TOPIC 7. Polymeric materials
TOPIC 7. Polymeric materials (I). Universidad Carlos III de Madrid materials SCIENCE AND ENGINEERING. TOPIC 7. Polymeric materials 1. Introduction Definition General characteristics Historic introduction Polymers: Examples 2. Classification 3. Properties: Structural aspects 4. Solid state Crystallinity Thermal transitions Mechanical behaviour Dpt. materials Sci. and Eng. and Chem. Eng. UC3M Sophia A. Tsipas / Berna Serrano 1. TOPIC 7. Polymeric materials (I). 1. INTRODUCTION: DEFINITION. POLYMER. Organic compound, natural or synthetic , with high molecular weight made of repetitive structural units . Large size chains formed from the covalent union of various monomer units (macromolecule). PLASTIC. 1. Polymer whose fundamental property is plasticity (thermoplastic). It is deformed plastically under the action of pressure andor heat . 2.
Natural, synthetic … CLASSIFICATION According to polymerization mechanism Addition, condensation According to chemical composition Acrylics , vinyls….. According to their behaviour with temperature Thermoplastic Thermosetting According to applications Elastomers, plastics, fibres, adhesives…. According to structure Semicrystalline
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