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Subject: copolymer crystalline/amorphous membrane

Date: 06/13/02 at 3:28 PM
Posted by: Jackie Charbel
E-mail: jcharbel@YSI.com
Message Posted:

I am searching for the perfect copolymer to use as a membrane for which dissolved oxygen can pass through when it aqueous media. Teflon, which is our current membrane, is not good enough, as it is too flow dependent. (meaning that high turbidity gives more accurate readings than low turbidity due to the quick reduction of the oxygen molecules after they pass through the membrane. I have tested LLDPE, HDPE, PVC/PVDC thus far. I need a polymer which is permeable to O2, but not too permeable. Perhaps a crystalline/amorphous copolymer?

Thank you,
Jackie Charbel

YSI Inc.

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