摘要
用原位聚合法,以十二烷基苯磺酸(DBSA)/HC l混酸为掺杂剂,过硫酸胺(APS)为氧化剂,制备了聚苯胺/掺锑二氧化锡(ATO)导电复合材料。探讨了ATO用量对导电复合材料电导率的影响。在n(苯胺)∶n(APS)∶n(DBSA)=1∶1∶0.7,m(ATO)∶m(苯胺)=0.1∶1时,复合材料室温25℃的电导率最高可达8.35 S/cm,比通常方法合成的聚苯胺和nano-ATO的电导率分别提高约1至2个数量级。通过FTIR、XRD、SEM和TEM对目标物进行了表征,结果表明,苯胺优先在ATO纳米粒子表面聚合,形成聚苯胺包覆ATO的导电复合材料。
A composite of polyaniline（PANI） containing antimony doped tin oxide nanoparticles（ nano- ATO） was prepared by in situ polymerization method. Dodecyl-benzenesulfonic acid （DBSA） and hydrochloric acid were used as dopant and ammonium persulfate（APS） was used as oxidant during the polymerization. The effect of content of nano-ATO on the conductivity of the composite material was studied. When n（ aniline ） ： n （APS） ： n （DBSA） = 1：1：0.7 and m （ ATO ） ： m （ aniline ） = 0. 1 ： 1, the highest conductivity was 8.35 S/cm at 25℃ , which raised one order of magnitude compared with that of PANI synthesized by the conventional method and two orders of magnitude compared with that of nano-ATO. The PANI/nano-ATO composite materials were characterized by FTIR, XRD, SEM and TEM. The results indicated that aniline polymerizes preferentially on the surfaces of nano-ATO, resuhing in polyaniline coated nano-ATO conductive composite materials（PANI/nano-ATO）.
出处
《精细化工》
EI
CAS
CSCD
北大核心
2006年第6期540-544,共5页
Fine Chemicals
