Physical polymer
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Physical Polymer. B.Pourabbas Faculty of Polymer Eng. Sahand University of Tech. [email protected] 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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Physical polymer

Physical Polymer

B.Pourabbas

Faculty of Polymer Eng.

Sahand University of Tech.

[email protected]


What we study

What We Study?

  • Physical Aspects of the Chain Properties:

  • Such as:

    • Thermal Behavior:

      • Melting,

      • Tg,

      • Other transitions and so on.


What we study1

What We Study?

  • Solubility

    • The solvent-polymer interactions

    • The effect of conditions: temperature and pressure Chain structure and so on


What we study2

What We Study?

  • Surface and interface properties

    • Surface dynamics

    • Surface energies


What we study3

What We Study?

  • Mechanical Properties

    • Rubber Elasticity

    • Rubber-glass transitions

    • Yielding

    • Viscoelasticity


What we study4

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


What we study5

What We Study?

  • The size of the chains

    • Statistically defined molecular weights

    • Width of polydispersity


What we study6

What We Study?

  • The methods for measurement of the properties:

  • Chemical Methods:

    • Elemental Analysis

    • Functional Group Analysis

    • Selective Degradation


What we study7

What We Study?

  • Physical Methods:

    • NMR

    • IR & Raman

    • UV-visible

    • XPS

    • XRD


Where from we study

Where From We Study?

  • Introduction to PHYSICAL POLYMER SCIENCE; By: Sperling (pdf file is available)


Where from we study1

Where From We Study?

2. Introduction to Polymer Physics


Where from we study2

Where From We Study?

3. Polymer Physics


Where from we study3

Where From We Study?

4. Polymer Physics


Physical polymer

All the presentation files will be in your reach.


Your class activities

Your Class Activities

  • Being in the class

  • Homeworks

  • Questions planed

  • Projects and presentations

  • Mid-Term exams (Several)

  • Final Exam


Anythingelse

Anythingelse?


Let s get started

Let’s Get Started


Chain configuration

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),


Examples of configurations and conformations

Examples of Configurations and Conformations

  • Head to tail and head to head configuration

  • Trans-Gauche Conformation


Chemical methods of determining microstructures

Chemical Methods of Determining Microstructures


Physical methods of determining polymer chain microstructure

Physical Methods of Determining Polymer Chain Microstructure


Stereo chemistry of repeating units

Chiral Center

isotactic

syndiotactic

atactic

Stereo Chemistry of Repeating Units

  • Chiral Centers

  • Tacticity in Polymers

  • Optical Isomerism

  • Geometric Isomerism

  • Substitutional Isomerism


Meso and racemic

Meso And Racemic


Common types of copolymers

Common Types of Copolymers

  • Unspecified Copolymers

  • Statistical Copolymers

  • Random Copolymers

  • Alternating Copolymers

  • Periodic Copolymers


Multi component polymers

Multi Component Polymers

  • Block Copolymers

  • Graft Copolymers

  • AB-Cross-Linked Copolymers

  • Interpenetrating Polymer Networks


Energy and conformational states in polymers

Energy and Conformational States in Polymers


Example microstructure of polystyrene

Example: Microstructure of Polystyrene


Questions

Questions.

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


End of chapter 1

End of Chapter 1


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