Dipolar aprotone dissolvents

The block-copolymers of polysulfone and polyesters can be also produced [188] by the reaction of aromatic polysulfones in environment of dipolar aprotone dissolvents (dimethylsulfoxide, N-methylpirrolydone, N-methylcaprolactam, N, N -dimethylacetamides or their mixes) with alyphatic polyesters containing not less than two edge OH-groups in the presence of basic catalyst - carbonates of alkali metals Li, Na, K. 

The simple copolyesterketones (copolyesteiketonearylates) are synthesized [386] and the method for production of copolymers of polyarylates and polycarbonate with polyesterketones is patented [387], The reaction is held in dipolar aprotone dissolvent in the presence of interface catalyst (hexaalky Iguanidinehalogenide). 

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See also in sourсe #XX -- [ ]

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