Synthesis, characterization and optical properties of cross-linkable poly(phthalazinone ether ketone sulfone)
Synthesis, characterization and optical properties of cross-linkable poly(phthalazinone ether ketone sulfone)
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DOI：
10.1016/j.polymer.2007.12.015
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发表时间：
2008-02
期刊：
影响因子：
4.6
通讯作者：
Yuan Song;Jinyan Wang;Guanghui Li;Qingmin Sun;X. Jian;J. Teng;Hongbo Zhang
中科院分区：
文献类型：
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作者：
Yuan Song;Jinyan Wang;Guanghui Li;Qingmin Sun;X. Jian;J. Teng;Hongbo Zhang
通过共缩聚反应制备了光波导用的含四氟苯乙烯基团的可交联性聚芳醚酮砜(PPEKS-FST)。得到的非晶态聚合物在室温下在一些常见的极性有机溶剂(如N，N‘-二甲基乙酰胺、N-甲基-2-吡咯烷酮、氯仿)中表现出良好的溶解性，并且可以很容易地旋涂成光学质量良好的薄膜。玻璃化转变温度(Tg)和1%失重温度(1%Td)分别为261℃和494℃，热交联后可进一步提高31℃和14℃。该聚合物薄膜具有高折射率(∼1.65，TE模)、高热光系数(dN/dt)(−1.455×10−4/°C，TE模)、低光学损耗(1310 nm处小于0.24dB/cm)和相对低的双折射(∼0.007)。
Cross-linkable poly(phthalazinone ether ketone sulfone) bearing tetrafluorostyrene groups (PPEKS–FSt) has been prepared by copolycondensation reaction for optical waveguide applications. The resulting amorphous polymer exhibits good solubility in some common polar organic solvents (e.g., N,N′-dimethylacetamide, N-methyl-2-pyrrolidinone, chloroform) at room temperature, and can be easily spin-coated into thin films with good optical quality. The glass transition temperature (Tg) and the temperature of 1% weight loss (1% Td) are 261°C and 494°C, respectively, which could be further increased by 31°C and 14°C upon thermal cross-linking. The cross-linked polymer thin films exhibit high refractive index (∼1.65, TE mode), high thermo-optic coefficient value (dn/dT) (−1.455×10−4/°C, TE mode), low optical loss (less than 0.24dB/cm at 1310nm) and relatively low birefringence (∼0.007).