Comments on: Polycarbonate (From greenhouse gas to eyeglass lens, CO2 does it all!) http://www.moleculeoftheday.com/2006/06/22/polycarbonate-from-greenhouse-gas-to-eyeglass-lens-co2-does-it-all/ Molecules: You'd Better Learn to Live With Them Sat, 05 Jul 2008 02:18:28 +0000 http://wordpress.org/?v=2.0.2 by: RG http://www.moleculeoftheday.com/2006/06/22/polycarbonate-from-greenhouse-gas-to-eyeglass-lens-co2-does-it-all/#comment-319 Thu, 29 Jun 2006 09:15:25 +0000 http://www.moleculeoftheday.com/2006/06/22/polycarbonate-from-greenhouse-gas-to-eyeglass-lens-co2-does-it-all/#comment-319 Will not the use of triphosgene lead to multiple links with Bisphenol giving rise to a "three-dimensional" network rather than a linear chain? Will such a crosslinked polymer be useful in applications where linear polymer fails - say heat resistance? Will not the use of triphosgene lead to multiple links with Bisphenol giving rise to a “three-dimensional” network rather than a linear chain? Will such a crosslinked polymer be useful in applications where linear polymer fails - say heat resistance?

]]> by: Naive Young Man http://www.moleculeoftheday.com/2006/06/22/polycarbonate-from-greenhouse-gas-to-eyeglass-lens-co2-does-it-all/#comment-291 Wed, 28 Jun 2006 04:20:21 +0000 http://www.moleculeoftheday.com/2006/06/22/polycarbonate-from-greenhouse-gas-to-eyeglass-lens-co2-does-it-all/#comment-291 I'd personally like to see a new method created for putting carbon dioxide into a solid form (even if it's chemically modified like this) - then we could take carbon dioxide from the atmosphere, chemically treat it into a solid form, and store it away in warehouses! No more greenhouse gases. And if we wanted to kill two birds with one stone...find a way to filter mercury out of water....and store it as mercury carbonate! I'm a genius! I’d personally like to see a new method created for putting carbon dioxide into a solid form (even if it’s chemically modified like this) - then we could take carbon dioxide from the atmosphere, chemically treat it into a solid form, and store it away in warehouses! No more greenhouse gases.

And if we wanted to kill two birds with one stone…find a way to filter mercury out of water….and store it as mercury carbonate!

I’m a genius!

]]> by: motd http://www.moleculeoftheday.com/2006/06/22/polycarbonate-from-greenhouse-gas-to-eyeglass-lens-co2-does-it-all/#comment-239 Fri, 23 Jun 2006 01:40:10 +0000 http://www.moleculeoftheday.com/2006/06/22/polycarbonate-from-greenhouse-gas-to-eyeglass-lens-co2-does-it-all/#comment-239 You are probably right, but I really don't know my process chemistry, and I went with the easiest-to-understand route. Wikipedia says phosgene, but I'm not putting any bets on a Wiki entry. For the uninitiated, here is triphosgene : <div style="text-align: center"><img src="/images/triphosgene.gif" /></div> It acts like three molecules of phosgene. The advantage is that it's not a gas. Still a violent poison, but you're less likely to breathe it in. There is also an analagous diphosgene (triphogene is a solid, diphosgene is a liquid, and phosgene is a gas). You are probably right, but I really don’t know my process chemistry, and I went with the easiest-to-understand route. Wikipedia says phosgene, but I’m not putting any bets on a Wiki entry. For the uninitiated, here is triphosgene :

It acts like three molecules of phosgene. The advantage is that it’s not a gas. Still a violent poison, but you’re less likely to breathe it in. There is also an analagous diphosgene (triphogene is a solid, diphosgene is a liquid, and phosgene is a gas).

]]> by: Reverend J http://www.moleculeoftheday.com/2006/06/22/polycarbonate-from-greenhouse-gas-to-eyeglass-lens-co2-does-it-all/#comment-238 Fri, 23 Jun 2006 01:34:52 +0000 http://www.moleculeoftheday.com/2006/06/22/polycarbonate-from-greenhouse-gas-to-eyeglass-lens-co2-does-it-all/#comment-238 Not to nitpick but wouldn't they more likely to use triphosgene in the case of polymer synthesis? It's a lot more stable, less toxic and solid, or was the original synthesis done with phosgene? Not to nitpick but wouldn’t they more likely to use triphosgene in the case of polymer synthesis? It’s a lot more stable, less toxic and solid, or was the original synthesis done with phosgene?

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