Talk:Synthetic membrane

2006 talk

Aren't all membranes semi-permeable? That is, the whole point of a membrane is that it lets some things through and others not. Membranes by definition are permselective or semi-permeable barriers.

Some of this material can be folded into the cell membrane article while other stuff should go into the artificial membrane article. Journeyman 10:36, 9 July 2006 (UTC)

No, not all membranes are permeable. Some completely separate two things. While it is often the case in biology that they are permeable, in other disciplines they are not. pschemp | talk 14:56, 9 July 2006 (UTC)

I have answered issues related to cell membranes elsewhere. In my study of artificial membranes, they can be porous (eg. UF, MF) or non-porous (eg. RO) but they are always semi-permeable. The current artificial membrane article states that they permit "selective transport of material", i.e. they are semi-permeable.

I understand that in the building field, the word 'membrane' can describe a (non-permeable) lining used to waterproof floors, but in chemical engineering I believe membranes are always semi-permeable. Is it this build use that you mean? If so, then that's a good reason to have another article - one Building focused, the other Chem Eng focused. However, if you're talking about Chemical Engineering, I'd love some examples of impermeable membranes for my own education. Journeyman 01:17, 10 July 2006 (UTC)

Ok, you don't need a merge tag to just move information around. I'm removing the tags as they propose to turn 3 articles into one as they are worded. Also, yes, I'm talking applications other than chemical engineering. As such, this article should still exists, but proabably be expanded. pschemp | talk 02:58, 10 July 2006 (UTC)

Once the info was moved around, I was thinking of turning the semi-permeable membrane into a redirect to artificial membrane. My main issue here is that neither the artificial membrane nor the semi-permeable membrane articles discuss the non-chemical/non-biological uses of the terms. Therefore the semi-permeable membrane article can be turned into a redirect to artificial membrane, or a disambiguation to the cell and artificial membrane articles.

As the term artificial membrane is used in the field of membrane science and technology to discriminate between man-made and biological membranes, we need a separate article perhaps Membrane (construction) to cover the use you're talking about. Journeyman 02:11, 11 July 2006 (UTC)

That's probably going to be useful. Other uses of membrane are related to skin (see bat and drum), which have been given a piped link to skin (which is a semi-permeable membrane of sorts).--apers0n 05:46, 11 July 2006 (UTC)

2008 talk

I made some contribution to the artificial membrane page recently. I think from the chemical engineering prospective "synthetic membrane" term is little bit more applicable then "artificial membrane". Do you think it would be better to rename the "Artificial membrane" page and call it "Synthetic membrane" page? I did not want to create the new page in addition to the already existing one because the words are mutually synonymous in the context of "membrane". Alexdruz 11:32, 10 December 2008

state of this article (2012)

1. Is anyone watching or maintaining this article?

2. A quick skim shows this thing looking better in 2008 from Alexdruz's work. An attractive diagram showing different size ranges of exclusion and different types of membrane for one.

3. I think going over the article to bring back some of that old overall content and integrate with the current, very structure oriented discussion might be good. Alternatively, some of that content might make sense at Membrane.

4. I support a change to synthetic membrane (suggested in 2008) as much more common usage.

5. Regardless, want to get some summary of this article as a section in the Membrane article. but not sure if I should work on this one first!

(please reply with comments)

TCO (Reviews needed) 04:55, 10 January 2012 (UTC)

Minor Nomenclature Discrepancy

Under the synthetic polymer membrane section, the original author distinguished "polysulfone" from "polyethersulfone." I know how this sounds, but in the real world, "polysulfone" is used to refer to both types of polymers (which are, technically, distinct). I work as a production chemist preparing polymer solutions for casting thin film membranes and I routinely prepare DMF/polyethersulfone solutions using Solvay supplied polymers. Nonetheless, everyone in my industry calls it "polysulfone."98.171.160.204 (talk) 13:28, 22 October 2012 (UTC)