Miscibility and gas permeability of poly(ethylene-co-5,4 mol% 3,5,5-trimethylhexyl methacrylate)-polydimethyl-siloxane blends |
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| Authors: | K Mizoguchi K Terada Y Naito Y Kamiya S Tsuchida S Yano |
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| Institution: | (1) National Institute of Materials and Chemical Research 1-1 Higashi Tsukuba, Ibaraki 305, Japan, JP;(2) Nakanihon Automotive College 1301 Sakahogi Kamo, Gifu 505, Japan, JP;(3) Department of Chemistry Faculty of Engineering Gifu University 1-1 Yanagido Gifu, 501-11, Japan, JP |
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| Abstract: | Blends of poly(ethylene-
co-5.4 mol% 3,5,5-trimethylhexyl methacrylate) (PE-TMHM) with poly(dimethylsiloxane) (PDMS) were prepared in the PDMS content
range from 0 to 20%. The miscibility was studied for PE-TMHM–PDMS blends by DSC, dynamic mechanical and microscopic spectroscopy,
and the gas permeability was measured for O2, N2 and CO2 as function of PDMS content. PE-TMHM and PDMS were partially miscible with each other below 20 wt% of PDMS content. The permeability
coefficients (P) for O2, N2 and CO2 were increased by the blending of PDMS to PE-TMHM. The change of P for O2 with PDMS content well reflected the partially miscible phase separation behavior.
Received: 10 June 1996 Accepted: 14 August 1996 |
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| Keywords: | Poly(ethylene-co-5 4 mol% 3 5 5-trimethylhexyl methacrythlate) poly(dimethyl-siloxane) miscibility permeability dynamic elastic measurement DSC |
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