English

Write chemical reaction for preparation of the following. Neoprene

Advertisements
Advertisements

Questions

Write chemical reaction for preparation of the following.

Neoprene

Write equations used for the synthesis of Neoprene.

How is neoprene synthesised?

Chemical Equations/Structures
Very Short Answer
Advertisements

Solution

In the presence of a peroxide, free radical addition polymerization of chloroprene (2-chlorobuta-1,3-diene) produces neoprene.

shaalaa.com
  Is there an error in this question or solution?
Chapter 15: Introduction to Polymer Chemistry - Short Answer Questions (Type-I)

APPEARS IN

SCERT Maharashtra Chemistry [English] Standard 12 Maharashtra State Board
Chapter 15 Introduction to Polymer Chemistry
Short Answer Questions (Type-I) | Q 6.2

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

Write the reactions involved in the preparation of  PVC


Write the chemical reaction to prepare novolac polymer.


Bakelite is the polymer of:

(a) Benzaldchyde and phenol

(b) Acetaldehyde and phenol

(c) Formaldehyde and phenol

(d) Formaldehyde and benzyl alcohol

 


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 in one sentence.

Identify 'A' in the following reaction:


Answer the following in one sentence.

Define the term: Vulcanization


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

Draw the structures of polymers formed from the following monomers

\[\ce{n HOOC–R–COOH + n HO–R'–OH}\]


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


Answer the following.

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


Identify condensation polymers and addition polymers from the following.

-(CO(CH2)4 - CONH(CH2)6NH-)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 preparation, properties, and uses of Teflon.


Nylon 6, 6 is a condensation polymer of hexamethylenediamine and _____________


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


Write preparation of low density polythene.


Mention two uses of LDP.


Write the name and formulae of the monomers used for the preparation of dacron.


Define rubber.


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


Which among the following polymers is obtained from styrene and 1-3-butadiene?


Which among the following polymers is used for making handles of cooker?


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.


\[\ce{{n} CH2 = CH2 ->[333 K - 343 K][6 - 7 atm, catalyst] X}\]

Which of the following is CORRECT about polymer 'X'?


Which among the following polymers is obtained from CH2 = CH – CN by polymerisation?


Which of the following polymer is used to make blankets?


Which among the following polymers is used to manufacture chemical containers?


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

(i) Dacron

(ii) Buna-S

(iii) Neoprene

(iv) Novolac


Which of the following is not a copolymer?


Which of the following polymer has ester linkage?


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


Nylon threads are made of ______.


The catalyst used for the polymerisation of olefins is ______.


Which among the following polymers has high tensile strength and is used to obtain tyre cords?


Answer the following.

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


Name and draw the 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.


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

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


Name and draw the 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.


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.


Which from following statements is NOT true regarding neoprene?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×