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Siloxane Polymer Achieves Record Stretchiness

Chemists working at Pennsylvania-based materials supplier Gelest have created a siloxane polymer that is so stretchy, two yards of the material could extend across the length of a football field. Gelest’s manager of silicone R&D, Jonathan Goff, publicly unveiled the polymer Tuesday at the ACS national meeting in Boston during a session hosted by the… Read more »

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Automated Flow Technique Makes Length- And Sequence-Specific Polymers

Traditional synthetic polymers contain a distribution of chain lengths and monomer sequences. For applications such as molecular electronics, however, scientists want to create polymers of a specific sequence and length—a difficult task. Frank A. Leibfarth, Jeremiah Johnson, and Timothy Jamison at MIT have now developed Flow-IEG (flow synthesis and iterative exponential growth), a semi-automated coupling… Read more »

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Porous Polymer Could Spot Traumatic Brain Injuries

The forces from an explosive blast or a head-on tackle can shake a person’s head, causing damage that might trigger long-term neurodegeneration. To help doctors determine whether a patient might suffer from this type of traumatic brain injury, materials scientists have developed a thin polymeric film that changes color when struck with forces similar to… Read more »