Results 251 to 260 of about 14,179 (307)
Some of the next articles are maybe not open access.
Journal of Polymer Research, 2014
The monomer containing sulfone and amide linkages, namely N,N'-bis(4-phenoxybenzoyl)-4,4'-diaminodiphenyl sulfone (BPBDAS), was conveniently prepared by the condensation of 4,4′-diaminodiphenyl sulfone with 4-phenoxybenzoyl chloride in N,N-dimethylacetamide (DMAc).
Yu Wang +4 more
openaire +1 more source
The monomer containing sulfone and amide linkages, namely N,N'-bis(4-phenoxybenzoyl)-4,4'-diaminodiphenyl sulfone (BPBDAS), was conveniently prepared by the condensation of 4,4′-diaminodiphenyl sulfone with 4-phenoxybenzoyl chloride in N,N-dimethylacetamide (DMAc).
Yu Wang +4 more
openaire +1 more source
ACS Nano, 2019
Two-dimensional (2D) hexagonal boron nitride (h-BN) has attracted great interest due to its excellent chemical and thermal stability, electrical insulating property, high proton conductivity, and good flexibility.
Jiaman Liu +7 more
semanticscholar +1 more source
Two-dimensional (2D) hexagonal boron nitride (h-BN) has attracted great interest due to its excellent chemical and thermal stability, electrical insulating property, high proton conductivity, and good flexibility.
Jiaman Liu +7 more
semanticscholar +1 more source
Crystallization and melting behavior of poly(ether ether ketone)/poly(aryl ether sulfone) blends
Journal of Applied Polymer Science, 2003AbstractThe crystallization and melting behavior of poly(ether ether ketone) (PEEK) in blends with poly(aryl ether sulfone) (PES) prepared by melt mixing are investigated by differential scanning calorimetry (DSC) and wide‐angle X‐ray scattering (WAXS).
Bhanu Nandan +2 more
openaire +1 more source
Synthesis and properties of poly(aryl ether sulfone ether ketone ketone) (PESEKK)
Journal of Applied Polymer Science, 2005Abstract4,4′‐bis(Phenoxy)diphenyl sulfone (DPODPS) was synthesized by reaction of phenol with bis(4‐chlorophenyl) sulfone in tetramethylene sulfone in the presence of NaOH. Two poly(aryl ether sulfone ether ketone ketone)s (PESKKs) with high molecular weight were prepared by low temperature solution polycondensation of DPODPS and terephthaloyl chloride
Hong‐Li Wen +4 more
openaire +1 more source
Sulfonated poly(ether ether ketone)/polyaniline composite proton-exchange membrane
Journal of Membrane Science, 2006Abstract Sulfonated poly(ether ether ketone) (PEEK) was prepared by sulfonation of commercial Victrex@ PEEK and degree of sulfonation was found to be about 44.5% by 1H NMR. Sulfonated PEEK/polyaniline composite membranes, in order to prevent methanol crossover, were prepared by chemical polymerization of a thin layer of polyaniline (PANI) in the ...
R.K. Nagarale +2 more
openaire +1 more source
Journal of Colloid and Interface Science, 2017
Two N3-substituted imidazoles 1,2-dimethylimidazole and 1-butyl-2-methylimidazole were chosen to functionalize poly(aryl ether ketone), respectively. The generated imidazolium cations could electrostatically react with sulfonate ions of the sulfonated poly(ether ether ketone) forming the ionic crosslinking structure of the membranes.
Yixin, Xu +4 more
openaire +2 more sources
Two N3-substituted imidazoles 1,2-dimethylimidazole and 1-butyl-2-methylimidazole were chosen to functionalize poly(aryl ether ketone), respectively. The generated imidazolium cations could electrostatically react with sulfonate ions of the sulfonated poly(ether ether ketone) forming the ionic crosslinking structure of the membranes.
Yixin, Xu +4 more
openaire +2 more sources
Journal of Applied Polymer Science, 2000
Binary blends of the sulfonated poly(ether ether ketone) (SPEEK)–poly(ether imide) (PEI) and SPEEK–polycarbonate (PC), and ternary blends of the SPEEK–PEI–PC, were investigated by differential scanning calorimetry. SPEEK was obtained by sulfonation of poly(ether ether ketone) using 95% sulfuric acid.
Yong Sung Chun +3 more
openaire +1 more source
Binary blends of the sulfonated poly(ether ether ketone) (SPEEK)–poly(ether imide) (PEI) and SPEEK–polycarbonate (PC), and ternary blends of the SPEEK–PEI–PC, were investigated by differential scanning calorimetry. SPEEK was obtained by sulfonation of poly(ether ether ketone) using 95% sulfuric acid.
Yong Sung Chun +3 more
openaire +1 more source
Modification of sulfonated poly(ether ether ketone) with phenolic resin
Polymers for Advanced Technologies, 2007AbstractSoluble phenol formaldehyde resin containing hydroxymethyl groups has been used to modify sulfonated poly(ether ether ketone) (SPEEK). Modification has been carried out with films containing both the polymers and using dimethyl formamide (DMF) as casting solvent at various temperatures under reduced pressure. Associated solvent and the hydrogen‐
P. C. Deb +4 more
openaire +1 more source
Journal of Applied Polymer Science, 2010
AbstractA series of sulfonated poly(ether sulfone ether ketone ketone) (SPESEKK) with different degree of sulfonation (DS) are prepared by the postsulfonation of PESEKK using chlorosulfonic acid as sulfonating agent and concentrated sulfuric acid as solvent.
Weihua Zhou +7 more
openaire +1 more source
AbstractA series of sulfonated poly(ether sulfone ether ketone ketone) (SPESEKK) with different degree of sulfonation (DS) are prepared by the postsulfonation of PESEKK using chlorosulfonic acid as sulfonating agent and concentrated sulfuric acid as solvent.
Weihua Zhou +7 more
openaire +1 more source