Degree of Polymerization | Molecular Weight Calculations | Molecular Weight Definitions
Poiseuille's Law | Mark Houwink Equation
Enthalpy Change of Mixing Entropy Change of Mixing | Gibbs Free Energy of Mixing
Bulk Modulus | Young's Modulus ...
Random Coil |
50mer polymer

Introduction

[Hiemenz-60] describes a "good solvent" as a solvent which increases the dimensions (i.e. the chain expansion).

Lowering the temperature reduces the "goodness" of a solvent.

Changes in the coil dimension effect viscosity.

Coil dimension also relates to the Mark-Houwink equation where the two extremes are:

  1. the sphere model
  2. the rigid rod model

[Hiemenz-60] describes the Flory Temperature as the temperature at which the "poorness" of the solvent exactly compensates for the excluded volume effect.