This new set expands the Starna range of polystyrene film references for use in FTIR, MidIR and NIR Wavelength Calibration to include both Transmission and ATR modes. Existing films are available in two thicknes
As the film thickness increases by a factor of 2, the buckling wavelength also increases by a factor of 2 as measured by both optical microscopy and light scattering. Through Eqn. (1), the modulus of the PS film is calculated to be Ef=3.4 GPa±0.1 GPa for the entire range of ...
Film: Liquid film of solution spread on the substrate FS: Force spectroscopy FTIR: Fourier transform IR GPC: Gel permeation chromatography Initial solution: Solution at the start of spin-coating MEK: Methyl ethyl ketone Mw: Molecular weight ...
that require a narrow particle size distribution, such as for the calibration of analytical instruments. To address this shortcoming associated with the emulsion polymerization process, adaptations can be incorporated that result in a narrower particle size distribution, e.g. applying seed methods [96]...
Recorded spectra and thermograms were evaluated and confirmed the PS nature of the samples (matching FTIR spectra and a glass transition of 100 °C). T. molitor larvae were reared at Aarhus University, Department of Animal Science. Prior to the experiment the diet for the larvae consisted of ...
To create a slippery surface, natural-based BSO was infused into the electrospun fiber mats using the spin coating technique. This technique allows the production of a uniform thin film layer by depositing a small drop of BSO onto the center of a substrate and then spinning the substrate at ...
A Waters 2410 refractive-index detector (λ 1/4 930 nm) with a PS calibration was used. Scanning electron microscopy (SEM) of the membranes was carried out on a LEO Gemini 1550 VP (Zeiss, Oberkochen, Germany) at a voltage of 3 or 5 kV. The samples were coated with 2.0 nm platinum....
Conversely, in SLIPS, a lubricating thin film coated on the surface makes sure the liquid droplets on the surface slide away. This concept is inspired by the natural pitcher plant [17], which has a thin lubricating layer on the rough microscopic structures on its peristome. This lubricating ...
has been successfully synthesized by styrene–CA (10.8 mol %) suspension free-radical copolymerization followed by excess (2.5 times the stoichiometric amount of) ZnO melt neutralization, as evidenced by GPC, acid–base titration, FTIR and NMR spectroscopic, TGA, and intrinsic viscosity measurement re...