#polyethers

[biology-geology-beaches-india]

The Science Diaries of S. Sunkavally. Page 161.

[materialsscienceandengineering]

Solubility mystery of widely-used plastic solved

Polyether molecules tend to dissolve better in water as they contain more oxygen and fewer carbon atoms. But there are very counter-intuitive exceptions to this trend, the most well-known being the widely used plastic POM. It has the highest possible oxygen/carbon ratio but is completely insoluble. In the current issue of Nature Communications, researchers from the University of Amsterdam and the Max Planck Institute for Polymer Research in Mainz now put forth a definitive explanation.

The researchers in particular shed light on the solubility differences between the polyethers PEG (polyethylene glycol) and POM (polyoxymethylene) that are everywhere in our daily lives. PEG has many applications in aqueous solutions for pharmaceutical and cosmetic purposes, for instance in creams for shaving and skin-care. POM is a ubiquitous plastic material: many objects in daily life are made of POM, as are the brightly-colored Keck clips for connecting glassware, well-known to every chemist.

Although these two polyethers are much alike at the molecular level, they have very counterintuitive solubilities in water. PEG (repeating unit -CH2-CH2-O-) is perfectly soluble, and every chemistry student can tell you why: the oxygen atoms in PEG are slightly negatively charged, which makes them hydrophilic. This explanation seems to be confirmed by the comparable polymer PPG (polypropylene glycol, repeating unit-CH2-CH2-CH2-O-): it contains relatively fewer oxygen atoms than PEG, and is less soluble, which is perfectly logical.

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[randomjackstracks]

[aradheahaha]

Yo, I killed it on this remix and now i'm sharing it for free cause i love you. Polyethers 1st July Champion Records - DL Buy Polyethers inc. Jimmy edgar vocal mix: http://smarturl.it/polyethersitunes FB: https://www.facebook.com/pypage SC: https://soundcloud.com/pymusic "Brighton’s Jade Pybus – operating as Py - could almost be a female James Blake, and the dance-popper lets loose this hazy dream cut on Champion Records. The track gets a ridiculously good rework from dance royalty in the form of Jimmy Edgar – who puts a groovy spin on the original." - BLEEP

[viktorrin]

Polyethers 30th June Champion Records - DL Buy from iTunes: http://smarturl.it/polyethersitunes Buy from Beatport: http://smarturl.it/polyethersbeatport Buy from Juno Download: http://smarturl.it/polyethersjuno Buy from Bleep.com: http://smarturl.it/polyethersbleep Buy from Boomkat.com: http://smarturl.it/polyethersboomkat Buy from Amazon.com: http://smarturl.it/polyethersamazon Buy from Trackitdown: http://smarturl.it/polyethersTID ‘Py shows massive promise’ – Q Magazine After releasing her astounding mixtape ‘Tripping On Wisdom’ which featured collaborations with the likes of George Fitzgerald, Throwing Snow, Breton and Raffertie last year, Py returns with the long-awaited follow up, ‘Polyethers’, produced by Maths Time Joy and released via Champion Records on 30th June. A song about being so in tune with someone you love you ride the same emotional cycle together through romance and nostalgia via the testing times, ‘Polyethers’ marks the next natural musical step for Py. Showcasing her vocal depth and tone, ‘Polyethers’ is an epic love song, complete with soul-tinged harmonies; both emotionally grand and understated in all its bittersweet subtleties. Fresh from his groundbreaking Jamie Lidell remix, from Berlin based DJ/ Producer Jimmy Edgar (Warp/!k7/Hotflush) on the flip, Py has effortlessly managed to retain her contemporary electronic sound and clear artistic vision, rooted deep through ‘Tripping On Wisdom’, whilst simultaneously showcasing her impressively versatile, pop-spattered voice. Since completing a debut headline UK tour late last year as well as support for the likes of Fenech Soler on their the recent sold-out tour, Py has developed a full live show in the past few months. With support as diverse as Radio 1’s Rob Da Bank, Mixmag, Dazed & Confused, FACT and The Guardian and with further releases to drop on Champion, as well as forthcoming live dates and collaborations with Supreme Cuts through the latter half of 2013, Py is one artist set to stick around for a long time yet. Make sure you also watch out for her Red Bull Introducing session set to drop in late May. Live Dates 11th July - Electrowerkz supporting MAUSI, London 17th July - Mahogany Blog Live @ St. Pancras with Glitches, London 20 July – Farr Festival, Hertfordshire, UK http://www.pymusic.co.uk/ http://soundcloud.com/pymusic http://www.facebook.com/pypage http://twitter.com/Py_tweets Py logo and Artwork: Alex Menczykowski Picture: Stephanie Sian Smith Makeup: www.laureysimmons.com using Mac cosmetics. Styling: Elizabeth Black Hair: Keti Nikolova

[princess-daenerys]

[m15pf]

py // "polyethers (jimmy edgar remix)"

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