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Update on paramagnetic sensors for polymers and composites research /
This book presents newer applications of paramagnetic sensors for the study of polymer materials structure, microreology and molecular dynamics. Paramagnetic (or spin) sensors have found wide use in structural and dynamic research of condensed media using the spectroscopy of electron paramagnetic re...
| Clasificación: | Libro Electrónico |
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| Autor principal: | |
| Otros Autores: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Shrewsbury :
ISmithers Rapra Publishing,
2013.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- 9781847357755_Front Cover; 9781847357755_Contents; Preface; 1 Electron Paramagnetic Resonance; 1.1 Paramagnetic Substances; 1.2 Resonance Conditions; 1.3 Structure of Electron Paramagnetic Resonance Spectra; 1.4 Parameters of the Lines of Electron Paramagnetic Resonance Spectra; 1.5 Construction of an Electron Paramagnetic Resonance Spectrometer; 1.6 Experimental Procedures; 1.6.1 Standard Samples; 1.7 Appendix; References; 2 Spin Probes and Labels Method; 2.1 Structure and Properties of Stable Nitroxide Radicals; 2.2 EPR Spectra of SNR and Calculation of the Main Parameters.
- 2.2.1 Change of Spectra due to Rotational Dynamics of Stable Nitroxide Radicals2.2.2 Dependence on Particle Size and Viscosity of the Environment for Rotational Correlation Times; 2.2.3 Electron Paramagnetic Resonance Spectra at Anisotropic Rotation of Stable Nitroxide Radicals; 2.2.4 Analyses of the Electron Paramagnetic Resonance Spectra of Stable Nitroxide Radicals in Hetero; References; 3 Study of Interface Layers in Filled Polymers by Paramagnetic Sensors; 3.1 Experimental Procedures; 3.1.1 Covalent Bonding of Nitroxide Radicals with Filler Surface.
- 3.1.2 Nitroxide Radicals Adsorbed on Surfaces3.1.3 Nitroxide Radicals as Spin Probes; 3.2 Factors Determining the Molecular Mobility of Labels Located on the Solid Surface; 3.2.1 Dynamics of Spin Labels in Liquid Media; 3.2.2 Radicals Adsorbed by the Surface; 3.2.3 Role of Structure and Specific Surface of the Filler; 3.3 Application of the Method for Specific Polymer Tasks Solution; 3.3.1 Molecular Dynamics of Interface Layers in Amorphous Polymers; 3.3.2 Criteria of Formation of an Adsorption Layer and Research of its Defects; 3.3.3 Evaluation of the 'Long-range Action'
- 3.3.4 Research of the Curing of Filled Resins3.3.5 Investigation of Selective Adsorption of Macromolecules from Solution; 3.4 Investigation of Crystalline Polymers; 3.4.1 Effect of the Molecular Weight of the Polymer; 3.4.2 Temperature Functions of Molecular Mobility; References; 4 Study of the Adsorption of Macromolecules on Magnetic Nanoparticles; 4.1 General Approach; 4.2 Application of this Method; References; 5 Study of Dispersions of Ferromagnetic Nanoparticles; 5.1 Outline of the Theory of Electron Paramagnetic Resonance Spectra Line Shape.
- 5.2 Features of Electron Paramagnetic Resonance Spectra of Paramagnetic Sensors in Magnetic Dispersi5.2.1 Line Shift; 5.2.2 Line Broadening; 5.2.3 Line Shape; 5.3 Theory of Paramagnetic Sensor Line Shape in the Presence of Extended Magnetic Objects; 5.4 Results of the Research of Magnetic Sols and Gels; References; 6 Arylindandions as Specific Sensors of Shear Strain in Polymers; 6.1 Formation of Arylindandions Free Radicals under Normal Pressure; 6.2 Formation of Arylindandions Free Radicals under High Pressure and Shear Deformation; References.