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尺寸可控的聚苯胺复合微球的电纺制备与表征

DOI: 10.3724/SP.J.1105.2011.10220, PP. 752-757

Keywords: 电纺,聚苯胺,微球结构,尺寸可控,超顺磁

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Abstract:

以十二烷基苯磺酸(DBSA)掺杂的导电聚苯胺与聚乙二醇(PEG)及Fe3O4的混合氯仿溶液,采用静电纺丝(spinningtechnology)方法制备含Fe3O4纳米颗粒的导电聚苯胺(PANI)/PEG/Fe3O4复合微球.SEM结果表明,电纺所得的PANI/PEG/Fe3O4复合微球结构依赖于PEG聚合物浓度、静电纺丝电压和Fe3O4的添加量.随着PEG质量浓度的增加,微球从彼此粘结变化为较为规则的微球结构,并且直径呈增大趋势;当电纺电压逐渐增加时,微球尺寸逐渐减小;而在PANI/PEG溶液中加入不同量的Fe3O4后,电纺产物的形貌几乎没有变化.FTIR结果表明,静电纺丝过程没有改变各组分的性质;XRD分析表明,电纺工艺不影响复合微球中PANI组分的分子结构;磁性测试结果表明,Fe3O4的添加诱导复合微球呈超顺磁性,其饱和磁强度(Ms)随Fe3O4的加入量的增加而增加.

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