软模板法聚苯胺微/纳米管的制备与表征

Synthesis and Characterization of Polyaniline Micro/nanotubes by Soft Template Method

用化学氧化法中的软模板法,选择同时带有磺酸根(—SO3-)和羧酸根(—COO-)的酸性媒介深黄GG(AMY GG)为掺杂剂,制备出了具有一维微/纳米结构的聚苯胺(PANI)。运用扫描电镜(SEM)、透射电镜(TEM)对产物的微观形貌进行了表征。当盐酸和苯胺摩尔比〔n(HCl)/n(ANI)〕分别为0.5、0.75和1时,得到聚苯胺微/纳米管结构。用傅里叶红外光谱(FTIR)和X射线衍射谱图(XRD)对产物的结构进行了表征,可以看出,AMY GG的两个功能基团—COO-和—SO3-已经掺杂到了聚苯胺分子链上;当n(HCl)/n(ANI)=1时所得产物XRD的衍射峰与其摩尔比为0.2、0.5时所得产物衍射峰有明显差别。

Polyaniline （PANI） micro/nanotubes doped with acid mordant yellow GG （AMY GG） with both-COO^- and -SO3^- in the molecule as the soft template were prepared by chemical oxidative polymerization. It was found that micro/nanotubes of PANI were obtained when the mole ratio of HCl and aniline was 0.5 ： 1,0.75 ： 1 and 1 ： 1 separately as detected by SEM and TEM. The molecular structures of PANI micro/nanotubes were characterized by FTIR and XRD. It was found that two functional groups （-SO3^- and -COO^- ） of AMY GG have doped the PANI chain. There was obvious difference between the diffraction peak obtained when n（HCl）：n（ANI） was 1：1 and the diffraction peaks obtained when its molar ratio was 0. 2 or 0. 5.