abstract |
Amidoalkanesulfonic acids are prepared by reacting a molar excess of an unsaturated nitrile, a source of SO3, and an olefin, in a substantially non- aqueous medium, and transferring the crude reaction product containing amidoalkanesulfonic acid, without substantial purification steps, into an apparatus for incorporation of the amidoalkanesulfonic acid into a copolymer . |