Effects of the form birefringence on flow birefringence of polymer solutions in semidilute region were studied by using polystyrenes in bromobenzene and toluene, which are matching and non-matching solvents, respectively. It was found that the contribution of the form birefringence rapidly decreases when the degree of coil-overlapping becomes higher than the crossover point from dilute to semidilute regions for thermodynamic properties.
All Science Journal Classification (ASJC) codes
- Polymers and Plastics
- Materials Chemistry