Chemistry Times
Recent News |  Archives |  Tags |  About |  Newsletter |  Submit News |  Links |  Subscribe to ChemistryTimes.com RSS Feed Subscribe


More Articles
Migrating birds sprint in spring, but take things easy in autumnMigrating birds sprint in spring, but take things easy in autumn

On the way to a safe and secure Smart HomeOn the way to a safe and secure Smart Home

Researchers discover new clues to determining the solar cycleResearchers discover new clues to determining the solar cycle

Enigmatic Viking fortress discovered in DenmarkEnigmatic Viking fortress discovered in Denmark

Buckyballs and diamondoids join forces in tiny electronic gadgetBuckyballs and diamondoids join forces in tiny electronic gadget

Evolutionary tools improve prospects for sustainable developmentEvolutionary tools improve prospects for sustainable development

Diverse neighborhoods may help infants' social learningDiverse neighborhoods may help infants' social learning

The ozone hole has stabilized -- some questions remainThe ozone hole has stabilized -- some questions remain

Missing piece found to help solve concussion puzzleMissing piece found to help solve concussion puzzle

Biochemists find new treatment options for staph infections, inflammatory diseasesBiochemists find new treatment options for staph infections, inflammatory diseases

Computer games give a boost to EnglishComputer games give a boost to English

In directing stem cells, study shows context mattersIn directing stem cells, study shows context matters

Researcher advances a new model for a cosmological enigma -- dark matterResearcher advances a new model for a cosmological enigma -- dark matter

Pesky insect inspires practical technologyPesky insect inspires practical technology

Mapping the DNA sequence of Ashkenazi JewsMapping the DNA sequence of Ashkenazi Jews

News media losing role as gatekeepers to new 'social mediators' on Twitter, study findsNews media losing role as gatekeepers to new 'social mediators' on Twitter, study finds

An 'anchor' that keeps proteins togetherAn 'anchor' that keeps proteins together

Biologists delay the aging process by 'remote control'Biologists delay the aging process by 'remote control'

Cicada study discovers 2 genomes that function as 1Cicada study discovers 2 genomes that function as 1

Milk prices top concern of Northeastern organic dairy farmersMilk prices top concern of Northeastern organic dairy farmers

Past temperature in Greenland adjustedPast temperature in Greenland adjusted

Stop and listen: Study shows how movement affects hearingStop and listen: Study shows how movement affects hearing

Bombarded by explosive waves of information, scientists review new ways to process and analyze Big DataBombarded by explosive waves of information, scientists review new ways to process and analyze Big Data

Program earns kudos for improving grades, retaining studentsProgram earns kudos for improving grades, retaining students

A self-organizing thousand-robot swarmA self-organizing thousand-robot swarm

Geography matters: Model predicts how local 'shocks' influence U.S. economyGeography matters: Model predicts how local 'shocks' influence U.S. economy

A healthy lifestyle adds years to lifeA healthy lifestyle adds years to life

Identified for the first time what kind of explosive has been used after the detonationIdentified for the first time what kind of explosive has been used after the detonation

Copied from nature: Detecting software errors via genetic algorithmsCopied from nature: Detecting software errors via genetic algorithms

'Terminator' polymer that regenerates itself (9/26/2013)

Tags:
elastomers, materials, metathesis, paper, plastic, polymer, polymers, reaction, research, self-healing
A cylindrical sample of the elastomer mends itself after being cut in two by a razor blade and can be manually stretched without rupture. -  IK4 CIDETEC, San Sebastian, Spain
A cylindrical sample of the elastomer mends itself after being cut in two by a razor blade and can be manually stretched without rupture. - IK4 CIDETEC, San Sebastian, Spain

Scientists in Spain have reported the first self-healing polymer that spontaneously and independently repairs itself without any intervention. The new material could be used to improve the security and lifetime of plastic parts in everyday products such as electrical components, cars and even houses.

The researchers have dubbed the material a 'Terminator' polymer in tribute to the shape-shifting, molten T-100 terminator robot from the Terminator 2 film.

The research is published in the Royal Society of Chemistry journal Materials Horizons.

Self-healing polymers that can spontaneously achieve quantitative healing in the absence of a catalyst have never been reported, until now. The scientists prepared the self-healing thermoset elastomers from common polymeric starting materials using a simple and inexpensive approach.

A video shows that the permanently cross-linked poly(urea-urethane) elastomeric network completely mends itself after being cut in two with a razor blade. A metathesis reaction of aromatic disulphides, which naturally exchange at room temperature, causes the regeneration.

The polymer behaves as a Velcro-like sealant or adhesive, displaying an impressive 97 per cent healing efficiency in just two hours. The researchers show that after cutting the material into two separate pieces with a razor blade and allowing it to self-heal, the material is unbreakable when stretched manually.

The authors said: "The fact that poly(urea-urethane)s with similar chemical composition and mechanical properties are already used in a wide range of commercial products makes this system very attractive for a fast and easy implementation in real industrial applications."

http://pubs.rsc.org/en/content/articlelanding/2013/mh/c3mh00061c.

The Royal Society of Chemistry is the world's leading chemistry community, advancing excellence in the chemical sciences. With over 48,000 members and a knowledge business that spans the globe, we are the UK's professional body for chemical scientists; a not-for-profit organisation with 170 years of history and an international vision of the future. We promote, support and celebrate chemistry. We work to shape the future of the chemical sciences - for the benefit of science and humanity. http://www.rsc.org

Scientists report the first self-healing thermoset elastomer that requires no intervention to induce its repair. Taken from the following paper: A Rekondo et al, Mater. Horiz., 2014, http://xlink.rsc.org/?doi=10.1039/c3mh00061c - IK4 CIDETEC, San Sebastian, Spain

Note: This story has been adapted from a news release issued by the Royal Society of Chemistry

Post Comments:

Search
New Articles
Computer simulations visualize ion fluxComputer simulations visualize ion flux

Single laser stops molecular tumbling motion instantly

Future solar panelsFuture solar panels

Hydrogen powers important nitrogen-transforming bacteriaHydrogen powers important nitrogen-transforming bacteria

Scientists pioneer strategy for creating new materials

Watching the structure of glass under pressureWatching the structure of glass under pressure

New filter technology -- uses inert gas to bore holes in high-quality steelNew filter technology -- uses inert gas to bore holes in high-quality steel

Getting graffiti off a masterpiece (video)Getting graffiti off a masterpiece (video)

Rubber meets the road with new ORNL carbon, battery technologiesRubber meets the road with new ORNL carbon, battery technologies

Experiments explain why some liquids are 'fragile' and others are 'strong'Experiments explain why some liquids are 'fragile' and others are 'strong'

Novel 'butterfly' molecule could build new sensors, photoenergy conversion devices

Breaking benzene

Leading scientists call for a stop to non-essential use of fluorochemicals

ACEs are high with space station colloidal researchACEs are high with space station colloidal research

Laser pulse turns glass into a metalLaser pulse turns glass into a metal



Archives
September 2014
August 2014
July 2014
June 2014
May 2014
April 2014
March 2014
February 2014
January 2014
December 2013
November 2013
October 2013
September 2013
August 2013
July 2013
June 2013
May 2013
April 2013
March 2013
February 2013
January 2013
December 2012
November 2012
October 2012
September 2012
August 2012
July 2012
June 2012
May 2012
April 2012
March 2012
February 2012
January 2012
December 2011
November 2011
October 2011
September 2011
August 2011
July 2011
June 2011
May 2011
April 2011
March 2011
February 2011
January 2011
December 2010
November 2010
October 2010
September 2010
August 2010
July 2010
June 2010
May 2010
April 2010
March 2010
February 2010
January 2010
December 2009
November 2009
October 2009
September 2009
August 2009
July 2009
June 2009
May 2009
April 2009
March 2009
February 2009
January 2009
December 2008
November 2008
October 2008
September 2008
August 2008
July 2008
June 2008
May 2008
April 2008
March 2008
February 2008
January 2008
December 2007
November 2007
October 2007
September 2007
August 2007


Science Friends
Agricultural Science
Astronomy News
Sports Tech
Biology News
Biomimicry Science
Cognitive Research
Tissue Engineering
Cancer Research
Cybernetics Research
Electonics Research
Forensics Report
Fossil News
Genetic Archaeology
Genetics News
Geology News
Microbiology Research
Nanotech News
Parenting News
Physics News


  Archives |  Submit News |  Advertise With Us |  Contact Us |  Links
Use of this site constitutes acceptance of our Terms of Service and Privacy Policy. All contents © 2000 - 2015 Web Doodle, LLC. All rights reserved.