Articles > Government magazines > Applied and Social Sciences magazines > Science News articles > August 1994

Article: Polymers grafted by interlocking strands. (new method for grafting polymers discovered) (Brief Article)

Article from:
Science News
Article date:
August 20, 1994
Author:
Copyright

They run along the edges of outdoor gear, the tops of sneakers, the borders of bags. These fasteners -- Velcro being the best-known brand -- have two strips: one bristly and one fuzzy. Pressed together, they stick, as tiny hooks on the rough side grasp the soft side's looping threads.

Designed properly, polymers can join in the same way: Their surfaces can bear the molecular equivalents of hooks and threads.

Dilip Gersappe, a materials scientist at the University of Pittsburgh, and his colleagues describe a new method for grafting polymers with interlaced strands. A report on what they call "molecular Velcro" appears in the Aug. 19 SCIENCE.

"At ...

Read all of this article with a FREE trial

Related newspaper, magazine, and journal articles:

Article: Simulation Sciences develops new method for ...
Business Wire;  March 30, 1995 ;     700+ words ... ... Thursday disclosed the development of a new method for predicting octane numbers in gasoline ... composition dependencies. "SIMSCI's new method is valuable because it provides refiners ... valuable high-octane feedstock. The new method not only predicts octane numbers more ...

Article: NEW METHOD OF PREDICTING CLEAR AIR TURBULENCE COULD ...
US Fed News Service, Including US State News;  October 1, 2008 ;     700+ words ... ... unremarkable flight into a nightmare. "Our new method allows superior forecasts for CAT beyond ... feet above the Earth's surface. This new method gives pilots a way to avoid turbulence ... University of Reading in Great Britain. The new method predicts energy associated with gravity ...

Article: NEW METHOD CUTS WASTE IN MAKING MOST EFFICIENT ...
US Fed News Service, Including US State News;  September 15, 2008 ;     700+ words ... ... type of solar power cells. They say the new method should lower the cost of such cells by ... are roughly 100 times stronger. The new method for slicing solar cell wafers - known ... Sylarus is considering using the new method, but must determine if it can be scaled ...

Article: A new method to estimate diffusion in stable, ...
Journal of Applied Meteorology;  February 1, 2001 ;     700+ words ... ... wind conditions. The results with the new method for these experiments are very promising ... function of wind speed, was derived. The new method was tested against field data taken by ... concentrations and those computed with the new method. Although the new method ...

Article: New method yields local strawberries until ...
M2 Presswire;  December 14, 2005 ;     664 words ... ... PRESSWIRE-14 December 2005-US ARS: New method yields local strawberries until Christmas ... Service (ARS) scientist developed a new method for propagating June-bearing strawberry ... flower and bear fruit only in spring. The new method of double cropping June-bearing strawberries ...

Article: New Method Looks at Cancer Survival
AP Online;  October 10, 2002 ;     664 words ... ... Institute database. He found that the new method estimates American breast cancer patients ... after diagnosis was 55 percent with the new method, compared with 49 percent previously ... Sweden, who is a proponent of the new method but was not connected with the latest ...

Article: A New Method to Test the Effectiveness of Sunscreen ...
Photochemistry and Photobiology;  November 1, 2006 ;     700+ words ... ... cell systems. This paper presents a new method to quantify the effectiveness of sunscreens ... studied three UV-B sunscreens by this new method and compared their extinction coefficients ... solvent to the value obtained by this new method Is 13-1.8 Instead of 1. This difference ...

Article: A new method for evaluating the surface roughness ...
Construction and Building Materials;  April 1, 2000 ;     700+ words ... ... no method is accepted as standard. A new method of quantifying surface roughness is proposed ... reported in the literature. In this new method (referred to as the roughness gradient method) a new method of describing the surface roughness is ...

 
 
Newsweek Harper's Magazine The Washington Post Chicago Tribune Crain's Chicago Business PRNewswire Pediatric News The Nation Advertising Age The Economist (US) A FREE trial gives you access to over 80 million articles! Access over 6,500 publications with a FREE trial!

Find articles, research, and archives