CAJ | 학술논문

利用季胺盐对氧化石墨进行有机化来改善氧化石墨层间的化学环境和扩大其层间距离.再将环状芳香双硫醚化合物插层到其层间.后经层间的环状芳香双硫醚化合物原位热开环聚合,合成了石墨片层剥离分散于聚合物基体中的聚芳双硫醚/石墨纳米复合材料.XRD及TEM均证明了无机片层在聚合物基体中呈剥离分散状态.电导率测试表明所合成的纳米复合材料的电导率较氧化石墨提高了近5个数量级.
이용계알염대양화석묵진행유궤화래개선양화석묵층간적화학배경화확대기층간거리.재장배상방향쌍류미화합물삽층도기층간.후경층간적배상방향쌍류미화합물원위열개배취합,합성료석묵편층박리분산우취합물기체중적취방쌍류미/석묵납미복합재료.XRD급TEM균증명료무궤편층재취합물기체중정박리분산상태.전도솔측시표명소합성적납미복합재료적전도솔교양화석묵제고료근5개수량급.
An exfoliated poly(4,4′-oxybis(benzene)disulfide)/graphite nanocomposite was prepared by using cyclo(4,4′-oxybis(benzene)disulfide) oligomers and hexadecyltrimethylammonium bromide exchanged graphite oxide. The nanocomposites were fabricated in two steps. First, the cyclo(4,4′-oxybis(benzene)disulfide) oligomer was used to swell and exfoliate organo-VMT to afford cyclo(4,4′-oxybis(benzene)disulfide)/graphite oxide nanocomposite precursor. Subsequently, the exfoliated POBDS/graphite nanocomposite can be made via in situ and instant melt ring opening polymerization of the precursor. The nano scale dispersion of graphite layers within the polymer was confirmed by both the X-ray diffraction patterns and TEM examinations. According to the conductivity test, the conductivity of the final poly(arylene disulfide)/graphite nanocomposite was increased by about 5 orders of magnitude compared with GO.