The synthesis and characterization of a new family of dendritic surfactants called DendriTAC are described. Two series of single- or double-tailed surfactants containing hydrophobic hydrocarbon or fluorocarbon chains grafted onto Tris(hydroxymethyl)aminomethane (or TRIS)-derived oligomeric polar heads via a copper(I)-mediated click reaction have been prepared. A total of 13 new dendritic surfactants have been obtained by grafting linear polyTRIS branches of variable average degree of polymerization (DPn) onto a single or double-tailed fluorinated or hydrocarbon chain of variable length, via a dendritic central scaffold of generation G₁ or G₂. Structural parameters of the surfactant assemblies in solution [radii of gyration (R_G), volume-weighted hydrodynamic radii (R_H), and aggregation numbers (N_ag)] were assessed by small-angle X-ray scattering and dynamic light scattering. Overall, regardless of their tree-like structure (i.e., generation type), length of the headgroup (DPn), and nature (hydrocarbonated or fluorinated, single or double-tail) or length of the hydrophobic chains, self-assembling properties of H/F-DendriTACs are in agreement with usual trends of surfactant assemblies, e.g., as a function of chain length or polar head volume. Thus, thanks to their great structural versatility, H/F-DendriTACs can provide highly tunable self-assembly morphologies that can be adapted to specific applications.

中文翻译：

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带有支化 TRIS 衍生低聚物作为极性头基的新型两亲性树枝的合成、表征和自组装性能

描述了称为 DendriTAC 的新型树枝状表面活性剂家族的合成和表征。制备了两个系列的单尾或双尾表面活性剂，其中包含通过铜（I）介导的点击反应接枝到三（羟甲基）氨基甲烷（或TRIS）衍生的低聚极性头上的疏水性烃或氟碳链。通过 G ₁或 G代树枝状中心支架，将可变平均聚合度 (DPn) 的线性 PolyTRIS 支链接枝到可变长度的单尾或双尾氟化链或烃链上，获得了总共 13 种新型树枝状表面活性剂₂ .通过小角 X 射线散射和动态光散射评估溶液中表面活性剂组装体的结构参数 [回转半径 ( R _G )、体积加权流体动力学半径 ( R _H ) 和聚集数 ( N _ag )]。总体而言，无论其树状结构（即生成类型）、头基长度（DPn）、性质（碳氢化或氟化、单尾或双尾）或疏水链的长度，H的自组装特性/F-DendriTAC 与表面活性剂组装体的通常趋势一致，例如，作为链长或极性头体积的函数。因此，由于其良好的结构多功能性，H/F-DendriTAC 可以提供高度可调的自组装形态，可适应特定的应用。