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以吡咯(Py)和聚ε-己内酯(PCL)为原料、氯仿为溶剂,并掺杂一定量的十二烷基硫酸钠制备电纺膜,利用三氯化铁的氧化作用原位生成聚吡咯(PPy).对所得到的PCL/PPy电纺膜用红外光谱进行表征,在扫描电镜和透射电镜下观察纤维形貌,并测定力学性能和体积电阻率.结果表明,所生成的PPy以纳米粒子形式附着在电纺纤维表面,随着Py相对于PCL的质量百分含量由0增加到20%,PCL/PPy电纺膜的纤维直径从(730±341)nm逐渐下降至(325±84)nm;膜的拉伸模量和拉伸强度由不含Py的(25.7±0.8)MPa和(2.48±0.14)MPa分别增加至含有20%Py的(48.4±7.6)MPa和(5.05±0.59)MPa,断裂伸长率由(129±27)%下降至(86.2±9.1)%;体积电阻率降低了2～3个数量级.该PCL/PPy电纺纤维膜以期可作为电活性材料用于功能或生物医用领域.
Pyrrole (Py) and poly-ε-caprolactone (PCL) as raw materials, chloroform as a solvent, and doped with a certain amount of sodium lauryl sulfate preparation of electrospun film, the use of ferric chloride oxidation in situ generated Polypyrrole (PPy). The obtained PCL / PPy electrospun films were characterized by FTIR, scanning electron microscopy and transmission electron microscopy, and the mechanical properties and volume resistivity were measured.The results showed that the PPy As the mass percentage of Py relative to PCL increased from 0 to 20%, the fiber diameter of PCL / PPy electrospun film gradually decreased from (730 ± 341) nm to (325 ± 84) nm. The tensile modulus and tensile strength of the films increased from (25.7 ± 0.8) MPa and (2.48 ± 0.14) MPa without Py to (48.4 ± 7.6) MPa and ± 0.59) MPa, the elongation at break decreased from (129 ± 27)% to (86.2 ± 9.1)%, and the volume resistivity decreased by 2-3 orders of magnitude.The PCL / PPy electrospun fibrous membrane could be used as electroactive material For functional or biomedical applications.