烷基苯磺酸掺杂聚苯胺的特征及可溶性

以烷基苯磺酸（ＡＢＳＡ）为反离子质子酸，研究了大阴离子酸掺杂苯胺（ＰＡｎ）的过程及其可溶性，表现溶解度和真实溶解度随溶剂和处理温度的变化表明大阴离子酸掺杂的特殊性；受分子链的运动和聚合物边间距影响较大，可溶部分的ＵＶ－Ｖｉｓ光谱的结果进一步证实这一结论，ＦＴ－ＩＲ对ＰＡｎ和ＡＢＳＡ混合物在氯仿中的可溶物和不可溶物的结构分析表明掺杂过程发生的氧化还原反应对溶解不利，而ＡＢＳＡ中的烷基直链结构对溶解有

CHARACTERIZATION AND SOLUBILITY OF POLYANILINE DOPED BY ALKYL BENEZOSULFONIC ACID

The process in which polyaniline(PAn) was doped by large anionic acid such as alkyl benezosulfonic acid(ABSA) and the solubility of the mixture were studied. The dependence of apparent solubility and real solubility of PAn doped by ABSA on solvent and operated temperature exhibited the specific characteristics of large anionic acid doping PAn.i.e.,it was influneced by movement of molecular chains and distance between polymer chains.This was further proved by UV Vis spcctra.The structural analysis of soluble and insoluble fractions from PAn and ABSA mixture in chloroform by FT IR spectra demonstrated that the redox reaction occurred during the process was disadvangeous to the improvement of solubility of PAn doped by ABSA, whereas the prescnce of n alkyl in ABSA was advantagcous to it.The thermal stability of the mixture and complex of PAn and ABSA was also studied by DSC.