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"Polyethersulfone (PES) is a similar polymer with low protein retention." But the structure shown is of a polyethersulfone. So what's the difference? Hansonrstolaf (talk) 20:27, 11 May 2011 (UTC)
PES does not have the alkyl/methylene that is present in PS. This allows each PS chain to adopt "cis" or "Trans" type orientations at each methylene. This produces a more random chain structure in PS than in PES. This produces a similar type of character that is present in branched hydrocarbons, or cis unsaturated fatty acids when compared with the unbranched or trans equivalents (represented by PES)184.108.40.206 (talk) 10:19, 19 February 2013 (UTC)
The article says polysulfone undergoes weathering. Is this truly "weathering" as defined, "exposure to atmosphere" - or photodegradation / ultraviolet degradation? (which seems more likely) Paulburnett (talk) 23:06, 4 May 2010 (UTC)
The article states that the Tg of Polysulfone is 185C. This is misleading since there are several different Polysulfones. Please specify which Polysulfone has a Tg of 185, and please give a reference. I am working with PPSU, which has a Tg of 218C. —Preceding unsigned comment added by 220.127.116.11 (talk) 14:12, 29 July 2010 (UTC)