Navigation Links
Breakthrough could lead to cheaper, more sustainable chemical production
Date:3/21/2013

PROVIDENCE, R.I. [Brown University] A key advance, newly reported by chemists from Brown and Yale Universities, could lead to a cheaper and more sustainable way to make acrylate, an important commodity chemical used to make materials from polyester fabrics to diapers.

Chemical companies churn out billions of tons of acrylate each year, usually by heating propylene, a compound derived from crude oil. "What we're interested in is enhancing both the economics and the sustainability of how acrylate is made," said Wesley Bernskoetter, assistant professor of chemistry at Brown, who led the research. "Right now, everything that goes into making it is from relatively expensive, nonrenewable carbon sources."

Since the 1980s researchers have been looking into the possibility of making acrylate by combining carbon dioxide with a gas called ethylene in the presence of nickel and other metal catalysts. CO2 is essentially free and something the planet currently has in overabundance. Ethylene is cheaper than propylene and can be made from plant biomass.

There has been a persistent obstacle to the approach, however. Instead of forming the acrylate molecule, CO2 and ethylene tend to form a precursor molecule with a five-membered ring made of oxygen, nickel, and three carbon atoms. In order to finish the conversion to acrylate, that ring needs to be cracked open to allow the formation of a carbon-carbon double bond, a process called elimination.

That step had proved elusive. But the research by Bernskoetter and his colleagues, published in the journal Organometallics, shows that a class of chemicals called Lewis acids can easily break open that five-membered ring, allowing the molecule to eliminate and form acrylate.

Lewis acids are basically electron acceptors. In this case, the acid steals away electrons that make up the bond between nickel and oxygen in the ring. That weakens the bond and opens the rin
'/>"/>

Contact: Kevin Stacey
kevin_stacey@brown.edu
401-863-3766
Brown University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Nottingham technology in heart development breakthrough
2. Flu breakthrough: New drug developed to combat flu pandemic
3. Breakthrough study opens door to broader biomedical applications for Raman spectroscopy
4. Explosive breakthrough in research on molecular recognition
5. Stem cell breakthrough could lead to new bone repair therapies on nanoscale surfaces
6. A Spanish breakthrough allows the electroporation of cell cultures for less than 1 Euro
7. Recent breakthroughs in cocoa flavanol research discussed by European research consortium and expert panel
8. Breakthrough: How salt stops plant growth
9. Genetic sequencing breakthrough to aid treatment for congenital hyperinsulinism
10. Plant organ development breakthrough
11. USDA scientists and cooperators sequence the wheat genome in breakthrough for global food security
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/28/2014)... is now available from the Lady Bird Johnson Wildflower ... identifying harmful non-native plant, insect and other invasive species ... cause about $137 billion in economic and other damage ... native plants and more. , "By having streamlined tools ... species occur, we,re more likely to catch these threats ...
(Date:8/28/2014)... your neighbors than traditional cigarettes, but still release ... study from USC. , Scientists studying secondhand smoke ... exposure to harmful particles, with close-to-zero exposure to ... harmful metals in second-hand e-cigarette smoke were found ... contains high levels of polycyclic aromatic hydrocarbons ...
(Date:8/28/2014)... Ga. The support of peer groups and ... breastfeeding programs, according to recent University of Georgia ... in the Athens-Clarke County area determined that role ... outcomes of mothers of infants. , "Mothers who ... successful at breastfeeding," said study co-author Alex Anderson, ...
Breaking Biology News(10 mins):Mobile app makes ID of harmful plants, insects in Texas a snap 2Second-hand e-cig smoke compared to regular cigarette smoke 2Breastfeeding study shows need for effective peer counseling programs 2
... For clinicians, the ability to look routinely inside the body ... how it confronts disease is a distant dream. But in ... of researchers from the Howard Hughes Medical Institute (HHMI) at ... step toward realizing that vision by demonstrating the ability to ...
... insect forms—beetles, flies, dragonflies, mosquitoes, grasshoppers, ants, wasps, bees, ... all species known. The large number of insect species ... or more factors: a high rate of formation of ... new environments and exploit new ecological niches, and a ...
... No matter how healthy a life one leads, no person ... though the advances of the modern age may have extended ... genetic limits to longevity. One prominent theory of aging lays ... and proteins by “free radicals,?highly reactive molecules produced by the ...
Cached Biology News:Jefferson biologist coaxing human embryonic stem cells to make dopamine with simpler, faster method 2Jefferson biologist coaxing human embryonic stem cells to make dopamine with simpler, faster method 3Islands in the Genome Promote Speciation 2Navigating the brain for sense of direction as paradigm for higher cognitive functions 2
(Date:8/29/2014)... , Aug. 29, 2014 /PRNewswire/ - iCo Therapeutics ... today reported financial results for the six months ... are expressed in Canadian dollars and presented under ... Quarter 2014 Highlights , Announced top-line ... (VA) primary endpoint for subjects enrolled in the ...
(Date:8/29/2014)... 2014 Three Lawrence Livermore researchers ... Hydrogen Production R&D Award for their research ... using sunlight. , Shared with collaborators from the ... of Nevada, Las Vegas (UNLV), the award recognizes ... photoelectrochemical solar-hydrogen production and corrosion processes. , These ...
(Date:8/29/2014)... 2014 A major challenge before new ... dense realm of Boston-Cambridge, is gaining visibility that can ... Sherley, the Director of Boston’s Adult Stem Cell Technology ... national visibility of his company an important priority since ... addition to a social media marketing campaign ...
(Date:8/28/2014)... SAN DIEGO, California, USA (PRWEB) August 28, 2014 ... at the Department of Physics and Optical Science and ... at the University of North Carolina at Charlotte, and ... has been elected to serve as the 2015 Vice ... photonics. , SPIE 2014 President Philip Stahl announced recent ...
Breaking Biology Technology:iCo Therapeutics Announces Second Quarter 2014 Financial Results 2iCo Therapeutics Announces Second Quarter 2014 Financial Results 3iCo Therapeutics Announces Second Quarter 2014 Financial Results 4Livermore Team Awarded for Hydrogen Production Research 2The Adult Stem Cell Technology Center, LLC Participates in Multiple Stem Cell and Regenerative Medicine Conferences Before Year End 2The Adult Stem Cell Technology Center, LLC Participates in Multiple Stem Cell and Regenerative Medicine Conferences Before Year End 3The Adult Stem Cell Technology Center, LLC Participates in Multiple Stem Cell and Regenerative Medicine Conferences Before Year End 4Glenn Boreman, UNC Professor and Plasmonics Co-Founder, Elected to SPIE Presidential Chain 2
... ... specifically established to treat adolescents and adults and is today the largest of its kind ... , ... The Hertz Family Foundation of Santa Monica has announced that total contributions now exceed $2 ...
... , Opinion ... , WASHINGTON, Dec. 9 On Tuesday, December 8, 2009, ... The Decade-2 Education Forum in Washington, ... to America,s students and was sponsored by Amgen , a leading biotechnology ...
... Tenn., Dec. 9 Cumberland Pharmaceuticals Inc. (Nasdaq: ... agreement with DB Pharm Korea Co. Ltd. , a Korean-based ... in South Korea. Designed to treat pain and fever in the ... Administration and launched by Cumberland in the United States earlier this ...
Cached Biology Technology:Hertz Annual Appeal for Adult Congenital Heart Disease Center At UCLA Passes $2-Million Mark in Funds Raised Over Ten Years 2Hertz Annual Appeal for Adult Congenital Heart Disease Center At UCLA Passes $2-Million Mark in Funds Raised Over Ten Years 3Science Education Experts Discuss Solutions for Global Competitiveness at Scientific American Forum 2Science Education Experts Discuss Solutions for Global Competitiveness at Scientific American Forum 3Cumberland Pharmaceuticals Licenses Caldolor(R) (ibuprofen) Injection to DB Pharm Korea for Commercialization in South Korea 2Cumberland Pharmaceuticals Licenses Caldolor(R) (ibuprofen) Injection to DB Pharm Korea for Commercialization in South Korea 3Cumberland Pharmaceuticals Licenses Caldolor(R) (ibuprofen) Injection to DB Pharm Korea for Commercialization in South Korea 4
Automated Cell Culture Flask...
... high-throughput fluidics (HTF) system, 100-240 V, is ... array system that automates delivery of up ... the Bio-Plex array reader. The HTF system ... bulk sheath container to constantly maintain a ...
... laboratory, the revolutionary Luminex 100 System delivers ... in real time enhancing your operational efficiency. ... the Luminex 100, the XY Platform, and ... enables you to simultaneously assay up to ...
... This gradient system is ideal for routine binary ... highly sensitive Adept CE 4201 UV-Visible variable wavelength ... is provided by the two highly accurate ... CE 4100 solvent delivery pumps., Chromatograms may be ...
Biology Products: