• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Polymer: The International Journal for the Science and Technology of Polymers >STRUCTURES AND PROPERTIES OF THE WATER-SOLUBLE SELF-ACID-DOPED CONDUCTING POLYMER BLENDS - SULFONIC ACID RING-SUBSTITUTED POLYANILINE/POLY(VINYL ALCOHOL) AND POLY(ANILINE-CO-N-PROPANESULFONIC ACID ANILINE)/POLY(VINYL ALCOHOL)
【24h】

STRUCTURES AND PROPERTIES OF THE WATER-SOLUBLE SELF-ACID-DOPED CONDUCTING POLYMER BLENDS - SULFONIC ACID RING-SUBSTITUTED POLYANILINE/POLY(VINYL ALCOHOL) AND POLY(ANILINE-CO-N-PROPANESULFONIC ACID ANILINE)/POLY(VINYL ALCOHOL)

机译：水溶性自掺杂导电聚合物共混物的结构和性能-磺胺酸环取代的聚苯胺/聚乙烯醇（乙烯醇）和聚（苯胺-CO-N-丙炔醇苯胺）/聚乙烯醇（乙烯醇）

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Blends of the water-soluble self-acid-doped conducting polyanilines, sulfonic acid ring-substituted polyaniline (SPAN) and poly(aniline-co-N-propanesulfonic acid aniline) (PAPSAH), each with poly(vinyl alcohol) (PVA) were prepared and characterized by X-ray diffraction, X-ray photoelectron spectroscopy, electronic spectroscopy, infra-red spectroscopy, thermogravimetric analysis, conductivity measurements, atomic force microscopy, and scanning tunnelling microscopy. It was found that the incorporation of PVA has no effect on the doping levels of SPAN and PAPSAH in the blends. This is due to the higher basicity of the -N= than -OH, causing a more favourable interaction of the -SO3H group with -N=. The strong interaction of these polyanilines with PVA through hydrogen bonding between hydroxyl groups (of PVA) and amine and positively charged amine and imine sites (of SPAN and PAPSAH) leads to a decrease in hydrogen bonding among PVA subchains and to a partial miscibility. As the PVA content is higher than 70%, interconnected regions of PVA-rich phase and of SPAN-rich phase are formed such that the dilution effect of PVA on the conductivity is not large. Although SPAN has a much higher thermal undoping temperature (190 degrees C) than PAPSAH (110 degrees C), it reduces to 110 degrees C in the blends due to the occurrence of dehydration at this temperature, while for the blend of PAPSAH with PVA, its thermal undoping temperature remains unchanged. (C) 1997 Elsevier Science Ltd. [References: 52]
机译：水溶性自酸掺杂导电聚苯胺，磺酸环取代的聚苯胺（SPAN）和聚（苯胺-co-N-丙烷磺酸苯胺）（PAPSAH）的混合物，每种均与聚乙烯醇（PVA）混合通过X射线衍射，X射线光电子能谱，电子能谱，红外能谱，热重分析，电导率测量，原子力显微镜和扫描隧道显微镜对它们进行了制备和表征。发现掺入PVA对掺混物中SPAN和PAPSAH的掺杂水平没有影响。这是由于-N =的碱性比-OH高，导致-SO3H基团与-N =的相互作用更好。这些聚苯胺通过（PVA的）羟基与胺之间的氢键以及（SPAN和PAPSAH的）带正电荷的胺和亚胺位点之间的氢键与PVA形成强相互作用，导致PVA子链之间的氢键减少并部分混溶。当PVA含量高于70％时，形成PVA富集相和SPAN富集相的互连区域，使得PVA对电导率的稀释作用不大。尽管SPAN的热解胶温度（190摄氏度）比PAPSAH（110摄氏度）高得多，但由于在此温度下会发生脱水，因此共混物中的热解掺杂温度降低至110摄氏度，而对于PAPSAH和PVA的共混物，其热非掺杂温度保持不变。 （C）1997 Elsevier Science Ltd. [引用：52]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号