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Carnegie Mellon scientists use 'green' approach to transform plastics manufacturing

antly lowering removal costs, according to the authors.

The new ATRP technique also allows for production of higher molecular weight chains, thereby extending the range of accessible materials that could be made using this method. For example, chemists could grow high molecular weight polymers with precise control, providing even larger templates for nanoscale carbon structures used in computer screen field emission displays and semi-conductors that regulate the flow of electricity in sensors, some only a fraction of the width of a hair.

ATRP differs significantly from conventional polymer manufacturing methods. This "living," synthetic process can be shut down or restarted at will, depending on how the temperature and other conditions of the reaction are varied. ATRP is an exceptionally robust way to uniformly and precisely control the chemical composition and architecture of polymers as well as the growth of every polymer chain, all while employing a broad range of monomers.

Much of the research progress and commercial success related to ATRP is due to two research consortia Matyjaszewski has initiated and led. These successful consortia have allowed many companies to incorporate ATRP methodologies into the development of new products for their specific markets. Companies from around the world send their employees to train in Matyjaszewski's laboratory. For more information, visit www.chem.cmu.edu/groups/maty/center/.


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Source:Carnegie Mellon University


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