沉淀聚合制备磺酸掺杂的聚苯胺  

Preparation of Polyaniline Doped with Different Organic Acids from Precipitation Polymerization

作　　者：马永梅[1] 谢洪泉[1] 王松林[2] 冯定松[2] 

机构地区：[1]华中理工大学化学系 [2]湖北工学院化工系

出　　处：《高等学校化学学报》1998年第7期1171-1174,共4页Chemical Journal of Chinese Universities

摘　　要：以二丁基萘磺酸（ＤＢＮＳＡ）或十二烷基苯磺酸（ＤＢＳＡ）为有机酸，水为主要反应介质的条件下进行沉淀聚合直接制备有机酸掺杂的聚苯胺（ＰＡｎ）．讨论了酸度、温度和氧化剂用量等反应条件对产物的影响．２Ｌ规模扩大实验的产率约为７５％～８０％，所得ＰＡｎ具有高电导率（３．０Ｓ·ｃｍ－１），并易溶于普通有机溶剂．其中ＰＡｎ－ＤＢＮＳＡ在各方面较具优势．Polyanilines doped with different organic acids were directly prepared by precipitation polymerization technique using water/acetone as the medium of reaction and dodecylbenzene sulfonic acid (DBSA) or dibutylnaphthalene sulfonic acid(DBNSA) as the organic acid. Optimum reaction parameters, such as polymerization temperature, reaction time, molar ratio of acid/aniline and (NH 4) 2S 2O 8/aniline, were obtained for the precipitation polymerization of aniline. Polymer yield was about 80%. Organic acid doped PAn made in 2 L experiment scale showed a high conductivity (3.0 S·cm -1 ) and can be easily dissolved in common organic solvent, therefore, this precipitation polymerization technique should be applied in industry. PAn DBNSA is somewhat better than PAn DBSA in properties.

关 键 词：沉淀聚合 聚苯胺 导电态 DBNSA DBSA 掺杂 磺酸 

分 类 号：O633.21[理学—高分子化学] TM243[理学—化学]