Nanotechnology Now

Our NanoNews Digest Sponsors


Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Team develops functionally graded shape memory polymers

Abstract:
A team led by Patrick T. Mather, director of Syracuse Biomaterials Institute (SBI) and Milton and Ann Stevenson professor of biomedical and chemical engineering in Syracuse University's L.C. Smith College of Engineering and Computer Science (LCS), has succeeded in applying the concept of functionally graded materials (FGMs) to shape memory polymers (SMPs).

By Ariel DuChene

Team develops functionally graded shape memory polymers

Syracuse, NY | Posted on January 7th, 2011

SMPs are a class of "smart" materials that can switch between two shapes, from a fixed (temporary) shape to a predetermined permanent shape. Shape memory polymers function as actuators, by first forming a heated article into a temporary shape and cooling. Then, by using a second stimulus (i.e. heat), the article can spring back to its original shape.

To date, SMPs have been limited to two-way and three-way shape configurations. Mather has successfully built a process where sections of one shape memory polymer independently react to different temperature stimuli. This work has been highlighted on the cover of the January 2011 issue of Soft Matter, the leading journal in the field of soft matter research.

Functionally graded materials are defined as synthetic materials where the composition, microstructure and other properties differ along sections of the material. The goal of Mather's research was to apply this theory to SMPs and create a material that could be fixed and recovered in one section without impacting the response of the other sections.

Mather created a temperature gradient plate by applying heat at one end and using a cooling unit at the other end. The actual temperature gradient was verified by measuring different positions along the plate. The SMP was cured on this plate to set the different transition temperatures.

Mather first tested the graded SMP by using micro-indention on the surface and then heating the polymer. When heated, each indentation recovered to the original smooth surface as each one's transition temperature was reached along the surface.

The second test involved cutting the SMP and bending back the cut sections. This SMP was placed on a Pelletier plate that uniformly heated the material. It was observed that as the plate warmed, each "finger" of the cut sheet independently recovered back to its unbent shape as the temperature of the plate reached its transition temperature.

"We are very excited about this new approach to preparing shape memory polymers, which should enable new devices with complex mechanical articulations," says Mather. "The project demonstrated how enthusiastic and persistent undergraduate researchers could contribute substantively, even in the throes of their busy course schedules."

There are numerous applications opportunities for Mather's functionally graded SMPs, from low-cost temperature labels that could measure temperatures in areas that are not accessible by conventional methods or not amenable to continuous monitoring, to indirectly indicate sterilization completions, or for incorporation into product packaging (for shipping industry or food storage) to indicate the maximum temperature for a product exposure.

The LCS team of researchers led by Mather included graduate student Xiaofan Luo and undergraduate student Andrew DiOrio.

####

For more information, please click here

Contacts:
Ariel DuChene
(315) 443-2546

Copyright © Syracuse University

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Radiation-guided nanoparticles zero in on metastatic cancer July 1st, 2016

Synthesized microporous 3-D graphene-like carbons: IBS research team create carbon synthesis using zeolites as a template July 1st, 2016

No need in supercomputers: Russian scientists suggest a PC to solve complex problems tens of times faster than with massive supercomputers June 30th, 2016

Surprising qualities of insulator ring surfaces: Surface phenomena in ring-shaped topological insulators are just as controllable as those in spheres made of the same material June 30th, 2016

Possible Futures

Radiation-guided nanoparticles zero in on metastatic cancer July 1st, 2016

A drop of water as a model for the interplay of adhesion and stiction June 30th, 2016

No need in supercomputers: Russian scientists suggest a PC to solve complex problems tens of times faster than with massive supercomputers June 30th, 2016

Surprising qualities of insulator ring surfaces: Surface phenomena in ring-shaped topological insulators are just as controllable as those in spheres made of the same material June 30th, 2016

Academic/Education

JPK’s NanoWizard® AFM and ForceRobot® systems are being used in the field of medical diagnostics in the Supersensitive Molecular Layer Laboratory of POSTECH in Korea June 21st, 2016

Weizmann Institute of Science Presents: Weizmann Wonder Wander - 4G - is Online June 21st, 2016

NanoLabNL boosts quality of research facilities as Dutch Toekomstfonds invests firmly June 10th, 2016

The Institute for Transfusion Medicine at the University Hospital of Duisburg-Essen in Germany uses the ZetaView from Particle Metrix to quantify extracellular vesicles June 7th, 2016

Sensors

Researchers discover new chemical sensing technique: Technique allows sharper detail -- and more information -- with near infrared light June 24th, 2016

Artificial synapse rivals biological ones in energy consumption June 21st, 2016

A new form of hybrid photodetectors with quantum dots and graphene June 19th, 2016

Drum beats from a one atom thick graphite membrane June 15th, 2016

Announcements

Radiation-guided nanoparticles zero in on metastatic cancer July 1st, 2016

Synthesized microporous 3-D graphene-like carbons: IBS research team create carbon synthesis using zeolites as a template July 1st, 2016

No need in supercomputers: Russian scientists suggest a PC to solve complex problems tens of times faster than with massive supercomputers June 30th, 2016

Surprising qualities of insulator ring surfaces: Surface phenomena in ring-shaped topological insulators are just as controllable as those in spheres made of the same material June 30th, 2016

Food/Agriculture/Supplements

The use of nanoparticles and bioremediation to decontaminate polluted soils June 14th, 2016

VentureLab nanotechnology startup wins TechConnect Innovation Award June 2nd, 2016

Common nanoparticle has subtle effects on oxidative stress genes May 11th, 2016

Nanoparticles present sustainable way to grow food crops May 1st, 2016

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







Car Brands
Buy website traffic