Radiation synthesis and characteristics of PTFE-g-PSSA ion exchange membrane applied in vanadium redox battery
Creators
- 1. Beijing National Laboratory for Molecular Sciences, Department of Applied Chemistry. College of Chemistry and Molecular Engineering, Beijing Univ., Beijing (China)
Description
Radiation-induced grafting of styrene onto polytetrafluoroethylene (PTFE) membranes was studied by a simultaneous irradiation technique. Grafting was carded out using γ-radiation from a 60Co source at room temperature. Effects of absorbed dose, atmosphere, dose rate, and the concentration of initial monomer on the degree of grafting (DOG) were investigated and the most appropriate grafting condition was Obtained. Subsequently, sulphonation of the grafted PTFE membrane (PTFE-g-PS) was carried out and a series of ion exchange membranes (PTFE-g-PSSA) was prepared. Further characterizations of FTIR, TGA, and SEM testified that grafting and sulphonation of the membranes were successfully processed; moreover, grafting of styrene not only occurred in the surface of PTFE membrane, but also in the micropores of the membrane. Ion exchange capacity (IEC) and conductivity were found increase with the grafting yield. The results suggest that at a low dose, such as 17 kGy, the ion exchange membrane (IEM) which will be suitable for vanadium redox battery (VRB) use can be obtained. (authors)
Additional details
Publishing Information
- Journal Title
- Nuclear Science and Techniques
- Journal Volume
- 18
- Journal Issue
- 1
- Journal Page Range
- p. 50-54
- ISSN
- 1001-8042
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 41120571
- Subject category
- S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
- Descriptors DEI
- CAPACITY; CHEMICAL PREPARATION; CHEMICAL RADIATION EFFECTS; COBALT 60; DOSE RATES; FOURIER TRANSFORMATION; GAMMA RADIATION; GRAFT POLYMERS; INFRARED SPECTRA; ION EXCHANGE; ION EXCHANGE MATERIALS; IRRADIATION; MEMBRANES; MONOMERS; POLYSTYRENE; POLYTETRAFLUOROETHYLENE; RADIATION DOSES; REDOX FLOW BATTERIES; SCANNING ELECTRON MICROSCOPY; STYRENE; SULFONIC ACID ESTERS; SURFACES; SYNTHESIS; TEFLON; TEMPERATURE RANGE 0273-0400 K; THERMAL GRAVIMETRIC ANALYSIS; VANADIUM; YIELDS
- Descriptors DEC
- ALKYLATED AROMATICS; AROMATICS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHEMICAL ANALYSIS; COBALT ISOTOPES; DOSES; ELECTRIC BATTERIES; ELECTROCHEMICAL CELLS; ELECTROMAGNETIC RADIATION; ELECTRON MICROSCOPY; ELEMENTS; ENERGY STORAGE SYSTEMS; ENERGY SYSTEMS; ESTERS; FLUORINATED ALIPHATIC HYDROCARBONS; GRAVIMETRIC ANALYSIS; HALOGENATED ALIPHATIC HYDROCARBONS; HYDROCARBONS; INTEGRAL TRANSFORMATIONS; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; IONIZING RADIATIONS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MATERIALS; METALS; MICROSCOPY; MINUTES LIVING RADIOISOTOPES; NUCLEI; ODD-ODD NUCLEI; ORGANIC COMPOUNDS; ORGANIC FLUORINE COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; ORGANIC POLYMERS; ORGANIC SULFUR COMPOUNDS; PETROCHEMICALS; PETROLEUM PRODUCTS; PLASTICS; POLYETHYLENES; POLYMERS; POLYOLEFINS; POLYTETRAFLUOROETHYLENE; POLYVINYLS; QUANTITATIVE CHEMICAL ANALYSIS; RADIATION EFFECTS; RADIATIONS; RADIOISOTOPES; SPECTRA; SYNTHESIS; SYNTHETIC MATERIALS; TEMPERATURE RANGE; THERMAL ANALYSIS; TRANSFORMATIONS; TRANSITION ELEMENTS; YEARS LIVING RADIOISOTOPES
Optional Information
- Notes
- 7 figs., 5 refs.