Effect of dispersion state of Cloisite15A® on the performance of SPEEK/Cloisite15A nanocomposite membrane for DMFC application [PDF]
, 2011 The introduction of 2,4,6-triaminopyrimidine (TAP) into sulfonated poly(ether ether ketone) (SPEEK)/Cloisite15A® nanocomposite membranes were investigated for the purpose of maintaining low methanol permeability and suppressing swelling in direct ...
Ismail, Ahmad Fauzi +2 more
core +1 more source
Small‐Molecule Activation of mRNA Translation by Click‐to‐Release Reaction in Cells
Angewandte Chemie, EarlyView.A new method to control mRNA activity using bioorthogonal click‐to‐release reactions is presented. The 5′ cap is modified with a trans‐cyclooctene (TCO) that quickly reacts with hydroxyaryl‐tetrazines and efficiently releases the native cap 0. TCO‐capped mRNAs are initially translationally inactive but can be activated with non‐toxic, cell‐permeable ...
Tess Vosman +5 more
wiley +2 more sources
Indonesian Journal of Chemistry, 2021 Polyvinylidene fluoride (PVDF) membrane and its derivative have been investigated the permeation ability for creatinine and urea. The membrane was made by an inversion precipitation system in N,N-dimethyl acetamide (DMAc) and water as non-solvents.
Retno Ariadi Lusiana +8 more
doaj +1 more source
Polymer Testing, 2021 Sulfonated polyether ether ketone is currently under investigation to replace the expensive Nafion® as polymer electrolyte membrane. Sulfonic acid group is hydrophilic in nature and plays a key role in proton transfer in polymer electrolyte membranes ...
Sher Ayaz, Hai-Yin Yu
doaj +1 more source
Preparation of Sulfonated Poly (Ethylene-co-tetrafluoroethylene-graft-styrene) Based Polymer Electrolyte Membranes for Fuel Cell by Using Gamma Irradiation Technique [PDF]
, 2012 Poly (ethylene-co-tetrafluoroethylene-graft-styrene-sulfonate) was successfully prepared by irradiation grafting of a styrene monomer into ethylenetetrafluoro-ethylene (ETFE) films and followed by sulfonation of the graft chains. Five film sheets of ETFE
Suliwarno, A. (A)
core +3 more sources
Phosphorus-containing sulfonated polyimides for proton exchange membranes [PDF]
, 2008 Synthesis and characterization of the novel sulfonated BAPPO monomer and its use in the synthesis of a new phosphine oxide-based sulfonated polyimide are described. BTDA, 6FDA, and DDS were used as monomers in the polyimide synthesis.
Cornet +23 more
core +1 more source
Membranes, 2022 Two types of poly(5-phenyl-2-norbornene) were synthesized via ring opening metathesis and addition polymerization. The polymers sulfonation reaction under homogeneous conditions resulted in ionomer with high sulfonation degree up to 79% (IEC 3.36 meq/g).
Oleg S. Morozov +8 more
doaj +1 more source
Synthesis and characterization of polysulfone/layered double hydroxides nanocomposite membranes for fuel cell application [PDF]
, 2014 In the present study, sulfonated polysulfone (SPSU)/layered double hydroxide (LDH) composite membranes for use in proton exchange membrane fuel cells (PEMFCs) were investigated.
Galván Sierra, Juan Carlos +4 more
core +2 more sources
Functionalization of different polymers with sulfonic groups as a way to coat them with a biomimetic apatite layer [PDF]
, 2007 Covalent coupling of sulfonic group (–SO3H) was attempted on different polymers to evaluate efficacy of this functional group in inducing nucleation of apatite in body environment, and thereupon to design a simple biomimetic process for preparing ...
A. OYANE +31 more
core +1 more source
SANS from Salt-Free Aqueous Solutions of Hydrophilic and Highly Charged Star-Branched Polyelectrolytes [PDF]
, 2016 International audienceScattering functions of sodium sulfonated polystyrene (NaPSS) star-branched polyelectrolytes with high sulfonation degrees were measured from their salt-free aqueous solutions, using the Small Angle Neutron Scattering (SANS ...
Boué, François +5 more
core +4 more sources