以SPS为模板制备水溶性导电PANI/SPS复合物的研究进展

Research Progress in Preparation of Water-Soluble Conducting Complex of PANI and SPS Using SPS as a Template

水溶性聚苯胺(PANI)是目前导电高分子研究的热点之一。详细介绍了近十年来,以磺化聚苯乙烯(SPS)为模板制备水溶性导电PANI/SPS复合物的发展状况。合成水溶性导电聚苯胺过程强烈依赖于反应介质的pH值,采用SPS为模板既能提供低pH值环境、促进头-尾对位聚合,又能提供抗衡离子以掺杂苯胺,保持其水溶性,改善其加工性能。在过去的研究历程中,研究者采用了辣根过氧化酶(Horseradish peroxidase,HRP)、漆酶(Laccase)、棕榈树过氧化酶(Palm tree peroxidase)、血红蛋白(Hemoglobin,Hb)、过氧化氢和四(对位磺化苯酚)卟啉铁(Ⅲ)盐(FeⅢTPPS)、水溶性四磺酸化酞菁过渡金属(TSPc)(如铁、钴、锰酞菁)为催化剂合成了水溶性导电PANI/SPS复合物。比较发现,HRP适合于酸性较弱的环境下PANI/SPS复合物的合成,而其它的酶催化体系则可以在酸性较强的环境下催化合成PANI/SPS复合物。

Currently, water-soluble polyaniline （PANI） is one of the hot topics for conducting polymer research. In this paper, the research progress in preparation of water-soluble conducting complex of PANI and sulfonated polystyrene （SPS） which is used as a template is reviewed. The processing of polymerizing conducting polyaniline strongly depends on the pH value. The SPS template provides a local low pH value environment and preferentially aligns the monomers to promote the desired head-to-tail coupling; it also provides counterion for doping PANI and maintains the water solubility to improve the processability of the synthesized PANI. In the literatures, many catalysts such as horseradish peroxidase （HRP）, laccase, palm tree peroxidase, hemoglobin （Hb）, hydrogen peroxide and iron （Ⅲ） tetrasulfonated tetraphenyl porphyrin（Fe^Ⅲ TPPS）, and water-soluble transition-metal tetrasulfonated phthalocyanine （TSPc） （Fe-TSPc, Mn-TSPc, Co-TSPc） are used for synthesis of water-soluble conducting complexes of PANI and SPS. By comparison, it is found that it is more suitable to use HRP in a mild acid environment and other enzymes in a strong acid environment.