Department of Chemistry, University of Arizona, 1306 E. University Boulevard, Tucson, Arizona 85721, USA.
Langmuir. 2010 Feb 2;26(3):2083-92. doi: 10.1021/la902590u.
The synthesis and electrochemical characterization of ferrocene functional polymethacrylate brushes on indium tin oxide (ITO) electrodes using surface-initiated atom transfer radical polymerization (SI-ATRP) is reported. SI-ATRP of ferrocene-containing methacrylate (FcMA) monomers from a phosphonic acid initiator-modified ITO substrate yielded well-defined homo- and block (co)polymer brushes of varying molar mass (4,000 to 37,000 g/mol). Correlation of both electrochemical properties and brush thicknesses confirmed controlled SI-ATRP from modified ITO surfaces. The preparation of block copolymer brushes with varying sequences of FcMA segments was conducted to interrogate the effects of spacing from the ITO electrode surface on the electrochemical properties of a tethered electroactive film.
本文报道了在铟锡氧化物（ITO）电极上通过表面引发原子转移自由基聚合（SI-ATRP）合成并电化学表征二茂铁功能化的聚甲基丙烯酸酯刷。使用磷酸酯引发剂改性的 ITO 基底上的含二茂铁甲基丙烯酸酯（FcMA）单体的 SI-ATRP 得到了具有不同摩尔质量（4000 至 37000g/mol）的均聚物和嵌段（共）聚合物刷。电化学性质和刷厚度的相关性证实了从改性 ITO 表面进行的受控 SI-ATRP。通过改变 FcMA 段的序列制备了嵌段共聚物刷，以研究与 ITO 电极表面的间隔对固定化电活性膜电化学性质的影响。
