Infrared-visible sum frequency generation spectroscopy (SFG) was used to measure the interfacial concentrations of poly(methyl methacrylate) (PMMA)/polystyrene (PS) blends next to a sapphire substrate. The acid-base interactions of carbonyl groups of PMMA with the hydroxyl groups on the sapphire drive the interfacial segregation of PMMA next to the sapphire substrate. Using the shift of sapphir...

We present methodologies for fabricating block copolymer assemblies grafted onto flat solid substrates, where each block of the copolymer possesses a systematic and gradual variation of molecular weight as a function of the position on the substrate. We demonstrate the utility of this technique on two case studies. In the first project, we generate surface-tethered poly[(2-hydroxyethyl methacry...

Nanosized metal oxides dispersed polymer composites constitute a fascinating class of polymer composite materials. Synthesis of such composite materials through solvent casting enhances the polymer synthetic technology. Solvent casting method was used to prepare Cobalt oxide (Co3O4) dispersed Poly (methyl methacrylate) (PMMA) nano composite<span style="text-decoration: und...

We examine the transfer of graphene grown by chemical vapor deposition (CVD) with polymer scaffolds of poly(methyl methacrylate) (PMMA), poly(lactic acid) (PLA), poly(phthalaldehyde) (PPA), and poly(bisphenol A carbonate) (PC). We find that optimally reactive PC scaffolds provide the cleanest graphene transfers without any annealing, after extensive comparison with optical microscopy, x-ray pho...

In the main search, efforts are made to develop properties of PMMA resin that is used: To create a blend polymer for upper and lower prosthesis complete denture, several weight ratios poly vinyl pyrrolidone (pvp) (0,2%, 6%, 10%, 14%, 18%, 22%, 26%) were added cold-cured methyl methacrylate (PMMA). The effects external polyvinylpyrrolidone (PVP) concentrations on mechanical features such as hard...

Submit Manuscript | http://medcraveonline.com Abbreviations: PMMA: Poly Methyl Methacrylate; TSMR: Thickness Shear Mode Resonator; IECOFS: Intrinsic Exposed Core Optical Fiber Sensor; ATR: Attenuated Total Reflectance; DTS: Distributed Temperature Sensor; CPSM: Cylindrical Phase Shift Migration Algorithm; ANNs: Artificial Neural Networks; MFL: Magnetic Flux Leakage; ICS: Internal Corrosion Sens...

Submit Manuscript | http://medcraveonline.com Abbreviations: PMMA: Poly Methyl Methacrylate; TSMR: Thickness Shear Mode Resonator; IECOFS: Intrinsic Exposed Core Optical Fiber Sensor; ATR: Attenuated Total Reflectance; DTS: Distributed Temperature Sensor; CPSM: Cylindrical Phase Shift Migration Algorithm; ANNs: Artificial Neural Networks; MFL: Magnetic Flux Leakage; ICS: Internal Corrosion Sens...

The hierarchical porous structures of vinyl polymers, such as polystyrene (PSt) and poly(methyl methacrylate) (PMMA), were derived from morphologies of a biomineral through replication. The resultant PSt hierarchical structures showed enhanced adsorption properties of organic molecules as hydrophobic adsorbents in an aqueous medium.

Utilization of computer-aided design/computer-aided manufacturing (CAD/CAM) increases in dental prosthetics. From single restorations and bridges, computer-aided engineering supports fabrication of partial and now complete removable dentures. Improved materials, like crosslinked poly (methyl methacrylate) (PMMA) and CAD/CAM technology permit realization of a superior quality denture in shorter ...

Carbon nanospheres with a high Brunauer-Emmett-Teller (BET) specific surface area were fabricated via the pyrolysis of polyacrylonitrile-poly(methyl methacrylate) (PAN-PMMA) core-shell nanoparticles. Firstly, PAN-PMMA nanoparticles at high concentration and low surfactant content were controllably synthesized by a two-stage azobisisobutyronitrile (AIBN)-initiated semicontinuous emulsion polymer...