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综述了近十年来聚苯胺导电高分子及其复合物气敏材料的研究进展。重点介绍了纳米结构聚苯胺、聚苯胺与有机高分子复合材料、聚苯胺与纳米结构无机半导体或金属等复合材料的气敏响应特性及敏感机理。讨论了影响聚苯胺基纳米复合材料气敏性能的主要因素,包括复合材料的纳米结构、制备工艺,以及有机高分子,无机半导体及金属等复合材料和检测气体的性质等,提出这类高分子复合气敏材料今后发展的趋势与前景。 相似文献
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导电高分子材料聚苯胺及其开发前景 总被引:7,自引:0,他引:7
就导电高分子材料聚苯胺的电化学聚合、化学合成、聚合物结构、聚合物的特性及其应用等予以综述;结合科研实践提出了聚苯胺在防腐、防污领域中的开发前景。 相似文献
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导电高分子材料的研究与最新进展 总被引:3,自引:0,他引:3
导电高分子材料从1977年白川英树(K·Shirakawa)和Mac Diarmid等人首次发现用AsF_5、I_2对聚乙炔(PA)进行P型掺杂获得10~3Scm~(-1)以上的高电导率以来.有机导电(本征和非本征)高分子研究已成为当今国际边缘学科十分活跃的领域之一。1989年日本人首先将聚苯胺在二次锂电池中作为阴极材料而实用 相似文献
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锆钛酸铅/聚苯胺/聚氨酯三元阻尼复合材料 总被引:2,自引:0,他引:2
为减少压电陶瓷/导电填料/聚合物阻尼复合材料中填料的含量,制备了锆钛酸铅(PZT)/聚苯胺/聚氨酯三元复合材料,其中,聚苯胺(PANI)通过原位聚合的方法包覆于压电陶瓷粒子的表面.采用FTIR,TGA,SEM、EDS研究了PANI包覆PZT的组成和形态.用DMA评价了复合材料的阻尼性能.结果表明,通过原位聚合的方法能够制备PANI包覆的PZT粉末;三元复合材料的阻尼性能与PANI的导电率有关,在一定的PANI导电率时达到最大,并且在任意导电率下均高于单一聚氨酯.用PANI包覆的压电陶瓷与聚合物复合,能够提高聚合物的阻尼性能.通过调整PANI的导电率,可以使材料的阻尼性能达到相应振动频率下的最大值. 相似文献
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Electrically conductive processible polyaniline films have been synthesised from the electropolymerization of aniline under
non-aqueous conditions. The characterization of the polymer was carried out by spectroscopic methods. 相似文献
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A conductive polymer polyaniline (PANI) was employed to achieve surfaces of both super-hydrophobic and conductive on NaOH etched porous anodic alumina (PAA) membranes. The surfaces exhibit micro- and nanostructures. In the PANI modified PAA membrane, PANI is mainly emeraldine. After the membrane was immersed in HCl, the content of the protonated nitrogen increased, which increased the conductivity. 相似文献
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聚合方法对聚苯胺导电性能的影响 总被引:4,自引:0,他引:4
采用溶液聚合与乳液聚合两种方法分别合成了导电高分子材料聚苯胺(PAn)并对其性能进行了比较研究,实验结果表明,不同的聚合方法影响聚合物的产率,溶解度,分子量,导电性,环境稳定性以及微观结构等性能。 相似文献
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A conductive polymer dot pattern has been fabricated as a patterned medium using diblock copolymer lithography (DCL) for scanning multiprobe data storage systems (SMDSSs). DCL can easily provide a higher dots pattern density than that obtained using electron beam lithography. For DCL, the microphase-separated structure of polystyrene-block-polymethylmethacrylate is utilized. Then, the closed dot pattern of polyaniline (PANI) with a center to center distance of adjacent dots of 30?nm is fabricated by DCL. Electrical modification experiments of the fabricated PANI dots are demonstrated using scanning probe microscopy (SPM). As a result, the conductivities of the modified dots are selectively changed by applying modification voltages with the tip of the SPM probe. Recording on the conductive polymer with 30?nm pitch at the minimum can be demonstrated, which corresponds to a recording density of ~700?Gbits?inch(-2). These results show that the conductive polymer patterned medium has the potential ability to achieve high-density recording for SMDSSs. 相似文献
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Chao Y. Huang Jauyn G. Lin Lee Y. Wang 《Fullerenes, Nanotubes and Carbon Nanostructures》1997,5(5):1083-1090
The conductive polyurethane elastomers using firllerenols as crosslinking centers have been prepared as reported previously. Based on the temperature-dependent resistivity data, the electronic transport between polyaniline chains may originate from a hopping mechanism, and, the change of the activation energy can be correlated with the equivalent ratio of the connecting polymer chains used in the network preparation. 相似文献