界面聚合自组装合成三维多孔网络状聚邻甲基苯胺

Self-assembly Synthesis of 3D Porous Network Poly(o-toluidine)via Interfacial Polymerization

采用界面聚合法在植酸的辅助作用下自组装合成具有连续三维多孔网络结构的聚邻甲基苯胺（POT）。采用扫描电镜（SEM）、氮气吸附和接触角测定的手段，研究了POT的微观结构、比表面积和亲水性。结果表明：当植酸浓度为0.3 mol/L，聚合温度为10℃时，POT呈现三维多孔网络状形貌，开孔尺寸为0.2-1 μm，且网络上附着粒径不足200 nm的聚合物颗粒。该POT具有相对较高的电导率（7.52×10^-3 S/cm）和比表面积（37.5 m^2/g）以及较好的亲水性（接触角为34°）。在聚合过程中，多官能团的植酸既是掺杂剂又是交联剂，其与聚合物链的相互作用是该自组装行为的驱动力。

Poly（o-toluidine） （POT） with continuous 3D porous network structure was synthesized via self-assembly by interfacial polymerization with an assistance of phytic acid.The measurements of Scanning Electron Microscopy （SEM）,nitrogen adsorption and contact angle had been used to investigate the microstructure,specific area and hydrophily of POT.Results indicate that when the concentration of phytic acid is 0.3 mol/L and the polymerization temperature is 10℃,POT exhibits 3D porous network structure with open channel size of 0.2-1 μm,and less than 200 nm polymer particles anchor on the surfaces of the networks.The POT shows relatively high conductivity （7.52×10^-3 S/cm） and specific area （37.5 m^2/g） as well as good hydrophily （contact angle 34°）.During the polymerization,the phytic acid with multiple functional-groups is used as the dopant and cross-linker,and its interaction with the polymer chains is the driving force for this self-assembly behavior.