Studies of thermal and electrical conductivity behaviours of polyaniline and polypyrrole blends with polyvinyl acetate, polystyrene and polyvinyl chloride

被引:0
|
作者
Hosseini, SH [1 ]
Entezami, AA
机构
[1] Azad Univ, Dept Chem, Fac Tech & Engn, Share Ray Unit, Tehran, Iran
[2] Tabriz Univ, Fac Chem, Polymer Lab, Tabriz 51664, Iran
关键词
differential scanning calorimetry; scanning thermal analysis; thermal gravimetry; conductometry; conducting polymers;
D O I
暂无
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Physical properties and thermal behaviours of polymers vary by molecular weight or ID stereoisomers. These properties also change in the presence of polymeric and nonpolymeric additives. Conductive polymers are insoluble in original organic solvents and their processibility are limited. In this research, the processible conducting polymers are synthesized and their electrical properties and thermal behaviour are studied. The blends of polyvinyl acetate (PVAc), polystyrene (PS) and polyvinyl chloride (PVC) with polypyrrole (PPy) and polyaniline (PANi) are prepared. On the other hand, the percentages of compounds of these blends for suitable electrical properties, solubility and processability are optimized. All the samples were prepared in the smooth form and thin film. A four-point probe method is adopted to examine the electrical DC conductivity. It is found that the conductivity of the blends is decreased but their processibility and solubility are increased. Thermal stability of polypyrrole and polyaniline blends were investigated by scanning thermal analysis (STA), differential scanning calorimetry (DSC) and thermal gravimetrical analysis (TGA). As it is evident from the results, the prepared blends are much more stable compared with polypyrrole, polyaniline and host polymers.
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页码:201 / 209
页数:9
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