CAJ | 학술논문

以对苯二酚、复合二元酰氯、4-羟基萘偶氮对苯磺酸钠为反应基元，采用溶液缩聚法合成液晶离聚物（LCI）。用红外光谱仪、偏光显微镜、广角X射线衍射仪及热重分析仪对产物进行了分析，结果表明：在波数为1213，1017cm-1处出现了磺酸基团的特征峰，说明离子基团已成功引入到液晶聚合物中，合成了目标产物；LCI的熔点为197℃，相对分子质量为5607，具有热致液晶性，液晶织构为向列型，其清亮点高于分解温度，具有较宽的液晶态温度范围；LCI具有良好的热稳定性，初始分解温度可达296℃，热失重速率仅为0.71%/℃。
이대분이분、복합이원선록、4-간기내우담대분광산납위반응기원，채용용액축취법합성액정리취물（LCI）。용홍외광보의、편광현미경、엄각X사선연사의급열중분석의대산물진행료분석，결과표명：재파수위1213，1017cm-1처출현료광산기단적특정봉，설명리자기단이성공인입도액정취합물중，합성료목표산물；LCI적용점위197℃，상대분자질량위5607，구유열치액정성，액정직구위향렬형，기청량점고우분해온도，구유교관적액정태온도범위；LCI구유량호적열은정성，초시분해온도가체296℃，열실중속솔부위0.71%/℃。
A novel kind of liquid crystalline ionomer (LCI) was synthesized by solution polycon-densation with hydroquinone, dual chloride of acid compound, 4-(4-hydroxy-1-naphthylazo)benzene sulfonic acid sodium as units of participation in the reaction. The LCI was analyzed by Fourier trans-form infrared spectroscopy (FTIR), polarized light microscopy (PLM), wide angle X-ray diffraction (WAXD) and thermogravimetry (TG). The results show that characteristic peaks at 1 213, 1 017 cm-1 demonstrate the sulfonic acid ionic groups has been successfully introduced into the liquid crystal polymer and the target product is prepared. The LCI has melting point of 197 ℃ and relative molecular mass of 5 607. The LCI is a thermotropic liquid crystal with nematic liquid crystal texture. The clearing temperature of the LCI is higher than its decomposition temperature, indicating that the LCI maintains liquid crystal state at a wide range of temperatures. The LCI has excellent thermal stability with the initial decomposition temperature up to 296 ℃ and thermal mass loss rate only 0.71%/℃.