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Novel functional polymers: Poly(dimethylsiloxane)-polyamide multiblock copolymer. VII. Oxygen permeability of aramid-silicone membranes in a gas-membrane-liquid system by Takeo Matsumoto; Toshiro Uchida; Akio Kishida; Tsutomu Furuzono; Ikuro Maruyama; Mitsuru Akashi is a Materials Science article available to read on EtoBox.
What is Novel functional polymers: Poly(dimethylsiloxane)-polyamide multiblock copolymer. VII. Oxygen permeability of aramid-silicone membranes in a gas-membrane-liquid system about?
Poly(dimethylsiloxane) (PDMS) and aromatic polyamide (aramid) multiblock copolymer (PAS) membranes containing ®55 wt % of PDMS were prepared. Their tensile strength, morphology, and oxygen permeation property were investigated. The observed high tensile strength of PAS with 55 wt % of PDMS indicates the presence of PDMS-aramid co-continuous phases with lamellar structures; furthermore, the microphase-separated structures of PAS membranes were observed by means of transmission electron microscopy. The overall oxygen permeation resistance of a conventional silicone rubber showed typical dependence on stirrer speed, which was derived from the macroscopic relationship between the membrane-liquid interfacial resistance and the stirrer speed. However, the overall oxygen permeation resistances of the PAS membranes were found not to simply depend on stirrer speed. Combining with the oxygen permeability of PAS in the case of a gas-membrane-gas system, the interface resistances of the membranes were evaluated. The interface resistances of the PAS membranes with the two-phase nature were more susceptible to the hydrodynamic parameter than that of the silicone rubber and became lower than that
Who reads Novel functional polymers: Poly(dimethylsiloxane)-polyamide multiblock copolymer. VII. Oxygen permeability of aramid-silicone membranes in a gas-membrane-liquid system?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- Takeo Matsumoto; Toshiro Uchida; Akio Kishida; Tsutomu Furuzono; Ikuro Maruyama; Mitsuru Akashi
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0021-8995)
- Published
- 1997
- Language
- EN
- Field
- Materials Science (Physical Sciences)