CAJ | 학술논문

以苯胺为单体,过硫酸铵为氧化剂,采用无模板直接混合法制备了对甲苯磺酸/硫酸复合酸掺杂的导电聚苯胺纳米纤维。研究了对甲苯磺酸用量对合成掺杂聚苯胺的产率、溶解性能以及导电性能的影响,并通过四探针、扫描电镜(SEM)、红外光谱以及紫外光谱测试技术,对掺杂态聚苯胺进行了研究与表征。研究结果表明,室温下对甲苯磺酸和硫酸的摩尔比为0.3∶1时,掺杂态的聚苯胺产率、电导率以及溶解率达到最大值,其中产率为148.25%,电导率可达3.33 S/cm-1,在氮甲基吡咯烷酮(NMP )中溶解率为62.6%。通过扫描电镜可以看出,复合酸掺杂形成的聚苯胺纳米纤维长度可达200~500 nm 且粗细均匀。紫外光谱以及红外光谱都表明了复合酸掺杂的有效性。
이분알위단체,과류산안위양화제,채용무모판직접혼합법제비료대갑분광산/류산복합산참잡적도전취분알납미섬유。연구료대갑분광산용량대합성참잡취분알적산솔、용해성능이급도전성능적영향,병통과사탐침、소묘전경(SEM)、홍외광보이급자외광보측시기술,대참잡태취분알진행료연구여표정。연구결과표명,실온하대갑분광산화류산적마이비위0.3∶1시,참잡태적취분알산솔、전도솔이급용해솔체도최대치,기중산솔위148.25%,전도솔가체3.33 S/cm-1,재담갑기필각완동(NMP )중용해솔위62.6%。통과소묘전경가이간출,복합산참잡형성적취분알납미섬유장도가체200~500 nm 차조세균균。자외광보이급홍외광보도표명료복합산참잡적유효성。
Polyaniline (PANI)nanofibers were synthesized in compound acids aqueous solution by direct mix oxi-dation polymerization with aniline as monomer and ammonium persulfate as oxidant.The properties of the syn-thesized polyaniline were studied and characterized by four-probe,scanning electron microscopy (SEM),FT-IR spectra and UV-Vis spectra.The results show that,at the room temperature,the mol concentration ratio of P-toluenesulfonic acid(TSA)to sulfuric acid (H2 SO4 )was 0.3∶1,both the conductivity and the solubility (in NMP)of the synthesized doped polyaniline reach their maximum which was 3.33 S/cm and 62.6% in NMP,re-spectively.The length of the nanofibers can be tuned from 200 nm to 500 nm using mixed acidas observed via scanning electronmicroscopy.The FT-IR spectra and UV-Vis spectra show the effectiveness of the mixed acid doping.