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Latest Poly Stories

2012-04-24 22:44:28

Findings may offer clues to superior performance and guide synthesis of materials with improved properties Detailed studies of one of the best-performing organic photovoltaic materials reveal an unusual bilayer lamellar structure that may help explain the material's superior performance at converting sunlight to electricity and guide the synthesis of new materials with even better properties. The research, published in Nature Communications April 24, 2012, was conducted by scientists at...

Stable Electrodes For Improving Printed Electronics
2012-04-23 03:33:07

Method could pave way for lower cost, more flexible devices Imagine owning a television with the thickness and weight of a sheet of paper. It will be possible, someday, thanks to the growing industry of printed electronics. The process, which allows manufacturers to literally print or roll materials onto surfaces to produce an electronically functional device, is already used in organic solar cells and organic light-emitting diodes (OLEDs) that form the displays of cellphones. Although...

Process Makes Polymers Truly Plastic
2012-03-16 03:21:58

Just as a chameleon changes its color to blend in with its environment, Duke University engineers have demonstrated for the first time that they can alter the texture of plastics on demand, for example, switching back and forth between a rough surface and a smooth one. By applying specific voltages, the team has also shown that it can achieve this control over large and curved surface areas. "By changing the voltage applied to the polymer, we can alter the surface from bumpy to smooth...

2012-03-10 09:00:00

Manufacturers of synthetic fiber have struggled for about a decade, and the next five years will be no better. As more textile mills move overseas to take advantage of lower operating costs, they will purchase less fiber from US fiber producers. Inexpensive imports from countries like China will also pose a significant threat to domestic manufacturers' market shares, while constantly rising raw material prices will eat away at operators' profit margins. For these reasons, industry research...

Smart, Self-healing Hydrogels Have Possibilities In Medicine, Engineering
2012-03-06 04:22:48

[ Watch the Video ] University of California, San Diego bioengineers have developed a self-healing hydrogel that binds in seconds, as easily as Velcro, and forms a bond strong enough to withstand repeated stretching. The material has numerous potential applications, including medical sutures, targeted drug delivery, industrial sealants and self-healing plastics, a team of UC San Diego Jacobs School of Engineering researchers reported March 5 in the online Early Edition of the Proceedings...

2012-03-05 10:55:30

Squeezing polymers produces chemical energy but raises doubts about implant safety A polymer is a mesh of chains, which slowly break over time due to the pressure from ordinary wear and tear. When a polymer is squeezed, the pressure breaks chemical bonds and produces free radicals: ions with unpaired electrons, full of untapped energy. These molecules are responsible for aging, DNA damage and cancer in the human body. In a new study, Northwestern University scientists turned to squeezed...


Word of the Day
mallemaroking
  • Nautical, the visiting and carousing of sailors in the Greenland ships.
This word is apparently from a confusion of two similar Dutch words: 'mallemerok,' a foolish woman, and 'mallemok,' a name for some persons among the crew of a whaling vessel.