Symbolic representation of the chemical formula of the new polymer. Credit: Anatoliy A. Vereshchagin Moreover, it is safer in terms of potential fire hazards and has a lower environmental impact. It is difficult to imagine our daily life without lithium-ion batteries. They dominate the small format battery market for portable […]

Rice University engineers designed and built windowpanes that redirect sunlight or illumination from indoors to edge-band solar cells. The central layer is a conjugated polymer that serves as a waveguide. Credit: Yilin Li/Rice University Rice engineers develop polymer cores that redirect light from any source to solar cells. Rice University […]

Iron-catalyzed [2+2] oligomerization of butadiene produces (1,n’-divinyl)oligocyclobutane, a new polymer that can be chemically recycled. Credit: Figure by Jonathan Darmon of the Princeton University Department of Chemistry New polybutadiene molecule enchains in squares, a microstructure that enables it to depolymerize under certain conditions, advancing options for closed-loop recycling. As the […]

ENLARGE The fluorescence of radicals generated from tetraarylsuccinonitrile would enable visualization of the crystallization. Fluorescence microscopy observations of crystallization-induced mechanofluorescence allow the precise identification of the stress location and in-depth clarification of the polymer crystallization process. Credit: Tokyo Tech In modern times, manufacturers produce highly specialized materials for a wide […]

Lignocellulose biomass is cracked using acid to produce furfural. Using visible light and oxygen, furfural is converted into hydroxybutenolide, which is then modified using different alcohols to produce alkoxybutenolide monomers, that can be polymerized into coatings using UV light. Credit: George Hermens and Paco Visser, University of Groningen Organic chemists […]

ANIMATION Shifting Gears Toward Chemical Machines The gear is one of the oldest mechanical tools in human history1 and led to machines ranging from early irrigation systems and clocks, to modern engines and robotics. For the first time, researchers at the University of Pittsburgh Swanson School of Engineering have utilized a […]

Atta cephalotes (Leaf-cutter ants), Wilhelma Zoo, Stuttgart, Germany. Credit: Pjt56 / Wikimedia Commons CC BY-SA 4.0 Scientists at the Universities of Bath and Sussex have developed a new system that slowly releases ant pheromones to attract pests to an insecticide bait. This means that instead of spraying the whole crop […]

An artist’s illustration of the light-activated antenna-reactor catalyst Rice University engineers designed to break carbon-fluorine bonds in fluorocarbons. The aluminum portion of the particle (white and pink) captures energy from light (green), activating islands of palladium catalysts (red). In the inset, fluoromethane molecules (top) comprised of one carbon atom (black), […]

Chemical Recycling Makes Useful Product From Waste Bioplastic A faster, more efficient way of recycling plant-based “bioplastics” has been developed by a team of scientists at the Universities of Birmingham and Bath. The team has shown how their chemical recycling method not only speeds up the process, it can also […]