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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.
Give one example each of copolymer and homopolymer.
Attempt the following:
Classify the following polymer as straight-chain, branched-chain and cross-linked polymers.
\[\begin{array}{cc}
\ce{-(CH2 - CH2 - CH - CH2 - CH2)_\text{n}}\\
|\phantom{..}\\\ce{\phantom{..}CH2}\\
|\phantom{..}\\\ce{\phantom{..}CH2}\end{array}\]
Homopolymer among the following is ______.
Which of the following is a biodegradable polymer?
Define elastomer.
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 of the following properties is of the thermosetting polymers?
What type of inter molecular force is present between magnesium chloride and water?
Which among the following is not a semi-synthetic polymer?
The monomers used in the preparation of dextron are ______.
Cuprammonium rayon and viscose rayon are ____________ polymers.
Identify semisynthetic polymer.
Which of the following compounds contain -CO-NH- linkage?
Identify the natural polymer from the following.
Which among the following polymers belongs to class thermoplastic polymers?
Identity semisynthetic polymer from following.
Lactic acid and glycollic acid are the monomers used for the preparation of the polymer.
Which among the following is branched polymer?
Write the structure of isoprene and the polymer obtained from it.
Define the synthetic polymers.
Define homopolymer.
How are polymers classified into different categories on the basis of intermolecular forces? Give an example of a polymer of each of these categories.
What are homopolymers?
Write names of two natural polymers.
The monomers of buna-S rubber are ______.
