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首页> 外文期刊>Journal of Applied Polymer Science >Preparation of Conductive Polyaniline/Chlorosulfonated Polyethylene Composites iva In Situ Emulsion Polymerizaitoin and Study of Their Properties
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Preparation of Conductive Polyaniline/Chlorosulfonated Polyethylene Composites iva In Situ Emulsion Polymerizaitoin and Study of Their Properties

机译：导电原位乳液聚合聚苯胺/氯磺化聚乙烯复合材料的制备及性能研究

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摘要

The conductive composites of polyaniline (PAn) and chlorosulfonated polyethylene (CSPE) were prepared by polymerization of aniline in the presence of CSPE, using a direct, one-step in situ emulsion polymerization method. The polymerizatin of aniline was performed on an emulsion comprising water and xylene containing CSPE in the presence of dodecylbenzene sulfonic acid, which acts both as a surfactant and a dopant for PAn. The composites can be processed by either melt method (MP) or solution method (SP). Conductivity of the composites obtained by different processign methods shows different percolation thresholds: 14 wt % for MP sampels and 22 wt % for SP samples. At the same content of PAn, whe conductivity of MP composites is higher than that of SP composites. The relationships between mechanical properties and PAn content obtained by the two different processing methods were also investigated. When PAn content of MP samples is between 12 and 18 wt %, the composites behave like a thermoplastic elastomer with tensile strength at 6-8 MPa, ultimate elongation>400% and permanent set<30%. The conductivity of compositesobtained by SP method after secondary doping with m-cresol is about 6 orders of magnitude higher than the original at below 18 wt % PAn content and the percolation threshold for conductivity is lowered to 3 wt % PAn content. The composite shows no electrochromic activity in acidic solution of LiClO_4 in propylene carbonate, but after secondary doping exhibits electrochromic activity even in neutral electrolyte.
机译：聚苯胺（PAn）和氯磺化聚乙烯（CSPE）的导电复合材料是在直接存在的一步法原位乳液聚合方法下，在CSPE存在下通过苯胺聚合制备的。在包含水和二甲苯的CSPE的乳液中，在十二烷基苯磺酸的存在下对苯胺进行聚合，该十二烷基苯磺酸既用作PAn的表面活性剂又用作掺杂剂。可以通过熔融法（MP）或溶液法（SP）加工复合材料。通过不同加工方法获得的复合材料的电导率显示出不同的渗透阈值：MP样品为14 wt％，SP样品为22 wt％。在PAn含量相同的情况下，MP复合材料的电导率高于SP复合材料的电导率。还研究了两种不同加工方法获得的机械性能与PAn含量之间的关系。当MP样品的PAn含量在12至18 wt％之间时，复合材料的行为类似于热塑性弹性体，其拉伸强度为6-8 MPa，极限伸长率> 400％，永久变形<30％。在低于18 wt％的PAn含量下，用间甲酚进行二次掺杂后，通过SP法获得的复合材料的电导率比原来的高约6个数量级，并且渗透率的阈值降低到3 wt％的PAn含量。该复合物在碳酸亚丙酯中的LiClO_4的酸性溶液中没有电致变色活性，但是在二次掺杂后，即使在中性电解质中也显示出电致变色活性。

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