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Solid state NMR study of the polymerisation of poly(ether sulphone)
Author(s) -
Clayden Nigel J.,
Parker David G.,
Thorogood Adrian S.,
Rose John B.
Publication year - 1994
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1994.210330314
Subject(s) - polymerization , oligomer , polymer chemistry , ether , salt (chemistry) , potassium carbonate , chemistry , carbonate , nuclear magnetic resonance spectroscopy , solid state , williamson ether synthesis , materials science , organic chemistry , polymer
Abstract The synthesis of poly(ether sulphone) using the ‘carbonate’ route based on the reaction of 4,4′‐dihydroxydiphenylsulphone, 4,4‐dichlorodiphenylsulphone and potassium carbonate dispersed in diphenylsulphone has been studied by 13 C CPMAS NMR spectroscopy. In the initial reaction the half potassium salt of 4,4′‐dihydroxydiphenylsulphone is formed. No evidence for a stable full salt was found at any time during the polymerisation cycle and no appreciable oligomer formation took place before the polymerisation itself took place.