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MIT engineers create 2D polymer that self-assembles into sheets

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Using a novel polymerization process, MIT chemical engineers have created a new two-dimensional polymer that self-assembles into sheets, unlike all other polymers which form one-dimensional chains. Until now, scientists had believed it was impossible to induce polymers to form 2D sheets. —Michael Strano.

Polymer 435
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Uppsala team develops composite polymer dots for efficient, stable H2 production from water and sunlight

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Researchers at Uppsala University have developed photocatalytic composite polymer nanoparticles (“polymer dots”) that show promising performance and stability for the production of hydrogen from water and sunlight. These polymer dots are designed to be both environmentally friendly and cost-effective. Photograph: P-Cat.

Polymer 397
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JAIST team investigates how self-repairing polymer can improve durability of silicon anodes

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With its self-healing properties, the PBS coating offers a much more stable performance in terms of capacity compared to a bare anode or one coated with PVDF, a polymer commercially used in lithium-ion batteries. Tejkiran Pindi Jayakumar, who were completing a doctoral course at JAIST at the time, is published in ACS Applied Energy Materials.

Polymer 418
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UC Berkeley team develops 3D printing with light: Computed Axial Lithography

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In brief, it uses light to transform gooey liquids into complex solid objects in only a matter of minutes. We demonstrated concurrent printing of all points within a three-dimensional object by illuminating a rotating volume of photosensitive material with a dynamically evolving light pattern. We print features as small as 0.3

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Rennovia produces cost-advantaged 100% bio-based nylon-6,6 polymer; automotive apps

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a privately held company that develops novel catalysts and processes for the cost-advantaged production of chemical products from renewable feedstocks, has produced and shipped to a prospective partner samples of what it believes to be the world’s first 100% bio-based nylon-6,6 polymer. Rennovia, Inc., Earlier post.)

Polymer 309
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Researchers develop concept for ultra-fast hydrogen sensor; plasmonic metal–polymer hybrid nanomaterial

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In a paper in the journal Nature Materials , the team presents a plasmonic metal–polymer hybrid nanomaterial concept, in which the polymer coating reduces the apparent activation energy for hydrogen transport into and out of the plasmonic nanoparticles, while deactivation resistance is provided via a tailored tandem polymer membrane.

Polymer 296
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Fudan University researchers develop polymer with metal backbone

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Researchers at Fudan University have developed a polymer with a metallic backbone that is conductive, thermally stable, and has interesting opto-electronic properties. Polymers with a metal backbone could combine the advantages of both types of material and open routes to materials with novel functionality. Resources Zeng, K.,

Polymer 225