聚苯胺复合多网络水凝胶的制备和性能研究  

Preparation and performance study of polyaniline composite multi-network hydrogels

作　　者：吕胤儒 陶玉仑[1] 王超然 范兴文 刘富晨 Lv Yinru;Tao Yulun;Wang Chaoran;Fan Xingwen;Liu Fuchen(School of Materials Science and Engineering,Anhui University of Science and Technology,Huainan 232000)

机构地区：[1]安徽理工大学材料科学与工程学院,淮南232000

出　　处：《化工新型材料》2024年第S01期251-255,共5页New Chemical Materials

摘　　要：为了研究醋酸掺杂聚苯胺(PANI)复合聚乙烯醇(PVA)/聚丙烯酸钠(PAAS)多网络水凝胶的电化学性能和光敏性能,采用水溶液共聚法制得PVA/PAAS多网络水凝胶,然后用原位聚合法将PANI与水凝胶复合生成导电水凝胶,即PANI/PVA/PAAS水凝胶;利用紫外-可见光吸收光谱(UV)、傅利叶红外光谱(FT-IR)、X射线衍射(XRD)和扫描电子显微镜图(SEM)对PANI粉体进行表征,以探究PANI粉体的结构和形貌。结果表明:PANI粉体具有不错的晶体结构以及在掺杂醋酸浓度为0.12mol/L时具有最好的棒状形貌特征。通过循环伏安法(CV)和恒电流充放电测试(CP)证明了导电水凝胶在醋酸掺杂浓度为0.12mol/L时具有最大的面积比电容216.5mF/cm^(2),使该材料有发展成超级电容器的前景;通过光敏感性测试证明了在掺杂醋酸浓度为0.20mol/L时,导电水凝胶具有最好的光敏性能,说明该材料有发展成光敏感材料的潜力。To investigate the electrochemical and photosensitive properties of polyvinyl alcohol(PVA)/sodium polyacrylate(PAAS)multi-network hydrogels with acetic acid-doped polyaniline(PANI),PVA/PAAS multi-network hydrogels were produced by aqueous copolymerization method.Subsequently,PANI was compounded with the hydrogels by in situ polymerization to generate conductive hydrogels,i.e.PANI/PVA/PAAS hydrogels.The PANI powders were characterized using ultraviolet-visible absorption spectroscopy(UV),Fourier infrared spectroscopy(FT-IR),X-ray diffraction(XRD)and scanning electron microscope(SEM)to investigate the structure and morphology of PANI powders.The results showed that the PANI powders had a good crystal structure and the best rod-like morphological characteristics at a doped acetic acid concentration of 0.12mol/L.Cyclic voltammetry(CV)and constant current charging/discharging(CP)tests revealed that the conductive hydrogel had a maximum area specific capacitance of 216.5mF/cm^(2) at an acetate doping concentration of 0.12mol/L,which made the material promising for the development of supercapacitors.The best photosensitive performance of the conductive hydrogel was demonstrated by photosensitivity test at the doped acetic acid concentration of 0.20mol/L,indicating that the material had the potential to be developed into a photosensitive material.

关 键 词：醋酸 聚苯胺 多网络水凝胶 超级电容器 光敏感材料 

分 类 号：TQ424[化学工程] X703[环境科学与工程—环境工程]