Download App

Introduction to Polymer Chemistry — Chemistry STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceChemistryIntroduction to Polymer Chemistry3 Marks
Question
Refer to the following table listing for different polymers formed from respective monomers. Identify from the list whether it is copolymer or homopolymer.
MonomerPolymers
EthylenePolyethene
Vinyl chloridePolyvinyl chloride
IsobutylenePolyisobutylene
AcrylonitrilePolyacrylonitrile
CaprolactamNylon 6
Hexamethylene diammonium adipateNylon 6, 6
Butadiene + styreneBuna-S
✓

Answer

In each of first five cases, there is only one monomer which gives corresponding homopolymer. In the sixth case hexamethylene diamine reacts with adipic acid to form the salt hexamethylene diammonium adipate which undergoes condensation to form Nylon 6, 6. Hence nylon 6, 6 is homopolymer. The polymer Buna-S is formed by polymerization of the monomers butadiene and styrene in presence of each other. The repeating units corresponding to the monomers butadiene and styrene are randomly arranged in the polymer. Hence Buna-S is copolymer.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Answer the following in brief." from Introduction to Polymer Chemistry→Introduction to Polymer Chemistry — all question types→Chemistry STD 12 Science question papers→Maharashtra Board STD 12 Science question papers→Maharashtra Board question paper generator→

Similar questions

Write three important steps required to determine molar conductivity.
→
Explain the common ion effect on dissociation of a weak acid.
→
How is ethanol prepared from the following compounds:
(a) Ethanal (b) Ethene (c) Bromoethane.
→
What are the features (or key points) of order of a reaction?
→
In acidic solution, sucrose is converted to a mixture of glucose and fructose in pseudo first order reaction. It has been found that the con-centration of sucrose decreased from $20 mmol _{ L ^{-}}$ 1 to $8 mmol L ^{-1}$ in 38 minutes. What is the half-life of the reaction?
→
How will you prepare ethanol, propan-2-ol and 2-methylpropan-2-ol from Grignard's reagent?
→
Define instantaneous rate of reaction. Explain pseudo first order reaction with suitable example.
→
What are the uses of $H _2 SO _4$ ?
→
Calculate the cell potential of the following cell at $25^{\circ} C$,
$Z _{ n ( S )}| \underset{ 0 . 1 ~ M }{ Z n _{\text {(aq) }}^{++}} \| \underset{ 0 . 5 ~ M }{ C u _{\text {(aq) }}^{++}} \mid C u$
Standard reduction potentials (SRP) of $Zn$ and $Cu$ are $-0.76 V$ and $0.334 V$ respectively.
→
What is osmotic pressure? How will you determine molar mass of solute from osmotic pressure?
→