Popular Polystyrene News and Current Events

Popular Polystyrene News and Current Events, Polystyrene News Articles.
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Electrical enhancement: Engineers speed up electrons in semiconductors
Researchers from Graduate School of Bio-Applications and Systems Engineering at Tokyo University of Agriculture and Technology (TUAT) have sped up the movement of electrons in organic semiconductor films by two to three orders of magnitude. The speedier electronics could lead to improved solar power and transistor use across the world, according to the scientists. (2018-10-17)

New Pd-based initiating systems for C1 polymerization of diazoacetates
Two new Pd-based initiating systems for C1 polymerization of diazoacetates were reported: Pd(nq)2/borate (nq = naphthoquinone, borate = NaBPh4) and [Pd(cod)(Cl-nq)Cl/borate] [cod = 1,5-cyclooctadiene, Cl-nq = 2,3-dichloro-1,4-naphthoquinone]. The former exhibited high activity, affording poly(alkoxycarbonylmethylene)s with high molecular weights in high yields. The latter was effective for controlling the stereostructure of the resulting polymers. (2019-10-23)

Degrading plastics revealed as source of greenhouse gases
Researchers from the University of Hawai'i at Mānoa School of Ocean and Earth Science and Technology (SOEST) discovered that several greenhouse gases are emitted as common plastics degrade in the environment. (2018-08-01)

Plastic fantastic -- researchers turn plastic pollution into cleaners
Scientists at the University of Bristol have discovered a way to re-use a common plastic to break down harmful dyes in our waste water. (2018-03-14)

Estimating the glass transition temperature for polymers in 'confined geometries'
Polystyrene has a glass transition temperature of about 100 C -- at room temperature it behaves like a solid material. But as its temperature approaches the glass transition temperature, polystyrene's mechanical properties change drastically. This makes the ability to approximate glass transitions for confined geometries in polymers highly desirable. And now, as researchers report in this week's issue of The Journal of Chemical Physics, they've developed a simple formula to do just that. (2017-03-21)

Sunscreen for dancing molecules
This study is the first to use heavy water (D2O) - a form of water that contains deuterium (D) instead of hydrogen - in the field of transmission electron microscopy (TEM). This approach significantly delays sample damage, which is one of the major impediments for broader application of liquid-phase TEM to fragile biological samples. (2018-08-01)

NUST MISIS scientists manage to observe the inner structure of photonic crystals
Photonic crystals are perfect materials for controlling light beams. The crystals almost managed to become the basis for the production of optical processors several years ago, if not for one highly ranked official saying 'no'. Similar to many other materials whose properties strongly depend on their structure, photonic crystals have an issue of reproducibility. To put it more exactly, no one has yet managed to create two large and completely similar photonic crystals. (2018-01-09)

The impact of microplastics on the environment unclear, study suggests
A review of more than 300 global studies has revealed a large 'mismatch' in the types of microplastics measured in the environment to those tested for effects in the laboratory. (2018-10-17)

Scientists find way to make mineral which can remove CO2 from atmosphere
Scientists have developed an accelerated way to produce magnesite at room temperature, a mineral which can capture the greenhouse gas CO2 from the atmosphere. Removing CO2 from the atmosphere will slow global warming. This work takes a different approach to existing processes, and may make it economically viable, but it is at an early stage, and is not yet an industrial process. (2018-08-14)

Crepidula onyx resilient towards microplastic diet
A group of scientists at the Chan Lab of the Division of Life Science, HKUST, uses Crepdiula onyx as a model organism to test microplastics immunity, and found that they will threaten other marine organisms that are less resilient towards mircoplastic pollution. (2018-03-05)

The world's most powerful acoustic tractor beam could pave the way for levitating humans
Acoustic tractor beams use the power of sound to hold particles in mid-air, and unlike magnetic levitation, they can grab most solids or liquids even small insects. For the first time University of Bristol engineers have shown it is possible to stably trap objects larger than the wavelength of sound in an acoustic tractor beam. This discovery could enable the manipulation of drug capsules or micro-surgical implements within the body. The discovery could even lead to levitating humans. (2018-01-21)

Scientists develop a new material for manipulating molecules
A scientist at the University of Córdoba, working with an international research team, has created a new porous single-crystal material which could have numerous applications in nanotechnology and catalysis. (2018-01-17)

Hydrogel paves way for biomedical breakthrough
Dubbed the ''invisibility cloak'', engineers at the University of Sydney have developed a hydrogel that allows implants and transplants to better and more safetly interact with surrounding tissue. (2020-08-03)

Insulating with microscopic bubbles
Better thermal insulation means lower heating costs - but this should not be at the expense of exciting architecture. A new type of brick filled with aerogel could make thin and highly insulating walls possible in the future -- without any additional insulation layer. (2018-01-16)

Mimicking a sweet solution to mop up pollution
A fast and safe method to prepare a 3D porous material that mimics the shape of a honeycomb could have broad applications from catalysis to drug delivery or for filtering air to remove pollutants or viruses. (2018-05-11)

When it comes to polymer fragility, size does matter
By combining a number of tools and techniques, a team of researchers from the US, Italy and China was able to find a more complete picture of the glass transition phenomenon in polymers and to point out where the polymers differ from small molecular liquids. The researchers explain their findings this week in The Journal of Chemical Physics. (2016-10-18)

Icy giant planets in the laboratory
Giant planets like Neptune may contain much less free hydrogen than previously assumed. HZDR researchers drove shock waves through two different types of plastic to reach the same temperatures and pressures present inside such planets, and observed the behavior using ultra-strong X-ray laser pulses. Unexpectedly, one of these plastics kept its crystalline structure even at the most extreme pressures. Since the icy giant interiors are made up of the same components as the plastic, planetary models may need to be partially reconsidered. (2019-03-25)

Making 3-D printing safer
Within the past decade, 3-D printers have gone from bulky, expensive curiosities to compact, more affordable consumer products. At the same time, concerns have emerged that nanoparticles released from the machines during use could affect consumers' health. Now researchers report in ACS' Environmental Science & Technology a way to eliminate almost all nanoparticle emissions from some of these printers. (2017-08-30)

Co-nonsolvency explained: Researchers publish ground-breaking findings
Researchers from the Higher School of Economics and the University of Leipzig have created a model which enables the timely and effective prediction of polymer behavior in mixed solvents. This is the first scientific work to explain, using statistical mechanics, the effect of suppression of co-nonsolvency at high pressures. The findings have been published in the journal Soft Matter. (2017-12-19)

Developing a method for synthesizing a novel polyester with alternating arrangement
Toyohashi University of Technology researchers have developed a method for synthesizing a 'pure' alternating copolymer of L-- and D-lactic acids in which L-- and D-lactic acids are alternately arranged, i.e., a 'syndiotactic' poly(lactic acid). With this method, it is possible to synthesize syndiotactic polyesters in which L- and D-type monomers are arranged alternately. These polyesters are conventionally difficult to synthesize. The present method is expected to facilitate the development of novel polyesters with unprecedented characteristics. (2018-05-10)

The fate of plastic in the oceans
The concentrations of microplastics in the surface layer of the oceans are lower than expected. Researchers at the GEOMAR Helmholtz Centre for Ocean Research Kiel, the Kiel Cluster of Excellence 'The Future Ocean' and the Helmholtz-Zentrum Geesthacht experimentally demonstrated that microplastics interact with natural particles and form aggregates in seawater. This aggregate formation could explain how microplastics sink into deeper water layers. The results were published in Proceedings of the Royal Society B today. (2018-08-29)

Eco-friendly waterproof polymer films synthesized using novel method
In a NANO paper published in NANO, a researcher from the Department of Chemistry at Myongji University has applied a novel method to control the wettability of polymeric substrates, which has numerous practical implications. (2018-10-31)

What the smell can tell
Breath analysis in disease diagnostics is a promising research field, and the advances in instrumentation allows the accurate detection of metabolites. But not only the health status of patients, but also the preservation status of museum artifacts could be monitored. In their publication in Angewandte Chemie, heritage science researchers have investigated emissions of volatile organic compounds from plastics-based art objects and provided a first calibration scheme for polymer degradation in museum environment. (2018-03-06)

High levels of hazardous chemicals found in plastics collected from Lake Geneva
The first analysis of plastic litter from Lake Geneva finds toxic chemicals like cadmium, mercury and lead - - whose levels sometimes exceed the maximum permitted under EU law. The presence of chemicals that are now restricted or banned in plastic production reflects how old the plastic litter could be -- and indicates that like oceans, freshwater habitats are also affected by plastic pollution. (2018-04-03)

First-time observation of genetic/physiological damage caused by nanoplastics in mussels
Researchers at the UAB, in collaboration with the University of Aveiro, Portugal, were able to confirm for the first time that small concentrations of nanoplastics cause genetic and physiological damage in the Mediterranean mussel Mytilus galloprovincialis. The research was recently published in Science of the Total Environment. (2018-07-25)

Polymer-graphene nanocarpets to electrify smart fabrics
Scientists developed a versatile modification method of graphene without destroying it, which can build strong covalent bonds with polymers. Conductive materials obtained through such method are promising for the development of flexible organic electronics. (2018-04-17)

Researchers develop viable, environmentally-friendly alternative to Styrofoam
Washington State University researchers have developed an environmentally-friendly, plant-based material that for the first time works better than Styrofoam for insulation. (2019-05-09)

Improved plastics recycling thanks to spectral imaging
Plastics recycling is complicated by the need to recycle similar plastics together. The presence of flame retardants in plastics also needs to be identified, and a NIR hyperspectral imaging method to do so is reported in this paper in the peer-reviewed, open-access journal, JSI -- Journal of Spectral Imaging. (2019-01-22)

Seafood study finds plastic in all samples
A study of five different seafoods has found traces of plastic in every sample tested. (2020-08-12)

'Environmentally friendly' flame retardant could degrade into less safe compounds
To reduce the risk of fire, many everyday products -- from building materials to furniture to clothing -- contain flame retardants. In recent years, some of these compounds were shown to have harmful effects on the environment, causing them to be replaced by more eco-friendly alternatives. However, a new study in ACS' journal Environmental Science & Technology, indicates that heat or ultraviolet light could break down a 'safe' flame retardant into potentially harmful compounds. (2019-01-09)

Shrink films get a grip (video)
Many people fondly remember playing with toys known as Shrinky Dinks® -- sheets of polystyrene plastic with shapes that kids can color, cut out and heat in an oven, where they shrink into thicker pieces of plastic. Now, researchers have repurposed shrink films for an unexpected use: making strong, durable grippers that could someday encapsulate materials or be incorporated into soft robotics. They report their results in ACS Applied Polymer Materials. (2019-05-01)

Plankton feces could move plastic pollution to the ocean depths
Plastic waste could find its way deep into the ocean through the feces of plankton, new research from the University of Exeter and Plymouth Marine Laboratory shows. (2016-02-29)

Marine biology -- Sponges as biomonitors of micropollution
Sponges are filter feeders that live on particulate matter -- but they can also ingest microscopic fragments of plastics and other pollutants of anthropogenic origin. They can therefore serve as useful bioindicators of the health of marine ecosystems. (2020-10-23)

Oral delivery of nanoparticles
Nanoparticles show great promise as diagnostic tools and drug delivery agents. The tiny particles, which scientists can modify with drugs, dyes or targeting molecules, can travel in the circulation and squeeze through small spaces into cells and tissues. But until now, most nanoparticles had to be injected into the bloodstream because they weren't absorbed well orally. Now, researchers reporting in ACS Nano have modified nanoparticles to improve their uptake in the gastrointestinal tract. (2018-08-08)

Surrey reveals simple method to produce high performing Lithium Selenium batteries
Engineers at the University of Surrey have developed a simple and elegant method of producing high-powered lithium-selenium (Li-Se) batteries. (2020-11-16)

Simulated sunlight reveals how 98% of plastics at sea go missing each year
A new study helps to solve the mystery of missing plastic fragments at sea. Scientists selected microplastics prevalently found on the ocean surface and irradiated them with a solar simulator system. They found that simulated sunlight increased the amount of dissolved carbon in the water, making those tiny plastic particles tinier. Direct, experimental proof of the photochemical degradation of marine plastics remains rare. This work provides novel insight into the removal mechanisms and potential lifetimes of a select few microplastics. (2019-11-07)

Novel method reveals small microplastics throughout Japan's subtropical ocean
Samples taken from the ocean surrounding the subtropical island of Okinawa have revealed the presence of microplastics in all six areas surveyed, finds new study. (2020-12-24)

Researcher invents an easy-to-use technique to measure the hydrophobicity of micro- and nanoparticle
The technique may have a far-reaching implication for many scientific and industrial applications and disciplines that involve particulate matter. (2019-10-17)

Bubbles and whispers -- glass bubbles boost nanoparticle detection
OIST-fabricated sensor detects tiny particles with field of bouncing light. (2018-07-11)

Antibacterial polymers
Artificial polymers, like antibiotic peptides, need both hydrophobic and hydrophilic domains in their molecular structure to exert antibacterial activity. Now, researchers from Canada have synthesized a phosphonium polymer that challenges this view. As outlined in the journal Angewandte Chemie, their polymer salt contained no hydrophobic alkyl chains but still acted as an extraordinarily efficient biocide. A re-evaluation of established strategies in antibiotics polymer research might be necessary. (2018-09-06)

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