Thermal Analysis (TA) has become an indispensable family of analytical techniques in the polymer research. The increased importance of these techniques can be seen as the result of three more or less parallel developments:
• a tempestuous development of TA measuring techniques in combination with a high degree of automation,
• the strongly increased understanding of the underlaying theory and,
• the increasing knowledge of the relation between the polymers' chemical structure and their physical properties.
These areas are still in their developmental stages, especially the third area. The increasing knowledge of the dependence of physical properties on chemical structure just accentuated more and more the need for accurate thermoanalytical measurements, and this knowledge is very important for the first stages of the development of new polymeric systems. Besides, the contribution of TA remains necessary for the technical and commercial development of such a new polymer system. The use of the various TA techniques in these processes is described in this book in nine chapters, while chapter ten illustrates the information obtained about different polymers during special case studies.
This book illustrates in this way, applications of a wide variety of TA techniques whilst it is written from a materials characterisation rather than from a TA point of view with attention being paid to the chemical structure/physical properties correlations.
For those who work in the thermal analysis area in the context of polymer research.
Preface. Acknowledgements. Chapter 1. Differential Scanning Calorimetry. DSC calibration and stability. The Tg-value determination. Melting and recrystallisation determinations. The Tg-value of BR and SSBR rubbers. The Tg-value of BR and SSBR rubbers after blending and oil-extension. Additives acting as nucleating agents for PP. Annealing experiments with i-PP. Crystallisation in poly(1-olefine)s. The determination of the cure conditions of a powder coating system. Reactions of model compounds studied by DSC. DSC modification for the delta-Hvap.25 determination. Results of delta-Hvap.25 determinations by DSC. Chapter 2. Thermogravimetrical Analysis. The non-isothermal thermal stability determination. The isothermal thermal stability determination. A 'plastic wrapped' TGA. TG analysis of a MgCl2-supported, TiCl4/DIBP catalyst. Chapter 3. Thermodilatometry. The l.e.c. determination of filled polymers. Shrinkage of a PK terpolymer and Nylon 6.6 due to moisture loss. The volume dilatometer. The volume dilatometer measuring procedure. Isothermal crystallisation of IR rubbers. Chapter 4. Dynamic Mechanical Analysis. DMA analysis of PP/C2C3 rubber blends. Tg-value determination of aged, rigid PU foams by DMA. Ultra-sonic measurement equipment. Results of ultra-sonic measurements on car-tyre rubbers. Chapter 5. Thermo-electrometry. Dc properties of polymers. Ac properties of polymers. The ac and dc measuring system. Ac and dc properties of a cured resin system. Time/temperature superposition of dielectric results. The dielectric constant of rigid PU foam. Influence of moisture on the dielectric properties of resin castings and laminates. Effect of seawater and cargo on the electrical properties of a tankcoating system. The determination of the Ki-value of a PVC cable insulation. Electrostatic safety criteria. Dc properties of experimental epoxy
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- © Elsevier Science 2001
- 21st May 2001
- Elsevier Science
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