光交联SbQ/蒙脱土插层复合材料的制备及表征

Synthesis and Characterization of Cross-Linked SbQ/Montmorillonite Composites

将苯乙烯吡啶盐(SbQ)与钠基蒙脱土(Na-MMT)通过阳离子交换的方法制得SbQ/MMT复合材料,并采用紫外光聚合法制备光交联SbQ/MMT复合材料。利用透射电镜和X射线衍射表征了SbQ/MMT复合材料的插层结构,结果表明,SbQ插层蒙脱土后层间距明显增大,X射线衍射显示层间距由1.24nm增大到1.54nm。采用扫描电镜对其形貌进行了分析,紫外分光光度计测试表明随着紫外照射时间延长,SbQ交联程度增大,傅里叶变换红外光谱仪分析说明SbQ已插入蒙脱土片层结构中。

Styrylpyridinium（SbQ）/montmorillonite（MMT）composites were prepared via cationic exchange interactions between styrylpyridinium species（specifically SbQ）and MMT platelets.The SbQ/MMT solutions were irradiated under UV for specific time to obtain the cross-linked SbQ/MMT materials.The analysis of TEM and XRD were used to indicate the microstructure of SbQ/MMT nanocomposites.It shows that the basal spacing is increased from 1.24 nm to 1.53 nm compared with the pristine MMT,which proves that SbQ have interacted with MMT.The structure and morphology of MMT and modified MMT were studied by SEM.UV spectra test demonstrates that with increase of UV irradiation,the cross-linking degree of SbQ increases.Fourier transform infrared spectroscopy was conducted to show that SbQ is inserted into the layers structure of MMT.