School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom.
J Am Chem Soc. 2013 Aug 21;135(33):12180-3. doi: 10.1021/ja404100w. Epub 2013 Jun 3.
We report the preparation of multi-armed micelles and block co-micelles using the crystallization-driven self-assembly of crystalline-coil polyferrocenylsilane block copolymers from nanocrystals of the homopolymer. The resulting multi-armed micelles possessed hierarchical multipod structures with monodisperse and tunable arm lengths. The termini of the arms remained active to the addition of further block copolymer unimers, and multi-armed block co-micelles with segmented arm chemistries and variable segment sequences were prepared. Coronal cross-linking followed by nanocrystal dissolution led to the release of non-centrosymmetric AB cylindrical diblock co-micelles.
我们报告了使用结晶诱导的均聚物纳米晶自组装制备多臂胶束和嵌段共胶束的方法，这种胶束是由结晶-无规共聚物聚二茂铁硅烷嵌段共聚物组成的。所得的多臂胶束具有分级多足结构，具有单分散和可调臂长。臂的末端仍然对进一步的嵌段共聚物单体的加入具有活性，并且可以制备具有分段臂化学和可变序列的多臂嵌段共胶束。冠状交联后纳米晶溶解导致非中心对称 AB 圆柱二嵌段共胶束的释放。
