Home > Press > Iranian Nano Scientists Promote Polystyrene Properties
Abstract:
Iranian researchers at Amirkabir University of Technology managed to synthesize polystyrene nanocomposite by atom transfer radical polymerization.
Iranian Nano Scientists Promote Polystyrene Properties
Tehran, Iran | Posted on July 5th, 2011
"The aim of this research was to promote the properties of home-made polystyrene by the least possible facilities, to use the new technologies and produce new grades with different applications", Hossein Roqani Mamaqani, PhD student at polymer engineering, Amirkabir University of Technology, said.
Elaborating on the results of the investigation, he said, "The linear kinetic diagram drawn by GC method indicates the viable nature of polymerization and constant concentration of free radical."
"Molecular weight distribution was wider in the case of nanocomposite sample and got broadened as the nanoparticles content increased. Bonded polymers have very low molecular weight and wider distribution compared to the similar unbounded ones. The scatter index narrowed with the reaction progress in all samples."
The study also revealed that addition of clay improves the thermal properties, decay temperature and mechanical features of the product as well as reducing GPPS polystyrene price. Thermal decay rate also decreases. Nanoparticles could be found useful in thermal expansion control in the case of swelling polystyrene.
"Considering the use of atom transfer radical polymerization, it is possible to achieve very high molecular weight uniform grades in this study. When the molecular weights of all chains are similar, there's a scatter index near 1 and a high uniformity would be gained at surface coatings. Since the chain tails are functionalized, it is convenient to study copolymerization," Roqani Mamaqani concluded.
####
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:
News and information
Nanoparticle Harnesses Powerful Radiation Therapy for Cancer May 20th, 2013
Microneedle-Delivered Nanoparticles Boost Antitumor Vaccines May 20th, 2013
Competition in the Quantum World May 20th, 2013
Elsevier Business Intelligence (EBI) to Host 'IN3 Medical Device 360 Boston,' June 24-26, 2013 May 20th, 2013
Materials
Kinks and curves at the nanoscale: New research shows 'perfect twin boundaries' are not so perfect May 20th, 2013
Advancements and developments of solid-state nanopores sensors May 16th, 2013
Physicists discover a new kind of friction: Friction in the nano-world May 16th, 2013
Squishy hydrogels may be the ticket for studying biological effects of nanoparticles May 15th, 2013
Announcements
Competition in the Quantum World May 20th, 2013
Elsevier Business Intelligence (EBI) to Host 'IN3 Medical Device 360 Boston,' June 24-26, 2013 May 20th, 2013
Penn engineers' nanoantennas improve infrared sensing May 20th, 2013
Researchers Perform Fastest Measurements Ever Made of Ion Channel Proteins May 20th, 2013