Polymer Relaxation.

Intro -- POLYMER RELAXATION -- POLYMER SCIENCE AND TECHNOLOGY -- POLYMER RELAXATION -- Library of Congress Cataloging-in-Publication Data -- CONTENTS -- PREFACE -- CHAPTER 2. POLYMERS AT SOLID INTERFACES:NUCLEAR MAGNETIC RESONANCE RELAXATIONAPPROACH -- ABSTRACT -- INTRODUCTION -- CHOICE OF A MODEL SYSTEM AND SUITABLE TECHNIQUE -- An Interesting Interface: Poly(Ethylene Oxide) Grafted on Silica -- Nuclear Magnetic Resonance Technique -- EFFECT OF THE DIPOLAR INTERACTION FOR PEO ANDPRINCIPLES OF NMR APPROACHES -- Effect of the Molecular Weight and Relaxation Analysis -- Existence of the Residual Dipolar Interaction -- PRINCIPLES OF NMR APPROACHES -- Transverse Magnetic Interaction -- Effect of the Dipolar Interaction for PEO -- STATIC CONFORMATION -- Influence of the Grafting Ratio -- Influence of the Grafting Ratio on the Relaxation Times -- Interpretation of NMR Experiments in Terms of Organization of the GraftedLayers -- INFLUENCE OF THE TEMPERATURE -- Existence of the Temperature Transition -- Behaviour at Low and High Temperature -- INVESTIGATION OF THE INFLUENCE OF THE SOLVENT ON THEMOTION AND CONFORMATION -- Influence of the Grafting Ratio -- Effect of Molecular Weight -- Influence of the Temperature: Evidence for a Transition Temperature -- INVESTIGATION OF RESIDUAL DIPOLAR INTERACTION -- Existence of a Residual Dipolar Interaction -- High Resolution in PEO Grafted on Silica: Illustrative Experiments -- Measure of Residual Dipolar Interaction -- Influence of the Grafting Ratio -- Evolution of the Pseudo Solid Effect with Temperature -- THE DEUTERIUM NMR APPROACH OF THE ANISOTROPY -- Effect of the Grafting Ratio -- Influence of the Temperature -- INVESTIGATION OF LOCAL CHAIN DYNAMICS -- MAS TECHNIQUE STUDY -- Rotation Effect and Limit Linewidth Study -- Influence of the Grafting Ratios: Determination of the Correlation Times.

SPIN LATTICE RELAXATION TIME STUDY -- COMPARISON OF THE CORRELATION TIMES -- CONCLUSION -- REFERENCES -- CHAPTER 3. ELECTROCHEMICAL RELAXATION STUDIES OFPOLYTHIOPHENES -- ABSTRACT -- 1. INTRODUCTION -- 2. EXPERIMENTAL -- 2.1. Monomers, Supporting Electrolytes and Solvents -- 2.2. Electrosynthesis -- 2.3. Electrochemical Techniques -- 2.3.1. Potential- Scan Techniques in Stationary Solution -- 2.3.2. Galvanostatic (Controlled-Current) and Potentiostatic (Controlled-Potential)Technique -- 2.4. Instrumentation -- 3. RESULTS AND DISCUSSION -- 3.1. Electrosynthesis of Polythiophenes -- 3.1.1. Polymerization Techniques and Monomer Concentration -- 3.1.2. Effect of Solvent -- 3.1.3. Effect of Supporting Electrolyte -- 3.1.4. Effect of Temperature -- 3.2. Relaxation Measurements for Plythiophenes -- 3.2.1. Effect of Potential Sequence -- 3.2.2. Effect of Current Density -- 3.2.3. Effect of Electrolyte -- 3.2.4. Effect of Solvent -- 3.2.5. Effect of Temperature -- 3.3. Electrosynthesis of poly(Bromothiophene-co-thiophene)[poly(BrT-co-T)] -- 3.3.1. Polymerization Techniques and Monomer Concentration -- 3.3.2. Effect of Solvent and Supporting Electrolyte -- 3.3.3. Effect of Temperature -- 3.4. Relaxation Measurements of the Copolymer -- 3.4.1. Technique Effect -- 3.4.2. Effect of Concentration -- 3.4.3. Effect of Solvent -- 3.4.4. Effect of Temperature -- CONCLUSION -- REFERENCES -- CHAPTER 4. DIELECTRIC RELAXATION OF ONION-LIKE CARBONBASED POLYMERS COMPOSITES -- ABSTRACT -- 1. INTRODUCTION -- 2. EXPERIMENTAL -- 3. MODELING -- 4. RESULTS AND DISCUSSION -- 4.1. Phase Transitions in OLC Based Composites -- 4.2. Dielectric Permittivity of OLC Based Composites -- 4.3. Dielectric Permittivity Dispersion in OLC Based Composites -- 4.4. Electrical Conductivity in OLC Based Composites -- CONCLUSION -- ACKNOWLEDGMENTS -- REFERENCES.

CHAPTER 5. DYNAMIC INTERFACIAL BEHAVIORS OF POLYMERSOLUTIONS BY INTERFACIAL TENSION RELAXATIONMEASUREMENTS -- ABSTRACT -- 1. INTRODUCTION -- 2. DILATIONAL RHEOLOGICAL DATA: PRINCIPLES AND METHODS -- 2.1. Principles -- 2.2. Methods -- 2.3. Interfacial Dilational Rheological Parameters Obtained by InterfacialTension Relaxation Measurements -- 2.3.1. Contributions and Characteristic Times of Relaxation Processes -- 2.3.2. Dilational Elasticity and Viscosity Component Calculated by Fourier Transform -- 2.3.3. Gibbs Elasticity -- 2.3.4. Cole-Cole Plots -- 3. INTERFACIAL TENSION RELAXATION MEASUREMENTS OFPOLYMER SOLUTIONS -- 3.1. Partially Hydrolyzed Polyacrylamide Solutions -- 3.2. Hydrophobically Modified Polyacrylamide Solutions -- 3.2.1. P(AM/POEA) Solutions -- 3.2.2. P(AM/2-EHA) Solutions -- 3.2.3. Commercial HMPAM Solutions -- 4. POLYMER/SURFACTANT SOLUTIONS -- 4.1. HPAM/Surfactant Solutions -- 4.2. HMPAM/Surfactant Solutions -- 4.2.1. HMPAM/Anionic Surfactant Solutions -- 4.2.2. HMPAM/Nonionic Surfactant Solutions -- 4.2.3. HMPAM/Cationic Surfactant Solutions -- CONCLUSION -- ACKNOWLEDGMENT -- REFERENCES -- CHAPTER 6. RECENT PLASTICIZERS AND CONDUCTIVITYANOMALIES IN HOMOGENEOUS ANTISTATICTRANSPARENT PLASTICIZED PVC FILMS -- ABSTRACT -- INTRODUCTION -- ELECTROPHYSICAL ANOMALIES IN PLASTICIZED ANTISTATICPVC FILMS -- THE EFFECTS OF RESISTIVE SWITCHING INANTI-STATIC PVC FILMS -- ELECTRON-MOLECULAR CONDUCTIVITY MODEL FORPLASTICIZED PVC COMPOUNDS -- CONCLUSION -- REFERENCES -- INDEX.

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