Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

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

Iranian Experts Clean Uranium-Contaminated Water by Nano-Particles November 23rd, 2014

Novel Method Found for Connection of Metallic Alloys to Polymers November 23rd, 2014

New research project supports internationalisation in nano-research: Launch of new “Baltic Sea Network” November 22nd, 2014

3rd Iran-Proposed Nano Standard Approved by International Standard Organization November 22nd, 2014

Possible Futures

A novel method for identifying the body’s ‘noisiest’ networks November 19th, 2014

Researchers discern the shapes of high-order Brownian motions November 17th, 2014

VDMA Electronics Production Equipment: Growth track for 2014 and 2015 confirmed: Business climate survey shows robust industry sector November 14th, 2014

Open Materials Development Will Be Key for HP's Success in 3D Printing: HP can make a big splash in 3D printing, but it needs to shore up technology claims and avoid the temptation of the razor/razor blade business model in order to flourish November 11th, 2014

Academic/Education

SUNY Poly Student Awarded Fellowship with the U.S. Department of Energy's Postgraduate Research Program: Ph.D. Candidate Accepts Postmaster's Appointment To Conduct Research At Albany NanoTech Complex November 13th, 2014

SUNY Polytechnic Institute Hosts Massive Crowd of More Than 3,000 People Who Attended Community Day Activities Across New York State: CNSE’s ‘NANOvember’ kickoff event highlights New York State’s growing high-tech sector with open house events in Albany, Utica, and Rochester November 3rd, 2014

SUNY Polytechnic Institute Invites the Public to Attend its Popular Statewide 'NANOvember' Series of Outreach and Educational Events October 23rd, 2014

First Canada Excellence Research Chair gets $10 million from the federal government for oilsands research at the University of Calgary: Federal government announces prestigious research chair to study improving oil production efficiency October 19th, 2014

Sensors

Canatu Launches CNB In-Mold Film for Transparent Touch on 3D Surfaces –in Cars, Household Appliances, Wearables, Portables November 20th, 2014

UO-industry collaboration points to improved nanomaterials: University of Oregon microscope puts spotlight on the surface structure of quantum dots for designing new solar devices November 20th, 2014

Spiraling light, nanoparticles and insights into life’s structure November 19th, 2014

New materials for more powerful solar cells: Major breakthrough in solar energy November 11th, 2014

Announcements

Iranian Experts Clean Uranium-Contaminated Water by Nano-Particles November 23rd, 2014

Novel Method Found for Connection of Metallic Alloys to Polymers November 23rd, 2014

New research project supports internationalisation in nano-research: Launch of new “Baltic Sea Network” November 22nd, 2014

3rd Iran-Proposed Nano Standard Approved by International Standard Organization November 22nd, 2014

Food/Agriculture/Supplements

Production of Biodegradable Nanocomposites of Wheat Gluten in Iran November 6th, 2014

New tool could help reshape the limits of synthetic biology: The 'telomerator' reshapes synthetic yeast chromosome into more flexible, realistic form, redefining what geneticists can build November 3rd, 2014

Nanoparticles Display Ability to Improve Efficiency of Filters October 28th, 2014

Smallest world record has 'endless possibilities' for bio-nanotechnology October 8th, 2014

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







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE