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nuclear magnetic resonance spectroscopy

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Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006931
EISBN: 978-1-62708-395-9
... the characterization of plastics by infrared and nuclear magnetic resonance spectroscopy, differential scanning calorimetry, differential thermal analysis, thermogravimetric analysis, thermomechanical analysis, and dynamic mechanical analysis. The article also discusses the use of X-ray diffraction for analyzing...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006945
EISBN: 978-1-62708-395-9
... Association NIST National Institute of Standards and Technology NMR nuclear magnetic resonance NR nitrile resins; natural rubber NRM nuclear magnetic resonance PA polyamide PAE polyaryl ether PAEK polyaryl ether ketone (also abbreviated PEK) PAI polyamide-imide PAK polyaromatic ketones PAN polyacrylonitrile...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006933
EISBN: 978-1-62708-395-9
... spectroscopy, energy-dispersive x-ray spectroscopy, differential scanning calorimetry, thermogravimetric analysis, and dynamic mechanical analysis. The article describes the methods for molecular weight assessment and mechanical testing to evaluate plastics and polymers. The descriptions of the analytical...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006757
EISBN: 978-1-62708-295-2
...; PA, polyamide; PI, polyimide; PET, polyethylene terephthalate. Source: Ref 7 Characterization of polymers in failure analysis may involve several methods: Molecular spectroscopy. Infrared (IR) or Fourier transform infrared spectroscopy Nuclear magnetic resonance spectroscopy...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003525
EISBN: 978-1-62708-180-1
... microscopy and EDS methods are covered elsewhere in this Volume. More specialized chromatographic methods, including gas chromatography and gas chromatography-mass spectroscopy, are extremely useful in assessing low-concentration additives within a plastic resin. Nuclear magnetic resonance spectroscopy...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003522
EISBN: 978-1-62708-180-1
... may involve the following methods: Molecular spectroscopy. Infrared (IR) or Fourier transform infrared (FTIR) spectroscopy Nuclear magnetic resonance (NMR) spectroscopy Molecular weight (MW) and molecular weight distribution (MWD) using light scattering as well as other secondary...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006939
EISBN: 978-1-62708-395-9
... modifier; they are broadly divided into three categories based on critical information provided by the analyses. Chemical Nature Organic and inorganic surface modifiers can be characterized by using spectroscopy (ultraviolet-visible, infrared, nuclear magnetic resonance) and x-ray based (energy...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006942
EISBN: 978-1-62708-395-9
... if the correct material was used, or if outside factors, such as chemical interaction or thermal exposure, may have played a role in the material failure. Additional chemical and physical analysis techniques, such as gas chromatography mass spectroscopy (GC-MS), x-ray fluorescence (XRF), nuclear magnetic...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003553
EISBN: 978-1-62708-180-1
... generally arise from the rotary or reciprocating motion of mechanical devices, either from normal operation or from abnormal effects, such as vibration and resonance. Other major sources of cyclic stresses in service are fluid-flow effects, including the von Karman effect and cavitation...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.9781627083959
EISBN: 978-1-62708-395-9
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006866
EISBN: 978-1-62708-395-9
... breakdown products from the respective polymer. Figure 2 is an example of a HPLC analysis after microbial degradation of PET. More sophisticated techniques include mass and nuclear magnetic resonance spectroscopic analyses. In addition, attenuated total reflectance Fourier transform infrared spectroscopy...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
... of increasing influence on ductile behavior with highest ductility at the top and increasing influence toward brittle behavior at the bottom are: Influence of electronic bonding (most to least ductile): Influence of electronic bonding (most to least ductile): Metallic bonds Resonating covalent bonds...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
...) Metallic bonds Resonating covalent bonds Ionic bonds Covalent, van der Waals bonds Covalent bonds Influence of crystal structure (most to least ductile) Close-packed face-centered cubic Body-centered cubic Hexagonal close-packed. Note: The relative ranking of ductility...