Explain the difference between Buna-N an | Class 12 Chemistry Chapter Polymers, Polymers NCERT Solutions

Question:

Explain the difference between Buna-N and Buna-S.

Answer:

Buna – N

Buna - N is a copolymer of 1,3−butadiene and acrylonitrile. It is also called Nitrile rubber (NBR). It is obtained by polymerization of 1,3-butadiene and acrylonitrile in the presence of sodium .It is used for making oil seels, manufacturing of tank linings, protective gloves etc.

Buna − S

Buna - S is a copolymer of 1,3−butadiene and styrene. It is obtained by polymerization of 1,3-Butadiene and styrene in the ratio 3:1 in the presence of sodium.

In Buna - S, Bu stands for butadiene, Na for sodium and S for styrene. It is also called SBR (Styrene Butadiene Rubber).It has slightly less tensile strength than natural rubber. It is used for making automobile tyres, rubber soles, belts, hoses etc.

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Comments

Tabassum parween
2020-02-25 12:47:55

Very good answer thnk u

Trinayan
2019-10-20 20:36:07

which one is more swells in oil or solvant

Debjit kundu
2019-09-08 11:10:35

Not appropriate answer....

Debjit kundu
2019-09-08 11:09:34

In book sodium is not given, CN is given....

Somnath Ghosh
2019-06-14 14:01:03

Wonderful answer

Gayathri Prasad
2019-03-13 04:36:57

Wonderful â£ï¸ thank u for helping me ððð

Kritika Motiramani
2019-02-17 13:27:10

Very good site and helpful one

Suresh kumar
2019-02-11 17:33:27

Natural rubber hai ya synthetic rubber

Amar pratap jarvis
2018-12-27 11:30:44

Clearly expiation

Amar pratap jarvis
2018-12-27 11:29:58

Clearly explanation

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Welcome to the NCERT Solutions for Class 12 Chemistry - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 5: Explain the difference between Buna-N and Buna-S.....

Explain the difference between Buna-N an | Class 12 Chemistry Chapter Polymers, Polymers NCERT Solutions

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