1. Polymer Chemistry CHEM 3430 1

2. List of Topics No. of Weeks Contact Hours Introduction to polymer chemistry, definitions and types of polymeric materials. Homo and copolymers. 12 Classifications of polymers: natural and synthetic polymers, linear, branched and cross-linked polymers thermoplastics and thermosets. 12 Methods of polymerization (condensation, Free radical, Cationic and anionic) 12 Mechanism of polymerizations. 12 Coordination polymerization, Stereo regular polymer Mechanism and kinetics of coordination polymerization. 24 Molecular weight and molecular weight determination. 12 Mechanical and thermal properties of polymers. 24 Methods of petrochemical production 12 Chemistry of industrial fibers 12 Technology in manufacturing polyethylene's – Polystyrenes – PVC and natural rubber 36 2

3. Grading Assessment task (e.g. essay, test, group project, examination, speech, oral presentation, etc.) Week DueProportion of Total Assessment Mid term I6 th week15% Mid term II11 th week15% Class discussion During the entire course 3% Participation and attendance During the entire course 2% Quizzes During the entire course 5% Group work During the entire course 5% Assignment and presentation From 2 nd to 14 th week 5% Final written Exam at the end of semester. By the end of the semester 50% 3

4. List Recommended Textbooks and Reference Material (Journals, Reports, etc) 1. "Polymer Chemistry: The Basic Concepts", Paul C. Hiemenz. 2. Polymer Synthesis: Theory and Practice: Fundamentals, Methods, Experiments By Dietrich Braun, Harald Cherdron, Matthias Rehahn, H. Ritter, B. Voit Published by Springer, 2005. 4

5. What is polymer Chemistry Chemistry of large molecules ( macromolecules). “Macromolecules” : molecules existed as a result of covalently linked smaller units, and possessed unique physical and chemical properties. Polymer is macromolecules, but macromolecules may not be a polymer. 5

6. What is polymer Polymer is compound consisting of long-chain molecules, each molecule made up of 1000- 10 000 repeating units connected together. The word polymer is Greek words poly: many, and meros (reduced to mer: part. Molar mass ranges from 10 4 - 10 6 g/g-mole. Most polymers are based on carbon and are therefore considered organic compounds. 6

7. 7 Polymeric Materials, Repeating units polyethylene ethylene

8. 8 Polymeric Materials, Repeating units

9. Typical Values of DP and MW for Selected Polymers 9

10. : polyethylene of chain length n ; (2b) concise notation for depicting the polymer structure of chain length n 10 Polymeric Materials & Notation

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12. 12 Plastics and the environment

13. 13 Historical Background

14. Classification of Polymers 1. By Source: 14

15. Classification of Polymer 2. by Skeletal Structure skeletal structures Polymers can exist with various skeletal structures - such as: 1.Linear polymers. 2. Branched polymers. 3. cross-linked polymers. 4. Network polymers. 5. Dendiemer Polymer 15

16. Classification of Polymer by Structure: Linear structure : chain-like structure Characteristic of thermoplastic polymers. 16 Linear

17. Polymer Structure Branched structure that includes side branches along the chain, also found in thermoplastic polymers. 17

18. Polymer Structure Loosely Cross-linked: bonding occurs between branches and other molecules at certain Connection points. As in an elastomer 18 Loosely Cross- Linked

19. Tightly cross-linked or network structure - in effect, the entire mass is one gigantic macromolecule. As in a thermoset. 19 Polymer Structure network structure

20. Polymer Structure 20 Dendrimer Polymer: from the Greek word means tree- like polymer, dendrimer structure has: 1. Symmetric around the core. 2. Spherical three-dimensional morphology. Dendrimer Structure

21. Classification of Polymer: 3. by Composition 21

22. Nomenclature of Polymer 22

23. Types of Polymers Polymers can be separated into plastics and rubbers. It can be classified into the following three categories: 1. Thermoplastic polymers 2. Thermosetting polymer plastics 3. Elastomers  rubbers 23

24. Polymer Classification Polymers are commonly classified as follows: 24 Polymers Elastomers Thermosets Thermoplastics Crystalline Amorphous plastics rubbers

25. Effect of Branching on Properties Thermoplastic polymers always possess linear or branched structures, or a mixture of the two - If Branches increase among the molecules, the polymer becomes: - Stronger in the solid state. - More viscous at a given temperature in the plastic or liquid state.. 25