Physical Polymer

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Physical Polymer

• B.Pourabbas
• Faculty of Polymer Eng.
• Sahand University of Tech.
• pourabas_at_sut.ac.ir

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What We Study?

• Physical Aspects of the Chain Properties
• Such as
• Thermal Behavior
• Melting,
• Tg,
• Other transitions and so on.

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What We Study?

• Solubility
• The solvent-polymer interactions
• The effect of conditions temperature and
  pressure Chain structure and so on

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What We Study?

• Surface and interface properties
• Surface dynamics
• Surface energies

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What We Study?

• Mechanical Properties
• Rubber Elasticity
• Rubber-glass transitions
• Yielding
• Viscoelasticity

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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

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What We Study?

• The size of the chains
• Statistically defined molecular weights
• Width of polydispersity

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What We Study?

• The methods for measurement of the properties
• Chemical Methods
• Elemental Analysis
• Functional Group Analysis
• Selective Degradation

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What We Study?

• Physical Methods
• NMR
• IR Raman
• UV-visible
• XPS
• XRD

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Where From We Study?

1. Introduction to PHYSICAL POLYMER SCIENCE By
   Sperling (pdf file is available)

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Where From We Study?

• 2. Introduction to Polymer Physics

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Where From We Study?

• 3. Polymer Physics

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Where From We Study?

• 4. Polymer Physics

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• All the presentation files will be in your reach.

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Your Class Activities

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

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Anythingelse?
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Lets Get Started
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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),

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Examples of Configurations and Conformations

• Head to tail and head to head configuration
• Trans-Gauche Conformation

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Chemical Methods of Determining Microstructures
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Physical Methods of Determining Polymer Chain
Microstructure
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Stereo Chemistry of Repeating Units

• Chiral Centers
• Tacticity in Polymers
• Optical Isomerism
• Geometric Isomerism
• Substitutional Isomerism

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Meso And Racemic
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Common Types of Copolymers

1. Unspecified Copolymers
2. Statistical Copolymers
3. Random Copolymers
4. Alternating Copolymers
5. Periodic Copolymers

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Multi Component Polymers

1. Block Copolymers
2. Graft Copolymers
3. AB-Cross-Linked Copolymers
4. Interpenetrating Polymer Networks

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Energy and Conformational States in Polymers
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Example Microstructure of Polystyrene
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Questions.

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

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End of Chapter 1