CAJ | 학술논문

本文以对苯二甲酸、氯化亚砜、1,4-丁二醇为原料制备了一种液晶基元———聚对苯二甲酸丁二醇酯,再与对苯二异氰酸酯、1,3-双(氨丙烷基)四甲基二硅醚反应制备了含醇酯基有机硅聚氨酯液晶聚合物。采用 FT - IR 表征其结构,XRD、TG - DSC 研究了聚合物的液晶性质及热稳定性。将液晶聚合物作为气相色谱填充柱的固定液,测定该色谱柱的相对极性及取代苯位置异构体的色谱分离能力。
본문이대분이갑산、록화아풍、1,4-정이순위원료제비료일충액정기원———취대분이갑산정이순지,재여대분이이청산지、1,3-쌍(안병완기)사갑기이규미반응제비료함순지기유궤규취안지액정취합물。채용 FT - IR 표정기결구,XRD、TG - DSC 연구료취합물적액정성질급열은정성。장액정취합물작위기상색보전충주적고정액,측정해색보주적상대겁성급취대분위치이구체적색보분리능력。
A kind of liquid crystal basic unit which was called poly( butylene terephthalate) was synthesized from terephthalic, thionyl chloride and 1,4 - butanediol. And then the organic silicon polyurethane liquid crystal poly-mer with alcohol ester group was synthesized by 1,4 - phenylene diisocyanate, 3,3'- (1,1,3,3 - tetramethyldisilox-ane - 1,3 - diyl)bispropylamine and poly(butylene terephthalate). The structure of the product was characterized by infrared spectroscopy method. The property of liquid crystal polymer was detected by X - ray diffractometer. The ther-mostability of liquid crystal polymer was studied by thermogravimetry and differential scanning calorimeter respective-ly. The column was filled with the liquid crystal polymer used as gas chromatography stationary liquid. Their relative polar was determined and the packed column was good for separating substituted benzene isomers.