新型树枝状硫醇的自组装单层膜──图案化表面及其浸润性的调控

近年来 ,自组装膜的研究不断引起人们重视1] .一方面 ,其兴趣可能源于纳米级器件的组装 ,如生物传感器等 2 ] ;另一方面 ,它可作为研究摩擦学 3]、生物膜模拟 4 ]和微观浸润性的模型体系 5] .树枝状分子的结构可在分子水平上精确控制 ,是很有潜力的纳米构筑基元 6 ] .不同于常规的自组装膜构筑基元 ,树枝状分子的特殊结构使其在金属表面形成某些特殊的组装结构成为可能 .结合界面分子自组装技术和树枝状分子化学 ,国内外已有机构开展了树枝状硫醇的自组装膜的研究7～ 9] .我们曾发现一种聚醚树枝状硫醇分子在金表面形成的自组装单层…

Self-assembled Monolayers of New Dendron-thiols Manipulation of Patterned Surface and Wetting Property

Self-assembled monolayers(SAMs) based on a novel dendron-thiols system, which maintain the alkanethiols active site, but the -SH group connected with independently variable groups by a dendron-linker, showed the controllable surface pattern and wetting property. The precisely tailored structure of dendron-thiols with local controlled hydrophobic and hydrophilic peripheries allow the formation of designed surface structures on gold surface, e.g. nano-stripes, honeycomb and homogeneous structure.