Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Turning vapors into foam-like polymer coatings

An initiated chemical vapor deposition (ICVD) system is used to convert a mixture of gases into foam polymer.

Credit: Photo by Adam Fenster/University of Rochester.
An initiated chemical vapor deposition (ICVD) system is used to convert a mixture of gases into foam polymer.

Credit: Photo by Adam Fenster/University of Rochester.

Abstract:
Polymers -- the essential component of plastics -- are found in countless commercial, medical, and industrial products. Polymers that are porous are called foam polymers and are especially useful because they combine light weight with rigid mechanical properties. Now a researcher at the University of Rochester has developed a process to grow highly customizable coatings of foam-like polymers.

Turning vapors into foam-like polymer coatings

Rochester, NY | Posted on October 11th, 2013

The process, developed by Mitchell Anthamatten, a chemical engineer at the University's Hajim School of Engineering and Applied Science, involves growing foam polymers directly from gases. His findings were published this week in the journal Macromolecular Rapid Communications.

"With this process we can grow polymer coatings in which the density and pore structure varies in space," said Anthamatten. "My hope is that the research leads to applications in a wide variety of fields, including medical, manufacturing, and high-tech research."

Anthamatten, working closely with graduate student Ran Tao, developed a system in which a mixture of gases is pumped into a low pressure reactor containing a cold surface to encourage condensation. One of the condensed liquids actually forms the polymer material (think of the solid part of a sponge), while the other one temporarily occupies the spaces that become the pores in the foam material (think of the hollow part of a sponge). But the problem is that the liquids in the film don't mix well -- very much like water and oil. What's required is to quickly solidify the polymer film, just as the two liquids begin to separate from one another. By controlling the solidification rate, they could control the size and distribution of the pores; the faster the coating is solidified, the smaller the pores become.

Anthamatten and Tao found the answer by adjusting the rate at which the gases were fed into the system, changing the temperature of the cold surface in the reactor, and using a chemical agent that helps solidify the coating. By adjusting all those factors, they were able to coat foam polymers with different densities, thicknesses, shapes, and hole-sizes.

"This process is highly customizable, meaning that we can make adjustments along the way, shaping the material's pore structure and density as it is grown," said Anthamatten. "As a result, it will be easier to put foam polymers in hard-to-get-at places, or even on curved surfaces."

Anthamatten has worked on the project since 2008 and has received support from the National Science Foundation.

Foam polymers are used in a variety of ways, including the delivery of drugs in the body, as a framework for body tissues and implants, and as layers in laser targets for fusion research.

####

For more information, please click here

Contacts:
Peter Iglinski
585-273-4726

Copyright © University of Rochester

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

U.S. Air Force Research Lab Taps IBM to Build Brain-Inspired AI Supercomputing System: Equal to 64 million neurons, new neurosynaptic supercomputing system will power complex AI tasks at unprecedented speed and energy efficiency June 23rd, 2017

Rice U. chemists create 3-D printed graphene foam June 22nd, 2017

Tiny bubbles provide tremendous propulsion in new microparticles research-Ben-Gurion U. June 21st, 2017

Enhanced photocatalytic activity by Cu2O nanoparticles integrated H2Ti3O7 nanotubes June 21st, 2017

Govt.-Legislation/Regulation/Funding/Policy

U.S. Air Force Research Lab Taps IBM to Build Brain-Inspired AI Supercomputing System: Equal to 64 million neurons, new neurosynaptic supercomputing system will power complex AI tasks at unprecedented speed and energy efficiency June 23rd, 2017

Rice U. chemists create 3-D printed graphene foam June 22nd, 2017

Tiny bubbles provide tremendous propulsion in new microparticles research-Ben-Gurion U. June 21st, 2017

Enhanced photocatalytic activity by Cu2O nanoparticles integrated H2Ti3O7 nanotubes June 21st, 2017

Nanomedicine

Researchers developed nanoparticle based contrast agent for dual modal imaging of cancer June 21st, 2017

Learning with light: New system allows optical “deep learning”: Neural networks could be implemented more quickly using new photonic technology June 12th, 2017

Mussels add muscle to biocompatible fibers: Rice University chemists develop hydrogel strings using compound found in sea creatures June 9th, 2017

Making vessels leaky on demand could aid drug delivery:Rice University scientists use magnets and nanoparticles to open, close gaps in blood vessels June 8th, 2017

Materials/Metamaterials

Rice U. chemists create 3-D printed graphene foam June 22nd, 2017

Alloying materials of different structures offers new tool for controlling properties June 19th, 2017

Smart materials used in ultrasound behave similar to water, Penn chemists report June 16th, 2017

Development of low-dimensional nanomaterials could revolutionize future technologies June 15th, 2017

Announcements

U.S. Air Force Research Lab Taps IBM to Build Brain-Inspired AI Supercomputing System: Equal to 64 million neurons, new neurosynaptic supercomputing system will power complex AI tasks at unprecedented speed and energy efficiency June 23rd, 2017

Rice U. chemists create 3-D printed graphene foam June 22nd, 2017

Tiny bubbles provide tremendous propulsion in new microparticles research-Ben-Gurion U. June 21st, 2017

Enhanced photocatalytic activity by Cu2O nanoparticles integrated H2Ti3O7 nanotubes June 21st, 2017

Tools

Researchers developed nanoparticle based contrast agent for dual modal imaging of cancer June 21st, 2017

Oxford Instruments congratulates Lancaster University for inaugurating the IsoLab, built for studying quantum systems June 20th, 2017

Changing the color of laser light on the femtosecond time scale: How BiCoO3 achieves second harmonic generation June 14th, 2017

Leti Announces Two New Tools for Improving Transportation Comfort, Safety and Efficiency: Wearable Device Measures Stress Responses for Travelers, Pilots and Truck Drivers, While Smartphone App Provides Transit Agencies Broad Data on Transport Modes June 13th, 2017

Energy

Tiny bubbles provide tremendous propulsion in new microparticles research-Ben-Gurion U. June 21st, 2017

Enhanced photocatalytic activity by Cu2O nanoparticles integrated H2Ti3O7 nanotubes June 21st, 2017

Cambridge Nanotherm partners with Inabata for global sales and distribution June 20th, 2017

Development of low-dimensional nanomaterials could revolutionize future technologies June 15th, 2017

Photonics/Optics/Lasers

Rice U. chemists create 3-D printed graphene foam June 22nd, 2017

New carbon nitride material coupled with ruthenium enhances visible-light CO2 reduction in water June 15th, 2017

Changing the color of laser light on the femtosecond time scale: How BiCoO3 achieves second harmonic generation June 14th, 2017

Learning with light: New system allows optical “deep learning”: Neural networks could be implemented more quickly using new photonic technology June 12th, 2017

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