SOLID-STATE NMR-STUDY OF THE POLYMERIZATION OF POLY(ETHER SULFONE)

Authors
CLAYDEN NJ PARKER DG THOROGOOD AS ROSE JB
Citation
Nj. Clayden et al., SOLID-STATE NMR-STUDY OF THE POLYMERIZATION OF POLY(ETHER SULFONE), Polymer international, 33(3), 1994, pp. 335-339
Citations number
11
Categorie Soggetti
Polymer Sciences
Journal title
Polymer international → ACNP
ISSN journal
09598103
Volume
33
Issue
3
Year of publication
1994
Pages
335 - 339
Database
ISI
SICI code
0959-8103(1994)33:3<335:SNOTPO>2.0.ZU;2-#
Abstract
The synthesis of poly(ether sulphone) using the 'carbonate' route base d on the reaction of 4,4'-dihydroxydiphenylsulphone, 4,4'-dichlorodiph enylsulphone and potassium carbonate dispersed in diphenylsulphone has been studied by C-13 CPMAS NMR spectroscopy. In the initial reaction the half potassium salt of 4,4'-dihydroxydiphenylsulphone is formed. N o evidence for a stable full salt was found at any time during the pol ymerisation cycle and no appreciable oligomer formation took place bef ore the polymerisation itself took place.