光固化亲水酸性磷酸酯的合成及其对聚苯胺掺杂行为的研究(二)

Synthesis of photocured hydrophilic acid phosphate ester and its doping behavior to polyaniline(Ⅱ)

以聚(乙二醇)甲基丙烯酸酯、三氯氧磷以及三乙胺等为原料合成光固化亲水酸性磷酸酯(UV-PP),对合成的产物进行表征。以UV-PP为掺杂剂、过硫酸铵(APS)为氧化剂,原位聚合苯胺制备了可光固化的导电聚苯胺分散体。利用红外光谱(FT-IR)、紫外-可见分光光度计(UV-Vis)、X射线衍射(XRD)、四探针电阻测试仪和激光粒度仪对产物进行表征测试,研究了氧化剂与掺杂剂用量对聚苯胺的合成以及掺杂行为的影响。结果表明:当UV-PP与苯胺单体以及APS的物质的量比为9:3:1,UV-PP为去离子水质量的10%时,合成聚苯胺分散体的粒径为114.46nm,水溶性最好,在室温下放置6周后粒径大小变化小于70nm,且纯聚苯胺的电导率可达10.36mS/mm。

Photocurable hydrophilic acid phosphate ester(UV-PP)was synthesized from polyethylene(ethylene glycol)methacrylate,phosphorus oxychloride,triethylamine and other raw materials,and the synthesized product was characterized.Photocurable conductive polyaniline dispersions were prepared by in situ polymerization of aniline using UV-PP as dopant and ammonium persulfate(APS)as oxidant.The products were characterized by infrared spectroscopy(FT-IR),ultraviolet visible spectrophotometer(UV-Vis),X-ray diffraction(XRD),four-probe resistance tester and laser particle size analyzer.The effects of the dosage of oxidant and dopant on the synthesis and doping behavior of polyaniline were studied.The results indicated that the synthesized polyaniline dispersion had the best water solubility when the molar ratio of UV-PP and aniline monomer to APS was 9:3:1,and UV-PP was 10%of the mass of deionized water.After six weeks at room temperature,the change in particle size was less than 70nm,and pure polyaniline had aconductivity of 10.36mS/mm.