Results 21 to 30 of about 4,819 (221)

Ion exchange membranes based upon crosslinked sulfonated polyethersulfone for electrochemical applications [PDF]

, 2013
Synthesis and characterization of new ion exchange membranes made from chlorosulfonated polyethersul- fone (SO2Cl-PES) crosslinked by polyaminated crosslinking reagents have been performed.
FAUVARQUE, J.F, MABROUK, Walid, MATOUSSI, F., OGIER, Lionel, SOLLOGOUB, Cyrille, VIDAL, Serge   +5 more
core   +6 more sources

Synthesis and process optimization of electrospun PEEK-sulfonated nanofibers by response surface methodology [PDF]

, 2015
In this study electrospun nanofibers of partially sulfonated polyether ether ketone have been produced as a preliminary step for a possible development of composite proton exchange membranes for fuel cells.
Boaretti, Carlo, Lorenzetti, Alessandra, Modesti, Michele, Roso, Martina   +3 more
core   +2 more sources

Direct iminization of PEEK [PDF]

, 2011
Semi-crystalline poly(ether ketone)s are important high-temperature engineering thermoplastics, but are difficult to characterize at the molecular level because of their insolubility in conventional organic solvents.
Attwood T. E., Bishop M. T., Colquhoun H. M., Colquhoun H. M., Colquhoun H. M., Daoust D., Daoust D., Daoust D., Devaux J., Hergenrother P. M., Howard M. Colquhoun, Ioannis Manolakis, Lindfors B. E., Mohanty D. K., Paul Cross, Staniland P. A., Teasley M. F., Teasley M. F.   +17 more
core   +1 more source

Preparation and Characterization of UV Irradiated SPEEK/Chitosan Membranes

International Journal of Electrochemical Science, 2012
Cross-linked composite membranes of sulfonated poly(ether ether ketone) (SPEEK) with a chitosan content up to 50 wt%, were prepared by solution cast technique and ultraviolet (UV) curing.
N.A. Aini, M.Z.A. Yahya, A. Lepit, N.K. Jaafar, M.K. Harun, A.M.M. Ali   +5 more
doaj   +1 more source

The effects of water on the morphology and the swelling behavior of sulfonated poly(ether ether ketone) films [PDF]

, 2015
Thin sulfonated poly(ether ether ketone) films swell excessively in water. The extent of water-induced swelling is shown to be correlated with the optical anisotropy of the films, due to two distinct phenomena. Firstly, the optical anisotropy is directly
Akkilic, N., Benes, N.E., Koziara, B.T., Nijmeijer, K.   +3 more
core   +5 more sources

Fabrication and development of SPEEK/PVdF-HFP/SiO2 proton exchange membrane for microbial fuel cell application

Chemical Engineering Journal Advances, 2023
This study presents the potential of sulfonated poly (ether-ether-ketone)/ poly (vinylidene fluorideco-hexafluoro propylene)/SiO2 (SPEEK/PVdF-HFP/SiO2) composite proton exchange membrane for the use of microbial fuel cell.
Jagdeep Kumar Nayak, Uday Shankar, Kundan Samal   +2 more
doaj   +1 more source

Crosslinked SPEEK membranes: Mechanical, thermal, and hydrothermal properties [PDF]

, 2012
The thermal and mechanical behavior, the water uptake (WU), and water diffusion coefficient of sulfonated poly(ether ether ketone) (SPEEK)membranes annealed at 180 degrees C for different times were explored by high-resolution thermogravimetric analysis,
Chailan, J, Di Vona, M, Hou, H, Khadhraoui, M, Knauth, P, Maranesi, B, Polini, R   +6 more
core   +3 more sources

Sulfonated poly(ether ether ketone)/hydroxyapatite membrane as biomaterials: process evaluation

Polímeros, 2019
Poly(ether ether ketone) (PEEK) has excellent properties, such as high biocompatibility and an elastic modulus similar to bone, which makes it a suitable biomaterial.
Cristiane Agra Pimentel, José William de Lima Souza, Flávia Suzany Ferreira dos Santos, Mayelli Dantas de Sá, Valéria Pereira Ferreira, Gislaine Bezerra de Carvalho Barreto, José Filipe Bacalhau Rodrigues, Wladymyr Jefferson Bacalhau de Sousa, Cláudio Orestes Britto Filho, Francisco Kegenaldo Alves de Sousa, Marcus Vinicius Lia Fook   +10 more
doaj   +1 more source

Novel proton conducting core–shell PAMPS-PVBS@Fe2TiO5 nanoparticles as a reinforcement for SPEEK based membranes

Scientific Reports, 2021
In this study, new nanocomposite membranes from sulfonated poly (ether ether ketone) (SPEEK) and proton-conducting Fe2TiO5 nanoparticles are prepared by the solution casting method.
Parisa Salarizadeh, Mehran Javanbakht, Mohammad Bagher Askari, Khadijeh Hooshyari, Morteza Moradi, Hossein Beydaghi, Mohadese Rastgoo-Deylami, Morteza Enhessari   +7 more
doaj   +1 more source

Study of the variation of catalyst loading in cathode for SPEEK/CSMM membrane in direct methanol fuel cell (DMFC) [PDF]

, 2014
Variation of anode catalyst loading for modified sulfonated poly (ether ether ketone) (SPEEK) with charged surface modifying macromolecules (cSMM) membrane was studied, in order to get the higher performance in DMFC.
Jaafar, Juhana, Mohd. Norddin, Muhammad Noorul Anam, Rosli, Siti Erlyane, Sudirman, Rubita   +3 more
core   +1 more source