Facial Amphiphilicity-Induced Self-Assembly (FAISA) of Amphiphilic Copolymers,Macromolecules

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Facial Amphiphilicity-Induced Self-Assembly (FAISA) of Amphiphilic Copolymers
Macromolecules ( IF 5.1 ) Pub Date : 2019-12-13 , DOI: 10.1021/acs.macromol.9b02008
Md Anisur Rahman ₁ , Ye Sha ₁ , Moumita Sharmin Jui ₁ , Meghan E. Lamm ₁ , Yufeng Ma ₁ , Chuanbing Tang ₁

Affiliation

Amphiphilic molecules, including macromolecules and small surfactants, inherently self-assemble into a wide variety of nanostructures in selective solvents. However, the sequential structure for synthetic polymers is largely restricted to block copolymers. In this work, we report facial amphiphilicity-induced self-assembly (FAISA) of gradient amphiphilic copolymers. This new approach is demonstrated using facial amphiphilic multicyclic compounds. The facial amphiphilicity of bile acids allows cationic copolymers to form aggregates with different morphologies in aqueous solution. By tuning the compositions of hydrophilic and hydrophobic segments, these copolymers can self-assemble in water to produce spherical, vesicle, and rodlike nanostructures via supramolecular and electrostatic interactions. The hydrophobic interaction from multicyclic hydrocarbon moieties largely dictates the self-assembly process, which can be further modulated by integrating neutral hydrophilic poly(ethylene glycol) in copolymer compositions with additional stimuli such as temperature, charge density, and ionic screening.

中文翻译：

两亲共聚物的表面两亲性诱导自组装（FAISA）

两亲分子，包括大分子和小的表面活性剂，在选择性溶剂中固有地自组装成各种各样的纳米结构。但是，合成聚合物的顺序结构在很大程度上限于嵌段共聚物。在这项工作中，我们报告了梯度两亲共聚物的面部两亲性诱导自组装（FAISA）。使用面部两亲性多环化合物证明了这种新方法。胆汁酸的表面两亲性允许阳离子共聚物在水溶液中形成具有不同形态的聚集体。通过调节亲水和疏水链段的组成，这些共聚物可以在水中自组装，通过超分子和静电相互作用产生球形，囊状和棒状纳米结构。

更新日期：2019-12-13

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