Characterization of covalently bonded proteins on poly(methyl methacrylate) by X-ray photoelectron spectroscopy

2010 ◽  
Vol 78 (1) ◽  
pp. 61-68 ◽  
Author(s):  
Geoffrey W. Nelson ◽  
Megan Perry ◽  
Shu-Mei He ◽  
David L. Zechel ◽  
J. Hugh Horton
Keyword(s):  
Methyl Methacrylate ◽  
Photoelectron Spectroscopy ◽  
X Ray ◽  
Poly Methyl Methacrylate ◽  
Covalently Bonded

scholarly journals Preparation and Characterization of Zinc Oxide (Zno)/Polymethyl Methacrylate (PMMA) Nanocomposites

2021 ◽  
Vol 04 (04) ◽  
Author(s):  
Jayashree Bagawade ◽  
Keyword(s):  
Zinc Oxide ◽  
Methyl Methacrylate ◽  
Zinc Oxide Nanoparticles ◽  
Nanocomposite Films ◽  
Oxide Nanoparticles ◽  
X Ray Diffraction ◽  
X Ray ◽  
Poly Methyl Methacrylate ◽  
Absorption Measurements

A series of novel zinc oxide / Poly (methyl methacrylate) nanocomposite films with different ZnO contents were prepared through inclusion of pre-synthesized zinc oxide nanoparticles. The physical composition and morphology of the as-prepared nanocomposites were studied by XRD and TEM. The TEM analyses revealed that the zinc oxide nanoparticles have a particle size of ~3–5 nm. X-ray diffraction proved the presence of the amorphous PMMA in the nanocomposites. The intermolecular interactions within the polymer nanocomposites were explored by FTIR and XRD. FTIR spectra confirmed the dispersion of the zinc oxide nanoparticles in the Poly (methyl methacrylate) i.e. PMMA matrices. The UV-Vis absorption measurements of the ZnO/PMMA nanocomposites proved their potential optical properties.

scholarly journals The Synthesis and Characterization of Poly(methyl methacrylate-tourmaline acrylate)

2016 ◽  
Vol 2016 ◽  
pp. 1-6
Author(s):  
Yingmo Hu ◽  
Xubo Chen ◽  
Yunhua Li
Keyword(s):  
Surface Modification ◽  
Methyl Methacrylate ◽  
Negative Ions ◽  
Fluorescence Analysis ◽  
Synthesis And Characterization ◽  
Acryloyl Chloride ◽  
X Ray ◽  
Poly Methyl Methacrylate

In order to synthesize the tourmaline-containing functional copolymer, the polymerizable organic tourmaline acrylate was prepared by the surface modification on tourmaline powder and then copolymerization with methyl methacrylate to get poly(methyl methacrylate-tourmaline acrylate). The synthetic processes were optimized, and the structures of the as-prepared samples were characterized by IR, SEM, and X-ray fluorescence analysis. The characterization results indicated that the tourmaline has been introduced into the copolymer by means of surface modification with acryloyl chloride and following copolymerization with methyl methacrylate. The results from the negative ions measurement revealed that the amounts of released negative ions from both the modified tourmaline and its copolymer are much larger than that of tourmaline.

Thermal Degradation of Polymers.II. Synthesis and Characterization of a Compound Which Models the Head-to-Head Linkage in Poly(Methyl Methacrylate)

1987 ◽  
Vol 40 (3) ◽  
pp. 501 ◽  
Author(s):  
GD Fallon ◽  
ML Felsbourg ◽  
KA Holland ◽  
ID Rae
Keyword(s):  
Methyl Methacrylate ◽  
Oxidative Dimerization ◽  
X Ray ◽  
Poly Methyl Methacrylate ◽  
X Ray Crystallography ◽  
Head Unit ◽  
Ketene Acetal ◽  
Central Bond ◽  
Mm2 Calculations

As models for a poly(methyl methacrylate ) chain which contains a head-to-head unit, the (�)- and meso -isomers of tetramethyl 2,4,5,7-tetramethyloctane-2,4,5,7-tetracarboxylate have been synthesized by oxidative dimerization of a trimethylsilyl ketene acetal. The isomers were characterized by 1H and 13C n.m.r. spectroscopy, and the molecular structure of the meso -isomer was determined by X-ray crystallography. Molecular mechanics (MM2) calculations showed that three conformations of each isomer, about its central bond, had comparable steric energies. Calculated energy barriers to interconversion of the conformers were low.

An X-ray photoelectron spectroscopy study of poly(methyl methacrylate) surface modified by 193-nm laser radiation

1994 ◽  
Vol 33 (3) ◽  
pp. 331-338 ◽  
Author(s):  
Paul P. van Saarloos ◽  
Chris F. Vernon ◽  
Traian V. Chirila ◽  
Craig Klauber
Keyword(s):  
Laser Radiation ◽  
Methyl Methacrylate ◽  
Photoelectron Spectroscopy ◽  
Spectroscopy Study ◽  
X Ray ◽  
Poly Methyl Methacrylate ◽  
Surface Modified ◽  
193 Nm

Solid Skin Characterization of PMMA/MAM Foams Fabricated by Gas Dissolution Foaming over a Range of Pressures

2012 ◽  
Vol 326-328 ◽  
pp. 434-439 ◽  
Author(s):  
Javier Pinto ◽  
Samuel Pardo ◽  
E. Solórzano ◽  
Miguel A. Rodríguez-Pérez ◽  
M. Dumon ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Skin Thickness ◽  
X Ray ◽  
Poly Methyl Methacrylate ◽  
Precursor Material ◽  
Skin Formation ◽  
New Vision ◽  
Copolymer Poly ◽  
Fabrication Parameters

A new model for solid skin formation on submicrocellular foams based on PMMA is presented. Structural foams has been produced by the solid state foaming technique using as precursor material a blend of poly (methyl methacrylate) PMMA and a triblock copolymer [poly (methyl methacrylate)-block poly (butyl acrylate)-block poly (methyl methacrylate), MA. An analysis on the skin thickness and densification has been carried based on x-ray high resolution radiography. The obtained results have been related to the fabrication parameters, i.e. MAM content of the blend and foaming pressure, and provide us a new vision about the processes that control the formation of a solid unfoamed, or partially unfoamed, skin in these materials.

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