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Physical Polymer

Physical Polymer. B.Pourabbas Faculty of Polymer Eng. Sahand University of Tech. pourabas@sut.ac.ir. What We Study?. Physical Aspects of the Chain Properties: Such as: Thermal Behavior: Melting, Tg , Other transitions and so on. What We Study?. Solubility

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Physical Polymer

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  1. Physical Polymer B.Pourabbas Faculty of Polymer Eng. Sahand University of Tech. pourabas@sut.ac.ir

  2. What We Study? • Physical Aspects of the Chain Properties: • Such as: • Thermal Behavior: • Melting, • Tg, • Other transitions and so on.

  3. What We Study? • Solubility • The solvent-polymer interactions • The effect of conditions: temperature and pressure Chain structure and so on

  4. What We Study? • Surface and interface properties • Surface dynamics • Surface energies

  5. What We Study? • Mechanical Properties • Rubber Elasticity • Rubber-glass transitions • Yielding • Viscoelasticity

  6. What We Study? • The basic concepts and features which the physical properties themselves depends on. • Chain Structure • Liner • Branched • Cross-linked • Co-polymer • Chain Configuration • Chemistry • Crystalinity

  7. What We Study? • The size of the chains • Statistically defined molecular weights • Width of polydispersity

  8. What We Study? • The methods for measurement of the properties: • Chemical Methods: • Elemental Analysis • Functional Group Analysis • Selective Degradation

  9. What We Study? • Physical Methods: • NMR • IR & Raman • UV-visible • XPS • XRD

  10. Where From We Study? • Introduction to PHYSICAL POLYMER SCIENCE; By: Sperling (pdf file is available)

  11. Where From We Study? 2. Introduction to Polymer Physics

  12. Where From We Study? 3. Polymer Physics

  13. Where From We Study? 4. Polymer Physics

  14. All the presentation files will be in your reach.

  15. Your Class Activities • Being in the class • Homeworks • Questions planed • Projects and presentations • Mid-Term exams (Several) • Final Exam

  16. Anythingelse?

  17. Let’s Get Started

  18. Chain Configuration • Polymer chains have three basic properties • The Molecular Weight, • The conformation of the chain in the space, • The configuration of the chain (microstructures),

  19. Examples of Configurations and Conformations • Head to tail and head to head configuration • Trans-Gauche Conformation

  20. Chemical Methods of Determining Microstructures

  21. Physical Methods of Determining Polymer Chain Microstructure

  22. Chiral Center isotactic syndiotactic atactic Stereo Chemistry of Repeating Units • Chiral Centers • Tacticity in Polymers • Optical Isomerism • Geometric Isomerism • Substitutional Isomerism

  23. Meso And Racemic

  24. Common Types of Copolymers • Unspecified Copolymers • Statistical Copolymers • Random Copolymers • Alternating Copolymers • Periodic Copolymers

  25. Multi Component Polymers • Block Copolymers • Graft Copolymers • AB-Cross-Linked Copolymers • Interpenetrating Polymer Networks

  26. Energy and Conformational States in Polymers

  27. Example: Microstructure of Polystyrene

  28. Questions. • Fractal! What is fractal nature. Why polymer chains are fractal in dimension?

  29. End of Chapter 1

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