新型共混十二烷基苯磺酸掺杂的聚苯胺导电胶的合成

Preparation of a New Organic Conductive Adhesive Blended by Polyaniline of Doping Dodecyl Benzenesulfonic Acid

以摩尔比为１： １的苯胺与过硫酸铵为反应物，在 ｃ（ＨＣｌ）＝ １ｍｏｌ／Ｌ盐酸中于室温下合成的聚苯胺，经２５％（ω）氨水处理后得本征态聚苯胺，收率７２％。用５０％（ω）十二烷基苯磺酸的乙醇溶液６０ｍｌ与３ｇ本征态聚苯胺在室温下反应２４ｈ，可制得导电态的掺杂十二烷基苯磺酸的聚苯胺，电导率３．９８Ｓ／ｃｍ。然后在６０℃下将环氧树脂Ｅ－４４和上述掺杂态聚苯胺（ｍ：＝１：０，４）经良好搅拌１ｈ，得均匀的黑色导电胶。该电胶可溶解在二甲苯中，并能与体积比为１：１的邻苯二甲酸在８０℃下经４ｈ可完全固化，电导率为０．１１８Ｓ／ｃｍ。

Polyaniline was synthesized by the reaction of aniline and ammonium persulfate in 1mol/L hydrochloric acid at room temperature, which was then washed with 25% aqueous ammonia and intrinsic polyaniline in 72% yield was obtained.The conducting dope polyaniline was prepared by the 'mixing of the 60ml ethanol solution of 50% dodecyl benzenesulfonic acid and 3. 0g intrinsic polyaniline at room temperature for 24 hours, which conductivity measured by four Probe method was 3.98S/cm.At 60℃,the epoxy resin E - 44 and above doping polyaniline with a mass ratio of l:0.4 was strongly stirred for lh, and a dark conducting adhensive was prepared. The new conductive adhensive could be dissolved in xylene and cured by phthalic anhydride at 80℃ for 4 hours, and the conductivity was 0. 118S/cm.