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Polymers news

Engineers turn plastic insulator into heat conductor

Plastics are excellent insulators, meaning they can efficiently trap heat - a quality that can be an advantage in something like a coffee cup sleeve. But this insulating property is less desirable in products such as plastic ...

dateMar 30, 2018 in Polymers
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Polymers that mimic chameleon skin

Biological tissues have complex mechanical properties – soft-yet-strong, tough-yet-flexible – that are difficult to reproduce using synthetic materials. An international team has managed to produce a biocompatible synthetic ...

dateMar 30, 2018 in Polymers
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Custom sequences for polymers using visible light

Researchers from Tokyo Metropolitan University used a light-sensitive iridium-palladium catalyst to make "sequential" polymers, using visible light to change how building blocks are combined into polymer chains. By simply ...

dateMar 22, 2018 in Polymers
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Novel adhesive and thermally stable epoxy resins

Epoxy resins or epoxies are organic compounds that can be hardened into adhesive materials with excellent thermal stability, mechanical strength, and chemical resistance. The hardening or 'curing' results from cross-linking ...

dateMar 21, 2018 in Polymers
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'Random walk' of heat carriers in amorphous polymers

The intrinsic structure of amorphous polymers is highly disordered with long, entangled molecular chains. They are usually considered as thermal insulators due to their ultra-low thermal conductivity. One effective way to ...

dateMar 01, 2018 in Polymers
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Printable, colorful camouflage with polymers

In nature, colors can serve as a form of communication, but they can also hide animals and plants, camouflaging them from sight. Researchers now report in ACS Applied Materials & Interfaces that they have developed polymers ...

dateFeb 07, 2018 in Polymers
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Porous polymer films with shape memory

Whether for separation processes, photovoltaics, catalysis, or electronics, porous polymer membranes are needed in many fields. Membranes with micropores that switch between different shapes and/or sizes would expand the ...

dateFeb 06, 2018 in Polymers
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Collective disentanglement of entangled polymers

LMU researchers have disproven the conventional theory used to explain the dynamics of polymer solutions. They show that for biopolymers collective effects facilitate chain mobility, which is reminiscent of the behavior of ...

dateFeb 05, 2018 in Polymers
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Macromolecular order in plastic kingdom

A team of researchers at the Institute of Synthetic Polymer Materials of the Russian Academy of Sciences, MIPT and elsewhere has determined how the regularity of polypropylene molecules and thermal treatment affect the mechanical ...

dateFeb 02, 2018 in Polymers
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Using DNA strands to design new polymer materials

McGill University researchers have chemically imprinted polymer particles with DNA strands - a technique that could lead to new materials for applications ranging from biomedicine to the promising field of "soft robotics."

dateDec 19, 2017 in Polymers
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DNA as a supramolecular building block

PhD student Willem Noteborn has investigated supramolecular structures. These can be useful for the loading of medicines and signalling molecules regarding, for example, cellular differentiation. In his thesis, he describes ...

dateDec 11, 2017 in Polymers
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Coloring the heartbeat

In the 17th Century two giants of science, Isaac Newton and Robert Hooke, were both trying to understand how the wings of butterflies and peacocks, which are made of the same material as our fingernails and hair, could colors ...

Electrostatic force takes charge in bioinspired polymers

Researchers at the University of Illinois and the University of Massachusetts, Amherst have taken the first steps toward gaining control over the self-assembly of synthetic materials in the same way that biology forms natural ...

Strengthening passive sampling of nonpolar chemicals

Passive sampling is a valuable technique for monitoring concentration levels of hydrophobic persistent organic pollutants (POPs) in the marine environment. New guidelines for the determination of partition coefficients between ...

Close up view of growing polymer chain show jump steps

(Phys.org)—A team of researchers at Cornell University has devised a means for watching as a polymer chain grows after application of a catalyst. In their paper published in the journal Science, the team explains how they ...

Improving gene delivery methods

Scientists in China are exploring new ways to treat cancer using gene therapy. We find out how their work inspired this beautiful and intricate design on the cover of Polymer Chemistry.

A new way to test body armor

Scientists at the National Institute of Standards and Technology (NIST) have developed a new way to investigate the high-performance fibers used in modern body armor. Described in the Journal of Polymer Science, the research ...

Resolving tension on the surface of polymer mixes

Better than playing with Legos, throwing polymer chains of different lengths into a mix can yield surprising results. In a new study published in EPJ E, physicists focus on how a mixture of chemically identical chains into ...

Electrically heated textiles now possible

Commuters, skiers, crossing guards and others who endure frozen fingers in cold weather may look forward to future relief as manufacturers are poised to take advantage of a new technique for creating electrically heated cloth ...

Precisely defined polymer chains now a reality

Manufactured polymers are ubiquitous in the market. These large molecules are used for synthetic clothing, rubbers and glues, and anything made of plastic. However, the material properties exhibited by man-made polymers rely ...

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