Application of poly(phthalazinone ether sulfone ketone)s to gas membrane separation

Abstract

A series of poly(phthalazinone ether sulfone ketone) (PPESK) copolymers containing different component ratios of bis(4-fluorodiphenyl) ketone and bis(4-chlorodiphenyl)sulfone with respect to a certain amount of 4-(4-hydroxyphenyl)-2,3-phthalazin-1-one were synthesized by polycondensation. Glass transition temperatures of these polymers were adjusted from 263°C to 305°C by changing the ratios of reactants. Gas permeability and selectivity of the dense membranes of the polymers for three kinds of gases (CO 2 , O 2 , and N 2 ) were determined at different temperatures. The result indicated that the membrane of PPESK (S/K ϭ 1/1, mol ratio) had an excellent gas separation property. Permeability of the polymer membranes for CO 2 , O 2 , and N 2 was P CO 2 ϭ 4.121 barrier, P O 2 ϭ 0.674 barrier, and P N 2 ϭ 0.0891 barrier, respectively. Separation factors of ␣ O 2 /N and ␣ CO 2 /N 2 were 7.6 and 46, respectively. New material was made into a composite membrane with silicone rubber for blocking up leaks and defects on the surface of its nonsymmetrical membrane. As a result of the test, permeability of the composite membrane was J O 2 ϭ 7.2 ϫ 10 Ϫ6 cm 3 (STP) cm Ϫ2 S Ϫ1 cm Ϫ1 Hg and J N 2 ϭ 0.99 ϫ 10 Ϫ6 cm 3 (STP) cm Ϫ2 S Ϫ1 cm Ϫ1 Hg, whereas the ␣ O 2 /N 2 was still higher than 7. These showed that PPESKs had a bright prospect as the potential membrane material for high-temperature gas separation.

Dynamic Mechanical Properties of PPESK/Silica Hybrid Materials

“…Novel poly(phthalazinone ether sulfone ketone) (PPESK) copolymers containing different ratios of diphenylsulfone and diphenylketone units were previously synthesized [2][3][4] from 1,2-dihydro-4-(4-hydroxy-phenyl)-phthalazin-1-one [5,6] . There are plans to commercialize these condensation polymers, derived from this phthalazinone monomer that is readily prepared from the commodity chemicals phenol, phthalic anhydride and hydrazine.…”

“…So it can be used as a substitute for materials in numerous engineering applications. In addition, membranes made from PPESK have shown good separation and permeation properties for both gas and liquid separations [4,7] .…”

Facile Synthesis and Structural Characterization of Some Phthalazin-1(2H)-one Derivatives as Antimicrobial Nucleosides and Reactive Dye

“…In addition phthalazinone and its derivatives were bisphenol-like monomers which can be polymerized with the activated aryl dihalide monomers to give amorphous polymers [23] with high glass transition temperature and excellent thermo-stability, which are soluble in common organic solvents [23,24]. Recently [25][26][27] a series of poly(phthalazinone ether sulfone ketone(PPESK)) copolymers used as potential polymer in proton exchange membrane fuel cells [PEMFCs]. Corrosion of metals is a major industrial problem that has attracted many investgation and researchers [28,29].…”

Performance control of asymmetric poly(phthalazinone ether sulfone ketone) ultrafiltration membrane using gelation

“…Therefore, it is necessary to develop high-temperature resistant and chemical stability membrane materials. Poly(phthalazine ether sulfone ketone) (PPESK) is a novel polymer, which was synthesized by Xigao Jian et al [2]. And the polymer contains rigid aromatic rings and shows superior mechanical strength, chemical resistance and very high glass transition temperature (Tg) [3].…”

“…It could be concluded from the polymer's properties that the polymer has potential for longer life and lower capital cost membrane preparation. It was also demonstrated that PPESK is a potential membrane material for UF [4] and high temperature gas separation [2].…”