## Abstract The sulphonated phenol novolac (PNBS) which was used as a curing agent of epoxy was synthesised from phenol novolac (PN) and 1, 4βbutane sultone and confirmed by FTIR and ^1^H NMR. The degree of sulphonation (DS) in PNBS was calculated by ^1^H NMR. The semiβIPN membranes composed of sul
Sulphonated poly ether ether ketone/amino-diphenylsilandiol composite electrolyte for PEM fuel cells
β Scribed by Z. Ahmed; S. Belitto; M. L. Di Vona; M. Trombetta; E. Traversa; S. Licoccia
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 875 KB
- Volume
- 124
- Category
- Article
- ISSN
- 0021-8995
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## Abstract New series of fully aromatic poly(ether ketone)s with a biphenyl pendant groups were synthesised. A direct comparison of sulphonation reaction among monophenylated poly(ether ether ketone) (PhβPEEK), biphenylated poly(ether ether ketone) (BiPhβPEEK) and PEEK (Victrex) was thoroughly inv
## Abstract The sulfonated poly(ether ether ketone) (SPEEK) / polytetrafluoroethylene (PTFE) composite membranes were produced to aid the swelling properties. The PTFE porous films were used as reinforcing material for the SPEEK/PTFE composite membranes. Scanning electron micrographs showed that SP