采用水溶性高聚物聚乙烯吡咯烷酮(PVP)作为空间稳定剂,利用分散聚合的原理成功地制备出了稳定的聚苯胺水基胶体分散液,聚苯胺复合乳胶粒子尺寸为几十至几百纳米,其粒径大小受PVP浓度、苯胺含量和反应温度等因素的影响.空间稳定剂可以提供胶体成核点.当PVP浓度较低时,聚合反应速率较小,当PVP浓度达到2%(质量分数)以后,聚合反应开始加速.红外光谱结果表明PAn-PVP复合物形成了分子内氢键.随着苯胺浓度的增加,聚苯胺电导率先增大后减少,最大值达到8.74×10-3S/cm,具有较好的应用前景.
参考文献
[1] | Chandrasekhar P;Naishadham K .[J].Synthetic Metals,1999,105:115-120. |
[2] | 薛志坚;漆宗能;王佛松.[J].高分子学报,1997(04):439-444. |
[3] | Ghosh P;Kar S B .[J].Polym Mater,2002,19:75-79. |
[4] | Sulimenko T;Stejskal .[J].European Polymer,2001,37:219-223. |
[5] | Ghosh P;Chakrabarti A;Siddhanta S K .[J].Europe Polymer,1999,35:803-808. |
[6] | 方鲲,李守平,陶雪钰,王清录,毛卫民,吴其晔.分散聚合水基聚苯胺乳胶微球制备与表征[J].物理化学学报,2004(01):103-106. |
[7] | Stejskal J;Trchova M;Ananieva IA;Janca J;Prokes J;Fedorova S;Sapurina I .Poly(aniline-co-pyrrole): powders, films, and colloids. Thermophoretic mobility of colloidal particles[J].Synthetic Metals,2004(1):29-36. |
[8] | Eisazadeh H;Spinks G;Wallace G G .[J].POLYMER,1995,37:87-92. |
[9] | Stejskal J;Kratochvíl P;Helmstedt M .[J].Langmuir,1996,12:3389-3394. |
[10] | Somani P R;Mater .[J].CHEMICAL PHYSICS,2002,77:81-85. |
[11] | Riede A;Helmstedt M;Sapurina I et al.[J].Colloid and Interface Science,2002,248:413-419. |
[12] | Stejskal J;Sapurina I .[J].Journal of Colloid and Interface Science,2004,274:489-495. |
[13] | Ghosh P;Siddhanta S K .[J].Synthetic Metals,2001,123:83-89. |
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