 | This article is rated Start-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects: | |||||||||||||||||
| ||||||||||||||||||
 | This article contains a translation of Polysulfone from de.wikipedia. |
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
editThe 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?
editThe 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
editPossible problems in table of significant polysulfones
editIn 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?
editshouldn'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)