A series of novel fluorinated crosslinkable poly(phthalazinone ether)s, bearing tetrafluorostyrene groups (FSt-FPPEs), have been prepared by polycondensation. The structures were identified using 1H-NMR and infrared spectroscopy measurements. The resulting polymers could be thermally crosslinked either at 160 °C in the presence of a free radical initiator dicumyl peroxide under vacuum or at 280 °C in the absence of any initiator under vacuum. The refractive indices of the crosslinked polymers could be well controlled over a wide range; crosslinked polymers also show low optical losses at 1550 nm. These results indicate that the application of FSt-FPPE in the field of optical waveguide seems feasible and promising.
- Guanghui Li
- Jinyan Wang
- Mingshan Zhao
