
Explore how polymer properties, including melting point and mechanical strength, rise with molecular weight due to chain entanglement, while processing becomes harder at very high weights.
Explore how molecular weight depends on monomer conversion in step growth and chain growth polymerizations, using examples like polyamide and polyolefin, and distinguish initiation, propagation, and termination mechanisms.
Explore how crystallinity governs polymer morphology by analyzing specific volume versus temperature, illustrating crystallization and solidification in amorphous and semicrystalline polymers, and highlighting tg and tm effects on properties.
Explore how polymer modulus changes with temperature, comparing amorphous and semicrystalline forms, and examining glass transition and melting temperatures, the rubbery plateau, and flow in linear and cross linked polymers.
Explore how polymer viscosity varies with shear rate, distinguishing Newtonian and non-Newtonian behavior, and explain shear thinning (pseudoplastic), zero shear viscosity, and factors like temperature and molecular weight.
Analyze the tensile stress–strain behavior of polystyrene, polyethylene, and natural rubber, identifying elastic and plastic regions, yield stress, and elongation at break; relate curve area to a key polymer property.
Explore polymer fatigue under cyclic loading, using S-N (Vogler) curves to relate dynamic stress to cycles to failure, while considering crack initiation, propagation, endurance limits, and crosslink effects.
Study the thermal stability of polymers using thermogravimetric analysis to measure weight change and degradation under different atmospheres. Compare polyethylene, polypropylene, and PTFE to see how structure influences performance.
Examine how vulcanization creates a three-dimensional rubber network, and how cross-link density influences elasticity, stiffness, toughness, hysteresis, and friction in optimized formulations.
Explore how filler level and percolation threshold govern polymeric composites, with conductivity jumps signaling network formation and reinforcing effects from fillers like calcium carbonate and carbon black.
Welcome to the polymer world. In this course, we are supposed to check 10 basic curves in polymer science to review the polymeric basic concepts fast and simply. We try to make sense of polymer by using schematic images and animations. Analyzing the 10 basic curves is an opportunity to investigate polymerization methods, polymer chemistry, polymer structure, morphology, and polymer rheology. Also, the physical, thermal, and mechanical properties of polymers are discussed in the course by these curves. You get familiar with important and practical polymers during the course. Also, crystallization, mechanical analysis, crosslinking process, and percolation theory are noted simply. This course makes you understand polymer basics more deeply…
The course syllabus is:
1-Macromolecules (Molecular Weight)
2-Polymerization Methods (Step and Chain Polymerization)
3-Polymer Crystallinity (Semicrystalline and Amorphous)
4-Polymer Thermal Transitions (Glass Transition Temperature and Melting Temperature)
5-The Polymer Rheology (Newtonian and Non-Newtonian Fluid)
6-The Mechanical Properties (Tensile Analysis)
7-The Mechanical Fatigue (Mechanical Fatigue Test)
8-The Thermal Stability (TGA and DSC Analysis)
9-The Crosslinking (The Vulcanization Process)
10-The Percolation Theory (Polymeric Composite)
We have designed a question or practice for you at the end of each session. These practices help you to learn interesting points while your research ability improves.