Kompetenzzentrum Holz GmbH, Klagenfurterstrasse 87-89, A-9300 St. Veit an der Glan, Austria.
ACS Appl Mater Interfaces. 2011 Sep;3(9):3602-10. doi: 10.1021/am200815a. Epub 2011 Sep 9.
The preparation of multilayered latex particles with surface functional groups suitable for use as electrophoretic particles in electronic inks has been studied. The particles are formed by dispersion polymerization and have a polystyrene core, slightly cross-linked with divinylbenzene (DVB), and a poly(methyl methacrylate) (PMMA) or a poly(acrylic acid) (PAA) shell. After grafting alkyl chains on their surface, the particles are negatively or positively charged and sterically stabilized against aggregation in nonpolar solvent. The particles were dyed by incorporation of Nigrosin during polymerization or by swelling in supercritical CO(2) in the presence of a dye. Particle size, morphology, incorporated dye content and zeta potential were determined. A dual-particle electronic ink based on a mixture of the colored multilayered particles and white hybrid TiO(2)-polymer particles was prepared and electro-optically tested.
已研究了具有适合用作电子油墨中的电泳颗粒的表面官能团的多层胶乳颗粒的制备。这些颗粒是通过分散聚合形成的，具有聚苯乙烯核，略微交联有二乙烯基苯（DVB），以及聚（甲基丙烯酸甲酯）（PMMA）或聚（丙烯酸）（PAA）壳。在其表面接枝烷基链后，颗粒带负电或正电，并在非极性溶剂中由于空间位阻稳定而防止聚集。通过在聚合过程中掺入 Nigrosin 或在存在染料的情况下在超临界 CO(2)中溶胀对颗粒进行染色。测定了颗粒大小、形态、掺入的染料含量和 ζ 电位。基于彩色多层颗粒和白色混合 TiO(2)-聚合物颗粒的混合物的双粒子电子油墨被制备并进行电光测试。
