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प्रश्न
Explain the classification of polymers on the basis of origin.
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उत्तर
On the basis of the source or origin, polymers are classified into three categories:
- Natural polymers: The polymers obtained from natural source are said to be natural polymers.
e.g. cotton and linen.
Natural polymers are further subdivided into two types: Plant polymer and animal polymers. - Synthetic polymers: These polymers are artificially prepared by polymerization of one monomer or copolymerization of two or more monomers.
e.g. nylon and terylene.
Synthetic polymers are further divided into three subtypes: fibres, synthetic rubbers, and plastics. - Semisynthetic polymers: Polymers which are derived from natural polymers are called semisynthetic polymers. These are also called regenerated fibres.
e.g. cellulose acetate rayon and cellulose nitrate.
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संबंधित प्रश्न
How are polymers classified on the basis of polymerisation process?
Answer the following in one sentence.
Define the term: Synthetic fibres
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.
Distinguish between thermosetting and thermoplastic resins. Write example of both the classes.
Attempt the following:
Classify the following polymer as straight-chain, branched-chain and cross-linked polymers.
Answer the following.
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Write the number of carbon atoms present in the monomer used for preparation of nylon 6 polymer.
Functional group present in terylene polymer is ______.
Define elastomer.
Explain the term copolymers with examples.
Explain thermoplastic and thermosetting polymers.
Explain the classification of polymers on the basis of structures.
Write the preparation of nylon 6, 6.
Mention two properties and two uses of nylon 6, 6 polymers.
The monomers used in the preparation of dextron are ______.
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∈-Caprolactum has ____________ carbon atoms in its ring.
Which of the following is INCORRECT regarding terylene?
Which of the following compounds contain -CO-NH- linkage?
Which among the following polymers belongs to class thermoplastic polymers?
Which of the following properties is of thermoplastic polymer?
Which of the following is a thermosetting polymer?
A synthetic polymer which is an ester is ______.
Write the structure of isoprene and the polymer obtained from it.
Define Polymer.
How are polymers classified into different categories on the basis of intermolecular forces? Give an example of a polymer of each of these categories.
Write names of two natural polymers.
