WASHINGTON, D.C., March 21, 2017 -- Polymers are used for myriad applications today, and perhaps the most important property that dictates which polymer is chosen for a given application is its "glass ...

THE variation of ultrasonic velocities with temperature in methyl methacrylate polymers was determined by Protzman 1 and by Melchor and Petrauskas 2. Using the optical diffraction method, Protzman ...

Polymer matrix composites (PMCs) exhibit impressive stiffness and strength properties that are commonly attributed to the reinforcing fibers. However, for many important mechanical properties, the ...

As anyone who extrudes plastic noodles knows, the glass transition temperature of a material is a bit misleading; polymers gradually transition between a glass and a liquid across a range of ...

High-Q microcavities have provided increasing opportunities for optical sensing and precision measurement in the past decades, with intriguing features of miniature size, non-invasiveness and fast ...

Very high glass transition temperatures (T g) in epoxy resin formulations are enabled by dianhydride curing agents. One question would be how high, particularly when compared with other more ...

This article focuses on the application of thermogravimetric analysis (TGA), thermomechanical analysis (TMA), and dynamic mechanical analysis (DMA) techniques. It comprehensively discusses the various ...

A new high-temperature polymer fuel cell that operates at 80-160 degrees Celsius, with a higher-rated power density than state-of-the-art fuel cells, solves the longstanding problem of overheating, ...

The increasing commercialization of space has found the industry under the environmental microscope, as its few conservation regulations could have ominous consequences if left unaddressed. Photo ...