethacrylate, and others.
संबंधित प्रश्न
Answer the following in one sentence.
Name some chain-growth polymers.
Answer the following.
Classify the following polymers as natural and synthetic polymers
- Cellulose
- Polystyrene
- Terylene
- Starch
- Protein
- Silicones
- Orlon (Polyacrylonitrle)
- Phenol-formedehyde resins
Answer the following.
What are synthetic resins? Name some natural and synthetic resins.
Answer the following.
Distinguish between thermosetting and thermoplastic resins. Write example of both the classes.
Answer the following
How is polythene manufactured? Give their properties and uses.
Semisynthetic polymer among the following is ______________
Homopolymer among the following is ______.
Define elastomer.
Explain thermoplastic and thermosetting polymers.
Explain homopolymers with examples.
Explain the classification of polymers on the basis of structures.
Write the preparation of nylon 6, 6.
Explain the classification of polymers on the basis of origin.
Which polymer from following is used as synthetic leather?
What type of inter molecular force is present between magnesium chloride and water?
Which of the following statement is INCORRECT?
Which of the following is a natural polymer?
The monomers used in the preparation of dextron are ______.
Which of the following pair represents natural polymers?
Which of the following compounds contain -CO-NH- linkage?
The polymer used in making handles of cookers and frying pans is ______.
The polymer used in making synthetic hair wigs is made up of ______.
Lactic acid and glycollic acid are the monomers used for the preparation of the polymer.
Which among the following is branched polymer?
Define the semisynthetic polymers.
Define homopolymer.
