The optical properties of a series of high refractive index polyphosphazenes were investigated. The wavelength-dependent change in refractive index (optical dispersion) associated with two selected polymers was examined using variable-angle spectroscopic ellipsometry. Values of the Abbé number for these polymers were calculated. These systems have a VD = 20-25, which compares closely with other organic polymers with similar refractive indices. Calculation of the molar refractivity (Rm) associated with the [N=P] repeat unit structure yielded a value of Rm[N=P] = 14.36 cm3/mol This value is compared with other polymer repeat unit structures. The comparison indicates that the [N=P] repeat unit has a linear polarizability close to that found in conjugated [C=C] bonds.
All Science Journal Classification (ASJC) codes
- Organic Chemistry
- Polymers and Plastics
- Inorganic Chemistry
- Materials Chemistry