Quotes
在科学上没有平坦的大道,只有那些不畏艰险沿着陡峭山路攀登的人,才有希望达到光辉的顶点。
----马克思
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Research Projects
Collaborations
请有兴趣的研究组联系我们。欢迎任何形式的合作,尤其是在自组装、水凝胶以及生物医药等方向的合作。
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Publications
Li, Y.; Wang, Z.; Zheng, J.; Su. H.; Lin, F.; Guo, K.; Feng, X.; Wesdemiotis, C.; Becker, M.L.; Cheng, S.Z.D.;* Zhang, W.-B.* Cascading One-Pot Synthesis of Single-Tailed and Asymmetric Multitailed Giant Surfactants. ACS Macro Lett., 2013, 2, 1026–1032. [Link] [PDF]
Abstract
Rapid and precise synthesis of macromolecules has been a grand challenge in polymer chemistry. In this letter, we describe a convenient, rapid, and robust strategy for a one-pot synthesis of various precisely defined giant surfactants based on polyhedral oligomeric silsesquioxane (POSS). The method combines orthogonal oxime ligation, strain-promoted azide–alkyne cycloaddition (SPAAC), and thiol–ene “click” coupling. The process is usually completed within 0.5–2 h and does not require chromatography methods for purification. With near quantitative conversion efficiency, the method yields giant surfactants with distinct topologies, including single-tailed and asymmetric, multitailed giant surfactants. Both polymer tail composition and POSS surface chemistry are controlled precisely and tuned independently, enabling the design and preparation of new classes of giant surfactants.