I D
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chementator Briefs
Ultrathin membrane Researchers led by professors Hideto Matsuyama and Tomohisa…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEEQUIPMENT & SERVICESFOCUS
Focus on Sensors
Wireless transmitters save on level sensor installation Reduce the cost…
NEW PRODUCTS + Show More SHOW PREVIEWS

Comment

Janus cube: A new, economical way to synthesize ‘two-faced’ organosilicons

By Tetsuo Satoh |

Professor Masafumi Unno and colleagues at Gunma University (Kiryu City, Japan; element.chem-bio.st.gunma-u.ac.jp) have developed a simple method for the synthesis of “Janus cubes,” which are nano-sized organosilicons with two different substituents (diagram). These nanoparticles — named after the two-faced Roman god — are useful raw materials with a unique structure used in the creation of high-performance silicon and silicone materials, but an economical process for making them has eluded researchers until now. The Gunma chemists synthesized and characterized a “perfect” Janus cube, octasilsesquioxane, which is an organosilane containing fluorine. It was made by a novel siloxane bond-forming reaction involving coupling a silanol salt and fluorosilane: the cross-coupling of sodium cyclosiloxanolate and cyclic fluorosiloxane “half-cubes.” The reaction is performed under mild conditions, does not generate any byproducts and is expected to be applicable for making organic-inorganic hybrid materials, the researchers say. The achievement is part of a project that is being led by Kazuhiko Satoh at the National Institute of Advanced Industrial Science and Technology (AIST; Tsukuba; www.aist.go.jp) with support from the…
Related Content
A direct route to adipic acid esters
Adipate diesters are building blocks of polyamides and polyesters, and are used in plasticizers, perfumes, lubricants, solvents, various pharmaceutical active…

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
Improving chemical production processes with IIoT and AI technologies
New filtration technology for highly corrosive media
PTA production: Lowering OPEX without compromising on quality
Sure that zero means zero in your zero-liquid discharge (ZLD) process?
How separation processes profit from Industrial Internet of Things (IIoT) solutions

View More

Live chat by BoldChat