Fourier transform infrared spectroscopy poly

The structure of poly(iminocarbonates) synthesized by the direct interfacial polymerization of BPA and cyanogen bromide was analyzed by NMR, Fourier transform infrared spectroscopy and elemental analysis and found to be identical in all aspects to authentic poly(imino-carbonates) obtained by solution polymerization (46). 

V.A. Basiuk and J. Douda, Pyrolysis of poly glycine and poly 1 alanine analysis of less volatile products by gas chromatography/Fourier Transform infrared spectroscopy/mass spectrometry, J. Anal. Appl. Pyrol., 55, 235 236 (2000). 

Gaboury, S. R. Urban, M. W. Analysis of Gas-Plasma-Modified Poly(Dimethylsiloxane) Elastomer Surfaces. Attenuated-Total-Reflectance-Fourier Transform Infrared Spectroscopy. In Structure-Property Relations in Polymers Urban, M. W., Graver, C. D., Eds. Advances in Chemistry Series 236 American Chemical Society Washington, DC, 1993 pp 777-790. 

Miranda et al. used a combination of Fourier-Transform Infrared Spectroscopy (FT-IR) and PCA to elucidate the chemistry that occurs when poly(vinyl alcohol)... 

Poly(vinyl acetate). The dielectric and mechanical spectra of hybrids produced by mixing a poly (vinyl acetate)—THF solution with TEOS, followed by the addition of HC1 have been investigated (45). Mixtures were made which were believed to be 0, 5, 10,15, and 20 wt °/o Si02, respectively. These composites were transparent and Fourier transform infrared spectroscopy (ftir) revealed hydrogen bonding between the silicate network and carbonyl units of the poly(vinyl acetate) (PVAc). No shift in the T of the composites from that of the pure PVAc was observed. Similady, the activation... 

Several researchers have combined the separating power of supercritical fluid chromatography (SFC) with more informative spectroscopic detectors. For example, Pinkston et. al. combined SFC with a quadrupole mass spectrometer operated in the chemical ionization mode to analyze poly(dimethylsiloxanes) and derivatized oligosaccharides (7). Fourier Transform infrared spectroscopy (FTIR) provides a nondestructive universal detector and can be interfaced to SFC. Taylor has successfully employed supercritical fluid extraction (SFE)/SFC with FTIR dectection to examine propellants (8). SFC was shown to be superior over conventional gas or liquid chromatographic methods. Furthermore, SFE was reported to have several advantages over conventional liquid solvent extraction (8). Griffiths has published several... 

Holland, B. J. and Hay, J. N. The kinetics and mechanisms of the thermal degradation of poly(methyl methacrylate) studied by thermal analysis-Fourier transform infrared spectroscopy. Polymer 2001 42 4825. 

Griffiths PR, de Haseth JA (2007) Fourier Transform Infrared Spectroscopy. Wiley, Hoboken Gunzler H, Gremlich HU (2002) IR Spectroscopy. Wiley-VCH, Weinheim Guo Y, Peng Y, Wu P (2008) A two-dimensional correlation ATR-FTIR study of poly(vinyl methyl ether) water solution. J Molec Stmcture 87 486-492 Hermans JJ (1947) Deformation and swelling of polymer networks containing comparatively long chains. Trans Faraday Soc 43 591-600... 

Mesoporous alumina samples have been synthesized using poly(ethylene oxide)-based nonionic surfactants. The effect that the addition of n-alkylamines to the synthesis gel has on the texture and thermal stability of mesoporous aluminas is studied. Textural and structural characterization using nitrogen adsorption, powder X-ray diffraction, a1 nuclear magnetic resonance and Fourier Transform infrared spectroscopy, as well as catalytic n-hexane hydroisomerization tests are performed. 

Torikai et aU have y-irradiated poly(styrene-co-methacrylate) copolymers and blends of polystyrene and polymethacrylate. They investigated the influence of irradiation on PMMA by ultraviolet and Fourier transform infrared spectroscopies and by viscosity measurements. In the case of the blends, the degradahon of the PMMA is similar to that awaited. No shielding effect... 

Surface modification in order to improve the hydrophilicity of membrane surface can be achieved by blending surface modifying macromolecules to the base material. Blends of phenolphthalein poly(ether sulfone) and poly(acrylonitrile-co-acrylamido methylpropane sulfonic acid), a material that contains charged groups, have been prepared [76]. It was found that the charged groups tend to accumulate onto the membrane surface using X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy. 

Gonzalez, A. Irusta, L. Femandez-Berridi, M.J. Iriarte, M. Iruin, J.J. Application of pyrolysis/gas chromatography/ Fourier transform infrared spectroscopy and TGA techniques in the smdy of thermal degradation of poly (3-hydro-xybutyrate). Polym. Degrad. Stabil. 2005, 87, 347-354. 

AFM, atomic force microscopy DMA, dynamic mechanical analysis DSC, differential scanning calorimetry flVR, oxidized natural rubber FTIR, Fourier transform infrared spectroscopy NR, natural rubber PLA, poly(lactic acid) QP, quaternary phosphonium salt TGA, thermogravimetric anal is TPU, thermoplastic polyurethane XPCL, end-carboxylated teledielic... 

In the present work, the thermo-oxidative reaction of TPPT in poly-a-olefin (PAO) has been investigated at 423 and 473 K, which are temperatures typically experienced by automobile engines [33], A combined investigation using Fourier transform infrared spectroscopy (FT-IR) and nuclear magnetic resonance (NMR) spectroscopy has been carried out for the first time to analyze the oil solutions after the heating experiments. 

It is interesting to note that striae have also been observed in certain polymer solutions stressed by shear between glass plates [2-8]. Marcher et al. [10] observed these patterns in carbazole-substituted helical poly-amino acid solutions stressed by shear. These workers used Fourier transform infrared spectroscopy to calculate order parameters describing the degree of alignment and packing of the carbazole side chains. 

The characterization of surface structure for miscible blends is a more formidable task, requiring techniques that are sensitive to the composition of the blend within several nanometers of the surface. X-ray photoelectron spectroscopy (xps) provided the first direct and quantitative evaluation of surface composition and surface composition gradients for miscible polymer blends of poly(vinyl methyl ether) (PVME) and polystyrene (PS) (22,23). Since that time, the situation has changed dramatically with the advance of theory and the application of exciting new experimental techniques to this problem. In addition to xps and pendant drop tensiometry (22,23), forward recoil spectroscopy (28), neutron (29) and x-ray reflectivity (30), secondary ion mass spectroscopy (either dynamic or time-of-flight-static) (31,32), and attenuated total reflectance Fourier transform infrared spectroscopy (33-35), have been applied successfully to study surface segregation. The advent of these new tools has enabled a multitechnique experimental approach toward careful examination of the validity of current surface segregation theories (36-39). 

Odeberg and co-workers [13] demonstrated grafting reactions in polystyrene-poly(n-butylacrylate) copolymers using Fourier transform infrared spectroscopy and proton neutron magnetic resonance spectroscopy. DMA and TMA are used to study crosslinking. 

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