Explain the difference between Buna-N and Buna-S.
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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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.....
Comments
Very good answer thnk u
which one is more swells in oil or solvant
Not appropriate answer....
In book sodium is not given, CN is given....
Wonderful answer
Wonderful â£ï¸ thank u for helping me ððð
Very good site and helpful one
Natural rubber hai ya synthetic rubber
Clearly expiation
Clearly explanation