Talk:Polysulfone
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polysulfone vs polyethersulfone
[edit]"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)184.189.220.114 (talk) 10:19, 19 February 2013 (UTC)
"Weathering' of polysulfone
[edit]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)
Tg of Polysulfone = 185?
[edit]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 208.101.182.66 (talk) 14:12, 29 July 2010 (UTC)
how about recycling capability
[edit]Possible problems in table of significant polysulfones
[edit]In the table at the end, the relationships between the structural formulae and the systematic names is unclear. E.g. "Poly(oxy-1,4-phenylsulfonyl-1,4-phenyl)" doesn't seem to make sense, because phenyl can only have one group attached, not two. The catalogue numbers 25608-63-3 and 25667-42-9 appear to describe the same compound. This table may require attention from someone knowledgeable about the subject. — Preceding unsigned comment added by Zato123 (talk • contribs) 13:29, 6 November 2020 (UTC)
toxicity?
[edit]shouldn't there be at least some sort of mention of toxicity? whether it's known or not, generally recognized as safe status, or LD50 or anything like that? 2601:580:C201:42E0:C39A:A34B:4A15:2286 (talk) 06:53, 5 June 2024 (UTC)
- "Some sort of mention of toxicity" for which polymer? --Smokefoot (talk) 15:33, 5 June 2024 (UTC)