Featured Research

from universities, journals, and other organizations

Virginia Tech Studies Reveal Reaction Pathways For Ozone On Organic Surfaces

Date:
April 1, 2006
Source:
Virginia Tech
Summary:
Virginia Tech chemistry researchers have made a discovery about how ozone degrades organic surfaces such as biological surfactants and polymeric coatings.

Virginia Tech chemistry researchers have made a discovery about how ozone degrades organic surfaces such as biological surfactants and polymeric coatings.

Related Articles


The research will be presented at the 231st American Chemical Society (ACS) national meeting being held in Atlanta on March 26-30.

John Morris' group is studying the reactions of small molecules found in pollution of surfaces. Morris, associate professor of chemistry in the College of Science, and his students are looking specifically at hydrochloric acid (HCl) and triatomic oxygen (O3, a toxic form of oxygen), pollutants known to play a major role in atmosphere chemistry. They are using functionalized self-assembled monolayers (thin films -- one molecule thick) to simulate organic surfaces. "It gives us control of the surface structure and chemical functionality so we can study how those aspects of a surface influence the fate of important gas-surface collisions," Morris said.

The experiments have led to a detailed understanding of the reaction mechanisms of HC1 and ozone on organic surfaces, which is what Morris will present in the paper authored by graduate student Larry R. Fiegland, Morris, and graduate student B. Scott Day.

A major finding is that ozone reacts with carbon-carbon double bonds to form crosslinked networks within the thin film. Carbon-carbon double bonds are the very strong forces that link carbon atoms together to help form long-chain molecules -- major components of many polymeric materials found in everyday life. "The formation of crosslinked networks is a new discovery -- that provides a fundamental understanding of how, on the molecular level, organic surfaces degrade with prolonged exposure to ozone, a major atmospheric pollutant," Morris said. "Understanding the reaction mechanism may someday lead to more robust films for organic coatings, or polymeric coatings, such as paints."

The paper, "Reaction dynamics of HCl and O3 in collisions with omega-functionalized self-assembled monolayers" (COLL 515), will be presented at 3:30 p.m. at the OMNI at CNN Center International Ballroom F as part of the Division of Colloid and Surface Chemistry symposium honoring ACS Adamson Award Winner Steven Bernasek.

Morris' National Science Foundation Career Award funds the research.


Story Source:

The above story is based on materials provided by Virginia Tech. Note: Materials may be edited for content and length.


Cite This Page:

Virginia Tech. "Virginia Tech Studies Reveal Reaction Pathways For Ozone On Organic Surfaces." ScienceDaily. ScienceDaily, 1 April 2006. <www.sciencedaily.com/releases/2006/04/060401111700.htm>.
Virginia Tech. (2006, April 1). Virginia Tech Studies Reveal Reaction Pathways For Ozone On Organic Surfaces. ScienceDaily. Retrieved October 23, 2014 from www.sciencedaily.com/releases/2006/04/060401111700.htm
Virginia Tech. "Virginia Tech Studies Reveal Reaction Pathways For Ozone On Organic Surfaces." ScienceDaily. www.sciencedaily.com/releases/2006/04/060401111700.htm (accessed October 23, 2014).

Share This



More Matter & Energy News

Thursday, October 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

3D Printed Instruments Make Sweet Music in Sweden

3D Printed Instruments Make Sweet Music in Sweden

Reuters - Innovations Video Online (Oct. 23, 2014) Students from Lund University's Malmo Academy of Music are believed to be the world's first band to all use 3D printed instruments. The guitar, bass guitar, keyboard and drums were built by Olaf Diegel, professor of product development, who says 3D printing allows musicians to design an instrument to their exact specifications. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Chameleon Camouflage to Give Tanks Cloaking Capabilities

Chameleon Camouflage to Give Tanks Cloaking Capabilities

Reuters - Innovations Video Online (Oct. 22, 2014) Inspired by the way a chameleon changes its colour to disguise itself; scientists in Poland want to replace traditional camouflage paint with thousands of electrochromic plates that will continuously change colour to blend with its surroundings. The first PL-01 concept tank prototype will be tested within a few years, with scientists predicting that a similar technology could even be woven into the fabric of a soldiers' clothing making them virtually invisible to the naked eye. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Jet Sales Lift Boeing Profit 18 Pct.

Jet Sales Lift Boeing Profit 18 Pct.

Reuters - Business Video Online (Oct. 22, 2014) Strong jet demand has pushed Boeing to raise its profit forecast for the third time, but analysts were disappointed by its small cash flow. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
Internet of Things Aims to Smarten Your Life

Internet of Things Aims to Smarten Your Life

AP (Oct. 22, 2014) As more and more Bluetooth-enabled devices are reaching consumers, developers are busy connecting them together as part of the Internet of Things. (Oct. 22) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins