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प्रश्न
Answer the following.
What are synthetic resins? Name some natural and synthetic resins.
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उत्तर
- Synthetic resins:
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.
- Natural resins: Natural rubber, silk, wool, etc.
- Synthetic resins: Nylon, terylene, neoprene, etc.
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संबंधित प्रश्न
How are polymers classified on the basis of polymerisation process?
Draw the flow chart diagram to show the classification of polymers based on the type of polymerization.
Answer the following.
Classify the following polymers as natural and synthetic polymers
- Cellulose
- Polystyrene
- Terylene
- Starch
- Protein
- Silicones
- Orlon (Polyacrylonitrle)
- Phenol-formedehyde resins
Attempt the following:
Classify the following polymer as straight-chain, branched-chain and cross-linked polymers.
\[\begin{array}{cc}
\ce{-(CH2 - CH2 - CH - CH2 - CH2)_\text{n}}\\
|\phantom{..}\\\ce{\phantom{..}CH2}\\
|\phantom{..}\\\ce{\phantom{..}CH2}\end{array}\]
Answer the following.
Explain in detail free radical mechanism involved during preparation of addition polymer.
Semisynthetic polymer among the following is ______________
Addition polymer among the following is ___________
Write the number of carbon atoms present in the monomer used for preparation of nylon 6 polymer.
Functional group present in terylene polymer is ______.
Explain the classification of polymers on the basis of origin.
Define fibres.
Which of the following properties is of the thermosetting polymers?
The total number of electrons around the carbon atom of methyl tree radical are ______.
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Which of the following is a natural polymer?
Cuprammonium rayon and viscose rayon are ____________ polymers.
∈-Caprolactum has ____________ carbon atoms in its ring.
Which among the following polymers belongs to the class elastomers?
Which among the following polymers belongs to class thermoplastic polymers?
Which of the following is a thermosetting polymer?
Which among the following is branched polymer?
Write the structure of isoprene and the polymer obtained from it.
Define the synthetic polymers.
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?
Identify the monomer used to prepare acrylic glass.
