Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

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

SEMATECH to Showcase Innovation and Advances in Manufacturing at SEMICON Japan 2014: SEMATECH experts will share the latest techniques, emerging trends and best practices in advanced manufacturing strategies and methodologies November 26th, 2014

Australian startup creates world’s first 100% cotton hydrophobic T-Shirts November 26th, 2014

The mysterious 'action at a distance' between liquid containers November 26th, 2014

'Giant' charge density disturbances discovered in nanomaterials: Juelich researchers amplify Friedel oscillations in thin metallic films November 26th, 2014

Discoveries

The mysterious 'action at a distance' between liquid containers November 26th, 2014

'Giant' charge density disturbances discovered in nanomaterials: Juelich researchers amplify Friedel oscillations in thin metallic films November 26th, 2014

Vegetable oil ingredient key to destroying gastric disease bacteria: In mice, therapeutic nanoparticles dampen H. pylori bacteria and inflammation that lead to ulcers and gastric cancer November 25th, 2014

Research yields material made of single-atom layers that snap together like Legos November 25th, 2014

Materials/Metamaterials

'Giant' charge density disturbances discovered in nanomaterials: Juelich researchers amplify Friedel oscillations in thin metallic films November 26th, 2014

Lawrence Livermore researchers develop efficient method to produce nanoporous metals November 25th, 2014

Research yields material made of single-atom layers that snap together like Legos November 25th, 2014

Aromatic food chemistry to the making of copper nanowires November 24th, 2014

Announcements

SEMATECH to Showcase Innovation and Advances in Manufacturing at SEMICON Japan 2014: SEMATECH experts will share the latest techniques, emerging trends and best practices in advanced manufacturing strategies and methodologies November 26th, 2014

Australian startup creates world’s first 100% cotton hydrophobic T-Shirts November 26th, 2014

The mysterious 'action at a distance' between liquid containers November 26th, 2014

'Giant' charge density disturbances discovered in nanomaterials: Juelich researchers amplify Friedel oscillations in thin metallic films November 26th, 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