| 초록 |
The introduction of substituents with a high molar refraction and low molar volume such as sulfur atom increases the refractive indices of the polymers. In this work, 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 polymer were derived from diol containing sulfur atom and several dihalogen compound such as 2,6-difluorobenzonitrile, 4,6-dichloro-2-(methylthio)pyrimidine by polycondensation. The polymer were analyzed thermal properties by TGA, DSC, and DMA and optical properties measured by UV-Vis spectra and prism coupler. The polymer exhibited good thermal properties such as the 5% weight loss temperature (T5%) in range of 343-389 °C and the glass transition temperature (Tg) in range of 153-175 °C. 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. |
