New class of polymers with ultralow dielectric loss, with potential to power reduced interference/ distortion beyond-5G telecommunications

https://www.eurekalert.org/news-releases/1100465

"replaces sulfur with oxygen in dielectric poly(2,6-dimethyl-1,4-phenylene oxide) insulation... offers best balance of 2 key traits: (1) low dielectric constant, improved with higher polarizability/ smaller dipole moment of carbon–sulfur compared to carbon–oxygen bond, (2) low almost constant dissipation factor across wide frequency range, lowest among all polymers at 80 GHz, due to: increased intermolecular interactions reducing molecular mobility, higher molecular rotation resistance, strong thermal stability"