akre
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Sulfonation of styrene
I'm going to try sulfonate poly(styrene). I was thinking of using sulfuric acid and sulfuryl chloride (Cl2O2S). Am I right if I assume that the
reaction:
Cl2O2S + H2SO4 <-> SO2 + 2 HCl + SO3
takes place?
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guaguanco
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| Quote: | Originally posted by akre
I'm going to try sulfonate poly(styrene). I was thinking of using sulfuric acid and sulfuryl chloride (Cl2O2S). Am I right if I assume that the
reaction:
Cl2O2S + H2SO4 <-> SO2 + 2 HCl + SO3
takes place? |
I would actually expect that mixture to equilibrate with Chlorosulfonic acid.
(Repaired links)
You might want to look at:
http://wwwsoc.nii.ac.jp/jsac/analsci/pdfs/a17_1117.pdf
http://ecl.web.psi.ch/Publications/iface_pub/EActa_02
http://www.physics.nus.edu.sg/~phyjiwei/ChemMat2002.pdf
[Edited on 22-1-2004 by guaguanco]
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blip
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Don't you mean:
http://www.physics.nus.edu.sg/~phyjiwei/ChemMat2002.pdf
I can't figure out what's wrong with the middle one though.
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akre
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Do you mean the reaction would be:
SO2Cl2 + H2SO4 <-> HClO3S + HCl + SO3
or just
SO2Cl2 + H2SO4 <-> 2 HClO3S
what is causing the fumes when dripping sulfuryl chloride into sulfuric acid? The water in the sulfuric acid?
[Edited on 31-1-2004 by akre]
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guaguanco
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Yes, you're generating a certain amount of HCl unless the H2SO4 is anhydrous.
Note that H2SO4 is a perfectly good sulfonating agent in it's own right, although there's nothing wrong with chlorosulfonic acid. Take your
pick.
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akre
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I've read somewhere sulfonation with sulfuric acid requires high temperatures and long reaction times as opposed to chlorosulfonic acid.
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Nosferatu
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| Quote: | Originally posted by akre
I've read somewhere sulfonation with sulfuric acid requires high temperatures and long reaction times as opposed to chlorosulfonic acid.
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For sulfonation, oleum works better, and it's more fun to work with. 
http://www.disobey.com/horror/movie_media/nosferatu/download...
[Edited on 17-2-2004 by Nosferatu]
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