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प्रश्न
Write chemical reaction for preparation of the following.
Neoprene
Write equations used for the synthesis of Neoprene.
How is neoprene synthesised?
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उत्तर
In the presence of a peroxide, free radical addition polymerization of chloroprene (2-chlorobuta-1,3-diene) produces neoprene.
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संबंधित प्रश्न
Write any ‘two’ uses of terylene.
Explain the following term: Homopolymers
Based on molecular forces, what type of polymer is neoprene?
The Zieglar-Natta catalyst is used in the preparation of _______.
(A) LDPE
(B) PHBV
(C) PAN
(D) HDPE
Answer the following.
Write structure of natural rubber and neoprene rubber along with the name and structure of their monomers.
Answer the following.
Match the following pairs:
| Name of polymer | Monomer |
| 1. Teflon | a. CH2 = CH2 |
| 2. PVC | b. CF2 = CF2 |
| 3. Polyester | c. CH2 = CHCl |
| 4. Polythene | d. C6H5OH and HCHO |
| 5. Bakelite | e. Dicarboxylic acid and polyhydoxyglycol |
Name and draw structure of the repeating unit in natural rubber.
Identify condensation polymers and addition polymers from the following.
-(CO(CH2)4 - CONH(CH2)6NH-)n
Attempt the following:
Write the chemical reactions involved in the manufacture of Nylon 6,6.
Attempt the following:
Explain the vulcanisation of rubber. Which vulcanizing agents are used for the following synthetic rubber?
a. Neoprene
b. Buna-N
Attempt the following:
What is meant by LDP and HDP? Mention the basic difference between the same with suitable examples.
Monomers ethylene glycol and terephthalic acid undergo condensation polymerization to give polymer called ___________
write the structure of the monomer used in natural rubber.
Write preparation of low density polythene.
Write the name and formulae of the monomers used for the preparation of dacron.
Write chemical reactions for the preparation of high-density polythene.
Define rubber.
Which of the following polymer is used in paints?
Which of the following is the monomer of neoprene?
Novolac is obtained from ____________.
Which of the following catalysts is used in preparation of terylene?
Identify the monomers used in the preparation of Novolac.
Which of the following pair of compounds is used as monomers for bakelite?
Which among the following polymers is used to manufacture chemical containers?
Identify addition polymer from the following.
Which of the following products is formed when benzaldehyde is treated with CH3MgBr and the addition product so obtained is subjected to acid hydrolysis?
The monomer of Teflon is ______.
F2C = CF2 is monomer of the polymer -
Which of the following polymer has ester linkage?
Which of the following is an example of polyester?
Which of the following polymers is synthesized using a free radical polymerisation technique?
Nylon threads are made of ______.
Polymer used in bullet proof glass is ______.
Which among the following polymers has high tensile strength and is used to obtain tyre cords?
Answer the following.
Write the structure of isoprene and the polymer obtained from it.
Answer the following.
Write the structure of isoprene and the polymer obtained from it.
Name and draw the structure of the repeating unit in natural rubber.
Write the structure of isoprene and the polymer obtained from it.
Write the name of the monomer of natural rubber.
Name and draw structure of the repeating unit in natural rubber.
The monomer used in preparation of teflon is ______.
Write the structure of isoprene and the polymer obtained from it.
Name and draw structure of the repeating unit in natural rubber.
Name and draw structure of the repeating unit in natural rubber.
Write the structure of isoprene and the polymer obtained from it.
Write the structure of isoprene and the polymer obtained from it.
Write the structure of isoprene and the polymer obtained from it.
Write the structure of isoprene and the polymer obtained from it.
Name and draw structure of the repeating unit in natural rubber.
Write the structure of isoprene and the polymer obtained from it.
