导电水凝胶的制备

作为一种新型的功能材料,导电水凝胶已经引起广泛的关注。本文根据目前的研究现状,将导电水凝胶大致分为聚电解质导电水凝胶,酸掺杂导电水凝胶,无机物添加导电水凝胶以及导电高分子基导电水凝胶等几大类,并综述了它们的制备方法。另外,由于大分子体系的导电高分子和水凝胶都有着独特和重要的性能,这使得它们具有广阔的应用价值。所以,本文在综述导电水凝胶制备进展的同时着重综述了导电高分子基导电水凝胶的制备进展。     

聚并苯导电高分子材料研究的进展

聚并苯导电材料可由酚醛树脂高温裂解得到,其比重、磁化率、电阻率等在50年代就有人进行过研究。80年代以来,随着有机导电聚合物研究的兴起,聚并苯材料以其合成简单、易于掺杂、在空气中稳定及电导率可随合成温度变化(近20个数量级)等特点引起了人们极     

可溶性导电高分子的合在

本文以聚乙炔类导电高分子为重点简要地综述了可溶性导电高分子的合成与研究现状。     

可溶性导电高分子的合成

本文以聚乙炔类导电高分子为重点简要地综述了可溶性导电高分子的合成与研究现状。     

气相氧化聚合制备聚合物／聚吡咯表面复合导电材料

将填充有ＦｅＣｌ３的苯乙烯－丙烯腈共聚物，用ＦｅＣｌ３的乙醇溶液浸泡处理后，置于吡咯气氛中，制得聚合物／聚吡咯表面复合导电材料。研究了苯乙烯－丙烯腈中ＦｅＣｌ３含量，ＦｅＣｌ３／乙醇溶液浓度，浸泡时间，聚合反应时间对材料电导率的影响。用扫描电镜观察了导电层的表面结构并测定了导电性的稳定性。导电材料最高电导率达４．８×１０３Ｓ·ｍ－１，在干燥气氛下可稳定１８个月以上。     

导电高分子

介绍导电高分子的结构特征、基本物理性能和技术上应用前景;评价导电高分子领域突破性的研究进展和 ２１世纪导电高分子面临的挑战与机遇。     

影响离子导电高分子材料性能的内因与外因

材料分子设计离不开结构与性能的关系。分析内因与外因两方面影响因素对材料功能特性的影响有助于优化功能材料的结构。本文以离子型导电功能高分子材料为例,详细分析了各种因素对材料电导率的影响,为离子型导电功能高分子材料的结构设计提供依据。     

聚苯胺在防腐领域的应用

综述导电聚苯胺用于金属防腐蚀领域的最新进展,并且探讨了其相关的防腐机理。     

水溶性分散剂的合成及其性能研究

合成了苯乙烯－顺丁烯二酸酐共聚型水溶性分解剂，并讨论了这种分散剂对导电粉及炭黑等难分散颜料的分散稳定性作用。结果表明，在水介质中，该发散剂能明显改善导电粉和炭黑颜料的分散稳定性。     

新型导电高分子材料

新型导电高分子材料梁洪泽，刘振海，丁黎明，陈东霖，景遐斌，王佛松（中国科学院长春应用化学研究所，１３００２２）松全才（北京理工大学，１０００８１）１９９３年，Ａｎｇｅｌｌ设计了一种全新的具有突破意义的合成高分子固体电解质的方法［１］。其基本路线是在数...     

导电聚合物微米/纳米管的研究进展

介绍了模板及非模板法制备导电聚合物微米 /纳米管的基本合成方法 :详细地分析了影响导电聚合物微米 /纳米管形成的因素 ;对导电聚合物微米 /纳米管的特性及影响因素进行了讨论。     

导电高分子纳米复合材料

导电高分子纳米复合材料是纳米材料研究中一个重要部分。着重综述了导电高分子无机纳米复合材料在合成技术、材料性质和各领域中应用的最新研究进展。     

在导电高分子薄膜表面沉积密度可控的银纳米粒子

<正>由于导电高分子的导电性和化学性质可以在导体和半导体区间内快速调节[1],因此其复合材料受到了越来越多的关注[2].金属纳米粒子在光电子器件、检测及传感等诸多领域表现出独特的性能[3],在生物技术领域中的重要性尤为突出[4].因此,如果将导电高分子和金属纳米粒子结合在一起,将有利于拓展导电高分子的应用范围.本文研究了银纳米粒子在聚苯胺薄膜表面的沉积行为,分别用原子力显微镜(AFM)和扫描电子显     

Fluorescent Polypyrrole Nanospheres – Synthesis and Properties of “Wireless” Redox Probes

In this work a novel concept of monitoring of occurrence of redox reactions between conducting polymer nanospheres and redox species in a solution is proposed. The redox process is monitored in the emission mode (without wiring of the probe to an electrochemical measuring set‐up) as a change in emission spectrum of a dye (not participating in the redox process itself) but reporting the alteration of properties of highly sensitive conducting polymer nanoparticles. This approach is possible due to applied unique method of synthesis of conducting polymers nanospheres of highly active, unblocked surface. Thus the nanospheres redox state is affected by the solution redox potential, leading to change of their properties. If solvatochromic probe of sufficiently high brightness (pyrene) is present in nanospheres, a redox reaction between the conducting polymer and solution can be observed as change of emission spectrum of the probe. Thus a localized redox potential optical probe can be obtained. The emission properties of the dye incorporated were preserved in the nanospheres, moreover, the emission spectrum of the probe was affected by the change in redox potential of the solution, thus influencing the redox state and ultimately the properties of the conducting polymer. The emission changes observed were dependent on ion‐exchange properties of polypyrrole, i.e. depending on the dopant ions present in the polymer, the sensitivity of the optical probe can be tuned.     

Modeling of electrocatalytic processes at conducting polymer modified electrodes

A mathematical model of electrocatalytic processes taking place at conducting polymer modified electrodes has been developed. The model takes into account the diffusion of solution species into a polymer film, diffusion of charge carriers within the film, and a chemical redox reaction within the film. The space- and time-resolved profiles for reactant and charge carrier concentration within the film, as well as dependencies of electric current on the concentration of solute species, reaction rate constant and thickness of a polymer layer have been obtained and discussed. It has been shown that, even at a relatively fast diffusion of charge carriers within the conducting polymer film, exceeding the diffusion rate of reactant by two orders of magnitude, electrocatalysis of solute species at conducting polymer modified electrodes proceeds within the polymer film rather than at the outer polymer/solution interface, i.e., electrocatalytic conversion follows a redox-mechanism rather than metal-like one. Based on the results obtained, optimization of reaction system parameters could be made for any particular case to get an optimum efficiency or reactant to product conversion.      

导电聚合物的纳米结构及其在生物医学领域的应用

由于表面效应、小尺寸效应和量子效应,使纳米结构的导电聚合物材料与传统聚合物材料相比,显示出更优越的性能。基于神经组织对电场和电刺激敏感性,使得导电聚合物纳米材料在生物医学应用方面很有前景。本文综述了纳米结构的导电聚合物的合成方法,及其在生物医学领域的应用。合成方法主要关注于硬模板法、软模板法和无模板自组装法,以及这些方法中导电聚合物纳米结构的形成机理。总结了具有纳米结构的导电聚合物,如纳米颗粒、纳米纤维和纳米管等作为神经电极涂层材料和生物传感器等方面的应用。     

Recent Progress in the Development of Conducting Polymer‐Based Nanocomposites for Electrochemical Biosensors Applications: A Mini‐Review

Among various immobilizing materials, conductive polymer‐based nanocomposites have been widely applied to fabricate the biosensors, because of their outstanding properties such as excellent electrocatalytic activity, high conductivity, and strong adsorptive ability compared to conventional conductive polymers. Electrochemical biosensors have played a significant role in delivering the diagnostic information and therapy monitoring in a rapid, simple, and low cost portable device. This paper reviews the recent developments in conductive polymer‐based nanocomposites and their applications in electrochemical biosensors. The article starts with a general and concise comparison between the properties of conducting polymers and conducting polymer nanocomposites. Next, the current applications of conductive polymer‐based nanocomposites of some important conducting polymers such as PANI, PPy, and PEDOT in enzymatic and nonenzymatic electrochemical biosensors are overviewed. This review article covers an 8‐year period beginning in 2010.     

锂金属电池用三维半互穿网络聚合物电解质的制备

锂金属电池作为下一代高比能量电池技术受到人们越来越广泛的关注。然而由锂枝晶生长引发的安全问题是锂金属电池商业化面临的最大挑战之一。具有高锂离子迁移数和离子电导率的聚合物电解质是抑制锂枝晶生长的重要策略之一。本文将季戊四醇四丙烯酸酯和自由基引发剂AIBN添加至商业化电解液中,采用具有单离子传导功能的多孔聚合物电解质为锂金属电池的电解质隔膜,通过在电池内部发生热诱导原位聚合制备三维半互穿网络单离子传导聚合物电解质,达到提高电解质隔膜离子电导率和机械拉伸性能,以及有效抑制锂枝晶生长的目的。通过该策略的实施,成功获得了室温离子电导率0.53 mS·cm^-1和锂离子迁移数0.65的良好结果。应用于锂金属电池,证明该电解质能够有效抑制锂枝晶的生长和倍率性能的提高,为锂金属电池的开发提供了良好的解决路径。     

超级电容器用碳化物骨架碳/导电聚合物复合材料的研究进展

碳化物骨架碳是近年来开发的一种具有纳米结构的新型多孔碳材料。由于该材料比表面积大、孔径大小可调、表面化学结构稳定以及成本较低等优点,被认为是超级电容器的理想电极材料之一。骨架碳材料与金属氧化物的复合,或者与导电聚合物的复合,能够将双电层电容与法拉第电容结合,既可提高超级电容器的比电容,改变其充放电电压,又可以提高其循环...     

导电聚合物传感器的研究进展

综述了导电聚合材料应用于生物敏、离子敏、气敏、湿敏传感器的研究概况。并对导电聚合物传感器研究动向作了展望。