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Chemical modification of polysulfones II: an efficient method for introducing primary amine groups onto the aromatic chain

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Academic year: 2021

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Figure  1.  Reaction scheme  for preparing  ortho sulfone amine  derivatives  3 from  commercial Udel polysulfone  (1A)  and Radel  poly(ary1  sulfone)  (1B)  via azide  intermediates  2
Figure  5.  Comparative 'H-NMR spectra (aromatic region)  of  poly(su1fone (ortho sulfone)  diamine)  3A,  and  of  poly(ary1  sulfone (ortho sulfone) diamine)  3B
Figure  10.  Comparative FTIR  spectra  of  three polysulfone  and poly(ary1 sulfone amines)  3A, 3B,  and  7
Figure 12.  DSC  scans  for  diamines 3A  and  7  showing  Tg)s  and showing an  exothermic increase at  270 "C for  7

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