杨小刚,王莉,金思毅,杨显,胡遵宝

• 1:青岛科技大学环境与安全工程学院
• 2:青岛科技大学化工学院
• 3:河南大学化学化工学院

摘要(Abstract)：

采用无模板直接混合法制备了硫酸一次掺杂聚苯胺,经氨水解掺杂得到本征态聚苯胺,然后在磷酸体系中对本征态聚苯胺进行二次掺杂。研究了不同的磷酸浓度,反应时间,搅拌时间等对二次掺杂聚苯胺电导率和产率的影响,得到磷酸二次掺杂聚苯胺合成的优化条件,并通过四探针测试仪、扫描电镜、红外光谱、紫外光谱以及电化学测试技术,对掺杂态聚苯胺进行了研究与表征。结果表明,室温下磷酸浓度为1 mol·L-1,搅拌反应24 h时,磷酸二次掺杂聚苯胺的电导率以及产率达到最大值,电导率为0.25 S·cm·1,产率达到138.7%。扫描电镜表征显示,磷酸二次掺杂可获得形貌良好的聚苯胺纳米纤维,其长度可达400~600 nm,且纤维直径均匀;紫外谱图和红外谱图表明磷酸能有效的掺杂到本征态聚苯胺中,改善其电导率及产率;电化学测试结果表明磷酸二次掺杂聚苯胺较一次掺杂聚苯胺有着更好的防腐蚀性能。

关键词(KeyWords)： 掺杂/解掺杂;聚苯胺;纳米结构;防腐性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41106070);; 山东省自然科学基金项目(ZR2009EQ008);; 广东电网公司科技项目(K-GD2013-0504)

作者(Author): 杨小刚,王莉,金思毅,杨显,胡遵宝

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