Ion conducting polymer electrolytes composed of poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-HFP), poly(methyl methacrylate) (PMMA) and lithium triflate (LiTf) were prepared using the solution casting method. Structural change and complex formation in the blend electrolyte systems were confirmed from the X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy and scann...

Site-specific chemical reactions following core excitation of poly-(methyl methacrylate) (PMMA) and poly-(isopropenyl acetate) (PiPAc) thin films were investigated. New x-ray absorption spectra of PMMA and PiPAc at the C and O K edges and theoretical spectra within the framework of density functional theory using model molecules were reported, and some new peak assignments were proposed for the...

Abstract The “stress-shielding” problem, common with metallic implants, may be solved by using biocompatible sandwiches a polymeric core between two skin sheets. To achieve such sandwiches, process route has been developed, beginning the grafting of poly-(methyl-methacrylate) (PMMA) on titanium (Ti) sheets via “grafting from” technique. Grafting resulted in variable thicknesses PMMA Ti Hot-pres...

Most current resistive memory has the problems of high and unstable threshold voltages device misread rates caused by low switching ratios. To address these problems, an Al/poly(methyl methacrylate) (PMMA)/silkworm hemolymph:gold nanoparticles/PMMA/indium tin oxide is fabricated adding PMMA layers above below active layer. The not only stable bipolar characteristics with a ON/OFF ratio but also...

By spectral phase shaping of both the pump and probe pulses in coherent anti-Stokes Raman scattering (CARS) spectroscopy we demonstrate the extraction of the frequencies of vibrational lines using an unamplified oscillator. Furthermore we demonstrate chemically selective broadband CARS microscopy on a mixed sample of 4 μm diameter polystyrene (PS) and poly(methyl methacrylate) (PMMA) beads. The...

The profile shape and the flow behavior of polymer nanoscale gratings made by a thermal nanoimprint process are precisely examined using visible light angular scatterometry. Nanoimprinted poly methyl methacrylate PMMA lines with 60–800 nm width, 100–200 nm height, and varied residual thicknesses of 70–400 nm have been investigated using this optical approach, and insightful observations are mad...

Reiter has recently reported a situation in which the dewetting of quasi-solid films is linked to plastic deformation--rather than viscous flow--resulting from capillary forces. Herein we propose that, in thin films of some glassy polymers--especially poly(methyl methacrylate) (PMMA)--prepared by spin-casting from solvent, structural relaxation might impart sufficient stress to cause plastic de...

Utilizing ~1 W of microwave power, we achieved heating of PCR buffer with unprecedented temperature ramp rates that allowed for rapid thermocycling. Polymeric microdevices, chosen for their low cost and ease of fabrication, were constructed from polycarbonate (PC), poly(methyl-methacrylate) (PMMA), and polyester-toner (PeT) using fast, simple microfabrication via computer-aided milling for PC a...

The humidity response of poly(methyl methacrylate) (PMMA)-based optical fiber Bragg gratings (POFBGs) has been studied. The characteristic wavelength of the grating is modulated by water absorption-induced swelling and refractive index change in the fiber. This work indicates that anisotropic expansion may exist in PMMA optical fiber, reducing the humidity responsivity of the grating and introd...

Ionic conducting polymers are of considerable interest recently, as they have wide range applications including electrical storage devices. The present study is aimed at designing and characterizing one such ion polymer complexed with various ionic salts. Here, solid electrolyte films consisting Poly methyl methacrylate (PMMA) chloride salts (X) (X= KCl, NaCl, MgCl2) been prepared by the solven...