Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > New Method Found for Synthesizing Polymeric Nano-Membranes

Abstract:
Iranian researchers at Kashan University managed to synthesize a nano-membrane with diverse pores through photo-polymerization process.

New Method Found for Synthesizing Polymeric Nano-Membranes

Tehran, Iran | Posted on September 5th, 2011

"The main reason for using new membranes having properties intermediate to those of reverse osmosis and ultrafiltration is to separate monovalent and divalent salts as well as non-ionic solutes with molecular weights less than 2000 g/mol. The synthesis of nano-membrane using photo-polymerization process is investigated in this research", Dr. Ahmad Akbari, faculty member at Kashan University, said.

Pointing to the advantages of nano-membranes, he said, "Ability of ion separation from solutions at fairly low pressures is one of the unique features of nano-membranes, which is a result of having ionic charges on their surface. Even if their pores are greater than ionic radius, the solution ions are highly captured."

Elaborating on the synthesis procedure, Dr. Akbari said, "Casting solution was prepared by solving a definite amount of polysulfone in 1-methyl 2-pyrolidon. Then poly ethylene glycol was added as filler and additive and a polymeric film was produced. In order to convert the initial ultrafiltration membranes to nano-membrane, photo-polymerization process was practiced by means of UV radiation."

The results include reduction of membrane permeability by increasing the concentration of monomer (acrylic acid) in the solution during UV radiation.

Lengthening the UV radiation period in photo-polymerization will increase polymer concentration at membrane surface and will decrease membrane permeability.

####

For more information, please click here

Copyright © Fars News Agency

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

Northwestern researchers achieve unprecedented control of polymer grids: Materials could find applications in water purification, solar energy storage, body armor June 22nd, 2018

Nanobiotix Publishes Positive Phase 2/3 Data For Nanomedicine in Soft Tissue Cancer (Webcast June 22) June 22nd, 2018

Alzheimer's breakthrough: Brain metals that may drive disease progression revealed: In brains affected by Alzheimer's, researchers identify chemically reduced iron species, with mineral forms including a magnetic iron oxide June 22nd, 2018

Collaboration yields discovery of 12-sided silica cages June 20th, 2018

Discoveries

Alzheimer's breakthrough: Brain metals that may drive disease progression revealed: In brains affected by Alzheimer's, researchers identify chemically reduced iron species, with mineral forms including a magnetic iron oxide June 22nd, 2018

Collaboration yields discovery of 12-sided silica cages June 20th, 2018

Carbon nanotube optics poised to provide pathway to optical-based quantum cryptography and quantum computing: Researchers are exploring enhanced potential of carbon nanotubes for unique applications June 18th, 2018

Camouflaged nanoparticles used to deliver killer protein to cancer June 17th, 2018

Materials/Metamaterials

Northwestern researchers achieve unprecedented control of polymer grids: Materials could find applications in water purification, solar energy storage, body armor June 22nd, 2018

Making quantum puddles: Physicists discover how to create the thinnest liquid films ever June 13th, 2018

Nickel ferrite promotes capacity and cycle stability of lithium-sulfur battery June 13th, 2018

Evidence for a new property of quantum matter revealed: Electrical dipole activity detected in a quantum material unlike any other tested June 11th, 2018

Announcements

Northwestern researchers achieve unprecedented control of polymer grids: Materials could find applications in water purification, solar energy storage, body armor June 22nd, 2018

Nanobiotix Publishes Positive Phase 2/3 Data For Nanomedicine in Soft Tissue Cancer (Webcast June 22) June 22nd, 2018

Alzheimer's breakthrough: Brain metals that may drive disease progression revealed: In brains affected by Alzheimer's, researchers identify chemically reduced iron species, with mineral forms including a magnetic iron oxide June 22nd, 2018

Collaboration yields discovery of 12-sided silica cages June 20th, 2018

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



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project