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CBSE Class 12-science Answered

What is Buna-S? How is it prepared?
Asked by Topperlearning User | 22 Jun, 2016, 12:23: PM
answered-by-expert Expert Answer

Buna-S is a copolymer of butadiene and styrene. It is prepared by copolymerisation of 1,3 butadiene and styrene along with sodium.

Answered by | 22 Jun, 2016, 14:23: PM

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CBSE 12-science - Chemistry
A polymer sample contains 30%(by weight) of chains with molecular weight 10000, 30%(by weight) of the chains with molecular weight 20000, and the rest of chains with molecular weight 30000. Calculate the number average and weight average molecular weight of the sample.
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Write the structures of monomers used to obtain the following polymers: (a) Natural rubber (b) PVC (c) Nylon-6,6
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What is natural rubber?
Asked by Topperlearning User | 23 Jun, 2014, 16:35: PM
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What is a copolymerisation reaction? Give example.
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CBSE 12-science - Chemistry
How is nylon-6,6 prepared?
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CBSE 12-science - Chemistry
How is polyethylene prepared?
Asked by Topperlearning User | 22 Jun, 2016, 12:24: PM
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CBSE 12-science - Chemistry
What is Buna-S? How is it prepared?
Asked by Topperlearning User | 22 Jun, 2016, 12:23: PM
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What is PMMA, PAN and PVC?
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Give examples of synthetic rubber?
Asked by Topperlearning User | 12 Jun, 2014, 15:35: PM
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