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Polymers news

This is what a stretchy circuit looks like

Researchers in China have made a new hybrid conductive material—part elastic polymer, part liquid metal—that can be bent and stretched at will. Circuits made with this material can take most two-dimensional shapes and ...

dateJun 14, 2018 in Polymers
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A tango with tangled polymers

While statisticians are driven by real-world problems, U of S mathematics professor Chris Soteros is motivated by the more esoteric behaviour of long-chain molecules, such as polymers and DNA, and the mathematical problems ...

dateJun 14, 2018 in Polymers
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Essential oils to fight bacterial infections

James Cook University scientists have discovered a technique to apply natural plant extracts such as Tea Tree Oil as a coating for medical devices, a process which could prevent millions of infections every year.

dateJun 07, 2018 in Polymers
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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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Material gradients could strengthen polymer components

Combining flexible and stiff materials has bestowed bamboo with a strength-to-weight ratio that rivals steel. Gradually transitioning from a soft to hard substance allows the squishy squid to slice up prey with rigid, scissor-like ...

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 ...

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 ...

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 ...

New molecular muscle responds to visible light

Picture a tiny, makeshift muscle that can curl a 20 milligram suspended weight when exposed to light. Under the right conditions, another mix packs enough power to bench-press a dime.

A new polymer raises the bar for lithium-sulfur batteries

Lithium-sulfur batteries are promising candidates for replacing common lithium-ion batteries in electric vehicles since they are cheaper, weigh less, and can store nearly double the energy for the same mass. However, lithium-sulfur ...

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."

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 ...

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 ...

Collaboration yields discovery of 12-sided silica cages
Learning about the Himalayas using Mars technology
T. Rex couldn't stick out its tongue, new research shows
Atomic-scale ping-pong
Chameleon-inspired nanolaser changes colors
Scientists find evidence of 27 new viruses in bees
The cells that control the formation of fat
On the path to an artificial cell

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