English

Answer the following. Write structure of natural rubber and neoprene rubber along with the name and structure of their monomers.

Advertisements
Advertisements

Question

Answer the following.

Write structure of natural rubber and neoprene rubber along with the name and structure of their monomers.

Answer in Brief
Advertisements

Solution

Natural rubber Neoprene

Monomer: 

\[\begin{array}{cc}
\ce{CH3\phantom{....}}\\
|\phantom{......}\\
\phantom{.}\ce{CH2 = \underset{Isoprene}{C - CH} = CH2}
\end{array}\]

Monomer:

\[\begin{array}{cc}
\ce{Cl\phantom{.......}}\\
|\phantom{........}\\
\ce{CH2 =\underset{Chloroprene}{C - CH} = CH2}
\end{array}\]

Structure of natural rubber:

\[\begin{bmatrix}\begin{array}{cc}
\ce{H\phantom{............}}\ce{H}\\
|\phantom{.............}|\\\ce{- C - C = C - C -}\\
|\phantom{....}|\phantom{....}|\phantom{....}|\\
\phantom{}\ce{H\phantom{..}} \ce{CH3\phantom{..}} \ce{H\phantom{...}} \ce{H}
\end{array}\end{bmatrix}_\text{n}\]

Structure of neoprene:

\[\begin{array}{cc}
\ce{Cl\phantom{.......}}\\
|\phantom{........}\\
\ce{-[CH2 - C = CH - CH2]_{n}}-
\end{array}\]

shaalaa.com
  Is there an error in this question or solution?
Chapter 15: Introduction to Polymer Chemistry - Exercises [Page 338]

APPEARS IN

Balbharati Chemistry [English] Standard 12 Maharashtra State Board
Chapter 15 Introduction to Polymer Chemistry
Exercises | Q 3. iii. | Page 338

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

Write the chemical reaction to prepare novolac polymer.


Write the structures of the monomers used for getting the following polymers

Melamine – formaldehyde polymer


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:

  1. PET
  2. Urea formaldehyde resin
  3. Polythene
  4. Phenol formaldehyde resin

Answer the following.

Write the reaction of the formation of Terylene.


Answer the following.

Name the polymer type in which following linkage is present.

\[\begin{array}{cc}\ce{- C - O -}\\||\phantom{.....}\\
\ce{O\phantom{.....}}\end{array}\]


Draw the structures of polymers formed from the following monomers

\[\ce{n HOOC–R–COOH + n HO–R'–OH}\]


Answer the following.

Write name and formula of raw material from which bakelite is made.


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.


Write the name of the catalyst used for preparation of high density polythene polymer.


Write the name of one example of each polymer in which following repeating units.

\[\begin{array}{cc}
\ce{(-CF2-CF2-), -[NH-(CH2)5-CO] -, -(CH2-CH-), (-CH2-CH2-)}\\
\phantom{............................}|\\
\phantom{..............................}\ce{CN}
\end{array}\]


Write chemical reactions for the preparation of high-density polythene.


Explain vulcanization of rubber.


Explain the reactions involved in the preparation of viscose rayon.


Which of the following is used as a substitute for wool?


Select the CORRECT match for both the polymers.


Which of the following polymers is obtained from chloroprene?


Which of the following polymers is a heteropolymer?


Which among the following polymers can NOT be remoulded?


Which among the following catalysts is used in the preparation of dacron?


Identify the catalyst used in the manufacture of high density polythene.


Which of the following pair of compounds is used as monomers for bakelite?


Which of the following polymer is used to make blankets?


Identify addition polymer from the following.


The commercial name of polyacrylonitrile is ______.


Which of the following polymers, need atleast one diene monomer for their preparation?

(i) Dacron

(ii) Buna-S

(iii) Neoprene

(iv) Novolac


Name the polymers used in laminated sheets and give the name of monomeric units involved in its formation.


Match the polymers given in Column I with the type of linkage present in them given in Column II.

Column I Column II
(i) Terylene (a) Glycosidic linkage
(ii) Nylon (b) Ester linkage
(iii) Cellulose (c) Phosphodiester linkage
(iv) Protein (d) Amide linkage
v) RNA  

Match the polymers given in Column I with their repeating units given in Column II.

Column I Column II
(i) Acrilan

(a) \[\begin{array}{cc}
\ce{-(CH2 - CH)\underset{n}{-}}\\
\phantom{....}|\\
\phantom{.......}\ce{C6H5}
\end{array}\]

(ii) Polystyrene (b) \[\begin{array}{cc}
\ce{Cl}\phantom{.......}\\
|\phantom{........}\\
\phantom{}\ce{-(CH2 - C = CH - CH2)\underset{n}{-}}
\end{array}\]
(iii) Neoprene (c) \[\begin{array}{cc}
\phantom{................................}\ce{CN}\\
\phantom{..............................}|\\
\ce{-(CH2 - CH = CH - CH2 - CH2 - CH)\underset{n}{-}}
\end{array}\]
(iv) Novolac (d) \[\begin{array}{cc}
\ce{-(CH2 - CH)\underset{n}{-}}\\
\phantom{.....}|\\
\phantom{.......}\ce{CN}
\end{array}\]
(v) Buna—N (e) 
  (f)  \[\begin{array}{cc}
\ce{-(CH2 - CH)\underset{n}{-}}\\
\phantom{.....}|\\
\phantom{......}\ce{Cl}
\end{array}\]

Which of the following polymer has ester linkage?


Which one of the following polymers are prepared by addition polymerization?


Which of the following is an example of polyester?


Polymer used in bullet proof glass is ______.


Which of the following polymers do not involve cross linkages?


Which of the following is a polymer of enzyme?


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.


Name the compound which reacts with formaldehyde to produce ethyl alcohol.


Write the preparation of viscose rayon.


Name and draw structure of the repeating unit in natural rubber.


Write the name of the monomer of natural rubber.


Match the following pairs:

Polymer Monomer
(i) Teflon (a) CH2 = CH2
(ii) PVC (b) CF2 = CF2
(iii) Natural rubber (c) Isoprene
(iv) Polythene (d) H2C=CHCl

Write the structure and name of monomer of 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.


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.


Which among the following is a monomer of natural rubber?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×