聚苯胺／聚苯乙烯磺酸-聚乙烯醇电致变色膜的制备和表征

Synthesis and characterization of PANI/PSSA-PVA electrochromic film

在水相中,以聚苯乙烯磺酸（PSSA）为模板掺杂剂,聚乙烯醇（PVA）为成膜助剂,苯胺（An）为单体,过硫酸铵（APS）引发合成水溶性导电聚苯胺/聚苯乙烯磺酸-聚乙烯醇（PANI/PSSA-PVA）复合物固体及其复合溶液,用旋涂法制备了相应的复合电致变色膜。通过优化实验表明,反应温度为10-15℃时,m（PVA）=2.5%,n（PSSA）∶n（An）∶n（APS）=1∶0.7∶0.4的复合溶液所制得的复合电致变色膜具有良好的电致变色性能,其电导率可达0.119S/cm。本合成工艺简单、反应易于控制、产物易于成膜且不脱落,制得的膜底色接近无色且电导率较高,在电致变色器件等方面有广泛的应用前景。

In the aqueous phase,choosing polystyrene sulfonic acid as template doping agent,polyvinyl alcohol as film-forming agent,and aniline as monomer, and utilizing ammonium persulfate to initiate and synthesize the complex solid of PANI/PSSA-PVA, and it＇s aqueous solution, and then with the method of spin-coating, the corresponding complex eleetroehromie films is prepared. The experimental result shows that the prepared solution has fine eleetroehromie property when m（PVA）=2.5% ,n（PSSA）：n（An）：n（APS）= 1 ：0.7：0.4,and the reaction temperature is 10-15℃,moreover,the eleetroehromie film＇s conductivity produced by it could come up to 0.119S/em. This synthetical process is simple and easily to be controlled,and its products apt to be filmforming without peeling, with their grounding nearly colorless and high conductivity, have the perspective of being widely applied to eleetroehromie devices,etc.