Advertisements
Advertisements
Questions
Write chemical reaction for preparation of the following.
Neoprene
Write equations used for the synthesis of Neoprene.
How is neoprene synthesised?
Advertisements
Solution
In the presence of a peroxide, free radical addition polymerization of chloroprene (2-chlorobuta-1,3-diene) produces neoprene.

APPEARS IN
RELATED QUESTIONS
Write the reactions involved in the preparation of PVC
Write the formulae of the raw materials used for preparation of Dextran.
The Zieglar-Natta catalyst is used in the preparation of _______.
(A) LDPE
(B) PHBV
(C) PAN
(D) HDPE
Answer the following in one sentence.
Identify 'A' in the following reaction:

Answer the following in one sentence.
Identify 'B' in the following reaction:
\[\ce{H2N -(CH2)6 - NH2 + HOOC - (CH2)4 - COOH ->[N2][533 K]}\]'B'
Answer the following in one sentence.
Identify thermoplastic and thermosetting plastic from the following:
- PET
- Urea formaldehyde resin
- Polythene
- Phenol formaldehyde resin
Draw the structures of polymers formed from the following monomers
\[\ce{n HOOC–R–COOH + n HO–R'–OH}\]
Identify condensation polymers and addition polymers from the following.
-(CH2 - CH = CH - CH2 -)n
Identify condensation polymers and addition polymers from the following.

Attempt the following:
Write the chemical reactions involved in the manufacture of Nylon 6,6.
Monomer used for preparation of polyacrylonitrile is _____________
Monomer of natural rubber is __________
Write preparation of low density polythene.
The following structure represents the polymer:
\[\begin{array}{cc}
\ce{[-C-CH2-NH-C-(-CH2)5 NH -]_{{n}}}\\
\phantom{}||\phantom{.............}||\phantom{................}\\
\phantom{}\ce{O}\phantom{.............}\ce{O}\phantom{................}
\end{array}\]
Identify additional polymers from the following.
I. \[\begin{array}{cc}
\ce{-(CH2 - CH -)_{{n}}}\\
\phantom{....}|\\
\phantom{.......}\ce{C6H5}
\end{array}\]
II. \[\ce{-(CH2 - CH = CH - CH2 -)_{{n}}}\]
III. \[\ce{-(CO(CH2)4 - CONH(CH2)6NH -)_{{n}}}\]
IV.
![]()
Identify the INCORRECT match.
Which of the following is the monomer of neoprene?
Which of the following polymers is obtained from chloroprene?
Which among the following catalysts is used in the preparation of dacron?
Identify the monomers used in the preparation of Novolac.
Identify the catalyst used in the manufacture of high density polythene.
Which of the following monomers is used in the manufacture of Neoprene rubber?
Which among the following polymers is an example of addition polymer?
Which among the following is an example of addition polymer?
The commercial name of polyacrylonitrile is ______.
Name the polymers used in laminated sheets and give the name of monomeric units involved in its formation.
Phenol and formaldehyde undergo condensation to give a polymar (A) which on heating with formaldehyde gives a thermosetting polymer (B). Name the polymers. Write the reactions involved in the formation of (A). What is the structural difference between two polymers?
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 -
Trans - form of poly isoprene is:-
Which of the following is an example of polyester?
Nylon threads are made of ______.
Polymer used in bullet proof glass is ______.
Which of the following polymers do not involve cross linkages?
Identify the monomer used to prepare neoprene.
Answer the following.
Name and draw structure of the repeating unit in natural rubber.
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.
Another name of terylene is ______.
Name and draw structure of the repeating unit in natural rubber.
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.
Write the structure of isoprene and the polymer obtained from it.
Name and draw the structure of the repeating unit in natural rubber.
Identify polyamide polymer from following.
