Polyvinyl chloride (PVC) is a thermoplastic polymer widely used in industry, reflected in the number of tons consumed annually in the world. We present a 48 year old male patient with no history of atopy, plumber by profession for 30 years, developed progressive dyspnea and dry cough in the last 3 years, triggered in the work environment and persist outside it, related it to manipulate an adhes...

An air-stable LiBH4 polymeric composite was successfully prepared by modifying LiBH4 with a gas-barrier polymer matrix, poly-(methylmethacrylate) (PMMA). The as-prepared LiBH4@PMMA composite started to dehydrogenate at 53 °C with the first main dehydrogenation peak at 116 °C, and 5.2 wt% of hydrogen released at 162 °C within 1 h.

A predictive film thickness model based on an accepted equation of state is applied to the spin-coating sub-micron poly(methylmethacrylate) viscous thin films from toluene. Concentration effects density and dynamic viscosity solution are closely examined. The calibrated with a system-specific drying rate was observed scale square root spin speed. Process mapping used generate three-dimensional ...

In this paper, we have investigated characteristics of ultraviolet and visible radiation generated by the 2.7 MeV electrons. It is shown that Cherenkov (ChR) intensity predominates over scintillations including wavelength shifting cathodoluminescence quenching in pure poly(methylmethacrylate) (PMMA) for such electron energy. To separate ChR scintillations, measured emission spectra orientation ...