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Miscibility and gas permeability of poly(ethylene-co-5,4 mol% 3,5,5-trimethylhexyl methacrylate)-polydimethyl-siloxane blends
Authors:K. Mizoguchi  K. Terada  Y. Naito  Y. Kamiya  S. Tsuchida  S. Yano
Affiliation:(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
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
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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