Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, D-14476 Potsdam, Germany.
J Am Chem Soc. 2011 Nov 9;133(44):17556-9. doi: 10.1021/ja207080j. Epub 2011 Oct 14.
This paper reports on the highly ordered and tunable inner structure of poly(ionic liquid) nanoparticles, which formed spontaneously by precipitation polymerization from water. Without added stabilizer, these "latexes" are much smaller (20-40 nm in diameter) than usual polymer latexes and exhibit either multilamellar or unilamellar vesicular morphology, depending on the tail length of the quaternizing alkyl chains. The simplicity in the synthesis and composition and the high complexity of the ordered structures that resemble liposomes expand the classical profile of homopolymer self-assembly. In addition, unidirectional superassembly to a nanoworm mesostructure is found at elevated concentrations, indicating that the ionic liquid liposomes are apt to integrate into further hierarchical assembly schemes.
本文报道了通过沉淀聚合自水中形成的聚离子液体纳米粒子具有高度有序和可调的内部结构。在没有添加稳定剂的情况下，这些“胶乳”比通常的聚合物胶乳小得多（直径为 20-40nm），并表现出多层或单层囊泡形态，这取决于季铵化烷基链的尾长。合成和组成的简单性以及类似于脂质体的有序结构的高度复杂性扩展了均聚物自组装的经典特征。此外，在较高浓度下发现了到纳米纤维介观结构的单向超组装，表明离子液体脂质体易于整合到进一步的分级组装方案中。
