Question

For Chemistry - Lavoisier's :-

Give the preparation of the following with Full Explanation :-

i) Buna - N
ii) Buna - S
iii) Nylon - 6 , 6
iv) Nylon - 6 , 10 ​

Answer 1

ii) Buna-S rubber

It is obtained by the polymerisation of butadiene and styrene in presence of sodium metal.

Uses: Buna-S is extremely resistant towards wear and tear and used for the manufacture of tyres, rubber tubes.

iii) Nylon-6,6

It is obtained by condensing adipic acid with hexamethylene diamine with the elimination of water molecule.

Uses: It is fabricated into sheets, bristles for brushes.

Answer 2

${ \quad \qquad \sf { \huge { \bold { \mathfrak { \red { \underbrace { The \: Required \: Answer } } } } } } }$

${ \quad \qquad \huge \sf { \bold { \mathfrak { \blue { \underbrace { Question \: 1 } } } } } }$

• Buna - N also named as 1 , 3 - Butadiene Acrylonitrile copolymer is formed by the Copolymerisation of 1 , 3 - Butadiene with Acrylonitrile in the presence of Sodium metal !

Refer to attachment 1 for the reaction !

Points to Remember :-

• The common name of the compound is Buna - N .
• The IUPAC name of the compound is 1 , 3 - Butadiene Acrylonitrile Copolymer .
• In the Name " Buna - N " Bu stands for 1 , 3 - Butadiene , na stands for Sodium and N stands for Acrylonitrile .

${ \quad \qquad \huge \sf { \bold { \mathfrak { \orange { \underbrace { Question \: 2 } } } } } }$

• Buna - S also named as 1 , 3 - Butadiene styrene copolymer is formed by the Copolymerisation of 1 , 3 - Butadiene with Styrene in the presence of Sodium metal !

Refer to the attachment 2 for Reaction !

Points to Remember :-

• The Common name of the Compound is Buna - S .
• The IUPAC name of the compound is 1 , 3 - Butadiene Styrene Copolymer .
• In the name " Buna - S " Bu stands for 1 , 3 - Butadiene , na stands for sodium and S stands for Styrene .

${ \quad \qquad \huge \sf { \bold { \mathfrak { \blue { \underbrace { Question \: 3 } } } } } }$

• Nylon - 6 , 6 also named as Poly Hexamethylene adipamide is a condensation polymer formed by the Condensation polymerisation of Hexamethylenediamine with adipic acid at 575 K temperature as it is a condensation process . So , water is given off as a product.

Refer to the attachment 3 for reaction !

Points to Remember :-

• The Common name of the compound is Nylon - 6 , 6 .
• The IUPAC name of the compound is Poly Hexamethylene adipamide .
• In the Name " Nylon - 6 , 6 " Nylon stands for the product formed , First "6" is because their is 6 carbon in Hexamethylenediamine and second "6" is for Adipic acid in which 6 carbon are present at all .

${ \quad \qquad \huge \sf { \bold { \mathfrak { \orange { \underbrace { Question \: 4 } } } } } }$

• Nylon - 6 , 10 also named as Poly Hexamethylene sebacamide is a condensation polymer formed by the Condensation polymerisation of Hexamethylenediamine with sebacic acid at 575 K temperature as it is a condensation process . So , water is given off as a product.

Refer to the attachment 4 for reaction !

Points to Remember :-

• The Common name of the compound is Nylon - 6 , 10 .
• The IUPAC name of the compound is Poly Hexamethylene sebacamide .
• In the Name " Nylon - 6 , 10 " Nylon stands for the product formed , First "6" is because their is 6 carbon in Hexamethylenediamine and second "10" is for Sebacic acid in which 10 carbon are present at all .