Supramolecular guests in solvent driven block copolymer assembly: From internally structured nanoparticles to micelles.
Supramolecular guests in solvent driven block copolymer assembly: From internally structured nanoparticles to micelles.
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DOI：
10.1039/c3py00750b
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发表时间：
2013-10-07
影响因子：
4.6
通讯作者：
Connal LA
中科院分区：
文献类型：
--
作者：
Klinger D;Robb MJ;Spruell JM;Lynd NA;Hawker CJ;Connal LA
不同氢键客体与聚（2-乙烯基吡啶）-嵌段聚（苯乙烯）之间的超分子相互作用可以利用单个嵌段共聚物（BCP）在分散体中制备显着不同的自组装纳米结构。BCP的特性可以通过定制优先结合到P2 VP嵌段的客体的性质来有效地控制。例如，疏水客体的掺入产生疏水BCP复合物，其在自组装时形成相分离的纳米颗粒。相反，亲水性客体的引入导致在水中形成球形胶束的两亲性BCP络合物。调节自组装行为和从单个BCP基底获得显著不同的纳米结构的能力证明了由超分子相互作用驱动的BCP自组装的特殊多功能性。这种方法代表了一种新的方法，将使复杂的，响应自组装纳米结构的进一步设计。
Supramolecular interactions between different hydrogen-bonding guests and poly(2-vinyl pyridine)-block-poly (styrene) can be exploited to prepare remarkably diverse self-assembled nanostructures in dispersion from a single block copolymer (BCP). The characteristics of the BCP can be efficiently controlled by tailoring the properties of a guest which preferentially binds to the P2VP block. For example, the incorporation of a hydrophobic guest creates a hydrophobic BCP complex that forms phase separated nanoparticles upon self-assembly. Conversely, the incorporation of a hydrophilic guest results in an amphiphilic BCP complex that forms spherical micelles in water. The ability to tune the self-assembly behavior and access dramatically different nanostructures from a single BCP substrate demonstrates the exceptional versatility of the self-assembly of BCPs driven by supramolecular interactions. This approach represents a new methodology that will enable the further design of complex, responsive self-assembled nanostructures.