MatSE 443
Introduction to the Materials Science of Polymers
Penn State University
Introduction to the Materials Science of Polymers
Penn State University
PC Painter and MM Coleman Fundamentals of Polymer Science (2nd Edition, CRC Press) |
Chapter 10
Concepts that you must know:
- Methods for Molecular Weight Determination: relative vs. absolute methods (definitions), principles of operation for osmometry, light scattering, solution viscometry incl. the various definitions of viscosity given, and SEC (GPC) including the hydrodynamic volume concept.
- Virial expansion: this is the single one equation that you must understand its physical meaning and why/how it is applied in all methods.
- Necessity of Zimm plots, why is the construction of a Zimm plot necessary to estimate a molecular weight from a light scattering experiment?
- Various definitions of viscosity: relative, specific, reduced, and intrinsic viscosity.
- SEC/GPC methods are the most commonly used methods for Mn and Mw enumeration. Thus, you need to understand the principles of operation and calibration, also the concepts of hydrodynamic volume and of the universal calibration curve.