Physical Polymer
B.Pourabbas
Faculty of Polymer Eng.
Sahand University of Tech.
pourabas@sut.ac.ir
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What We Study?
1. 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
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Rubber Elasticity
Rubber-glass transitions
Yielding
Viscoelasticity
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What We Study?
2. The basic concepts and features which the
physical properties themselves depends on.
• Chain Structure
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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?
3. 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:
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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
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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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Let’s Get Started
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Chain Configuration
 Polymer chains have three basic properties
1. The Molecular Weight,
2. The conformation of the chain in the space,
3. The configuration of the chain
(microstructures),
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Examples of Configurations and
Conformations
1. Head to tail and head to head
configuration
2. 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
Chiral Center
Units
1. Chiral Centers
2. Tacticity in Polymers
isotactic
3. Optical Isomerism
4. Geometric Isomerism
5. Substitutional Isomerism
syndiotactic
atactic
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Meso And Racemic
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Common Types of Copolymers
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5.
Unspecified Copolymers
Statistical Copolymers
Random Copolymers
Alternating Copolymers
Periodic Copolymers
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Multi Component Polymers
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Block Copolymers
Graft Copolymers
AB-Cross-Linked Copolymers
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
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