| 초록 |
In this work, a transparent, and highly refractive poly(phenylene thioether ether)s (PPTEs) containing a high molar refraction and low molar volume unit such as sulfur atom in the polymer chain have been developed. The new aromatic diol containing sulfur atom was synthesized through the aromatic substitution reaction. The characterization of new aromatic diol was measured by 1H, 13C NMR, FT-IR. The PPTEs derived from diol containing sulfur atom was prepared by aromatic nucleophilic substitution polycondensation with several organic dihalogen compounds, such as 2,6-difluorobenzonitrile, 4,6-dichloro-2-(methylthio) pyrimidine. The PPTEs were analyzed optical properties by UV-Vis spectra and prism coupler and thermal properties measured by TGA, DSC and DMA. The polymer exhibited high thermal stabilities such as a glass transition temperature (＞153 oC), and a 5% weight loss temperature (＞344 oC) under nitrogen. The optical transmittance of the polymers at 450 nm is higher than 80% and all of polymers are exhibited a high refractive index (＞1.7). This polymer are promising candidate for optical application. |
