New polymer releases molecular cargo in response to force

Caltech scientists have developed a new kind of polymer that can carry a chemical payload as part of its molecular structure and release it in response to mechanical stress. The chemical system they have developed could one ...

Synthesis of helical ladder polymers

Researchers at Kanazawa University synthesized helical ladder polymers with a well-defined cyclic repeating unit and one-handed helical geometry, as they reported in the Journal of the American Chemical Society.

Polymer reversibly glows white when stretched

Researchers at the University of Fribourg's Adolphe Merkle Institute (AMI) and Hokkaido University in Japan have developed a method to tailor the properties of stress-indicating molecules that can be integrated into polymers ...

Fullerenes bridge conductive gap in organic photovoltaics

Organic photovoltaics have achieved remarkably high efficiencies, but finding optimum combinations of materials for high-performance organic solar cells, which are also economically competitive, still presents a challenge. ...

New moves for polymer chain dynamics

A technique that enables researchers to watch the motion of individual molecules within a polymer has been developed by KAUST: it challenges current thinking about polymer physics and could lead to new materials that can ...

Scientists develop novel method to monitor molecular aggregation

Chiral molecules are defined as molecules that are non-superimposable on their mirror images, much like that of left and right human hand bone structure. There are many examples of chiral molecules in nature, including proteins ...

Capturing the surprising flexibility of crystal surfaces

Images taken using an atomic force microscope have allowed researchers to observe, for the first time, the flexible and dynamic changes that occur on the surfaces of 'porous coordination polymer' crystals when guest molecules ...

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