Process Dependent Complexity in Multicomponent Gels.
Process Dependent Complexity in Multicomponent Gels.
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多组分凝胶中工艺相关的复杂性。
DOI：
10.1002/marc.202200709
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发表时间：
2023
影响因子：
4.6
通讯作者：
Randle RI
中科院分区：
文献类型：
--
作者：
Randle RI
混合低分子量胶凝剂（LMWG）可用于在多功能凝胶内联合收割机组合各个组分的有利性质。这样的多组分系统本身就足够复杂，但组合组分的方法通常不被认为是影响自组装的因素。在本文中，研究了两种多组分体系，其包含基于萘的二肽水凝胶因子和两种改性萘二酰亚胺（NDI）之一，其中一种形成凝胶，另一种不形成凝胶。使用流变学、小角中子散射（SANS）和吸收光谱法探测这些系统，检查形成的结构及其凝胶特性（当从两种组分的混合粉末或通过混合每种组分的预形成溶液制备溶液时）。发现通过改变制备方法，可以在形成的支撑凝胶网络的纤维内诱导自分选或共组装。
Mixing low molecular weight gelators (LMWGs) can be used to combine favorable properties of the individual components within a multifunctional gel. Such multicomponent systems are complex enough in themselves but the method of combining components is not commonly considered something to influence self‐assembly. Herein, two multicomponent systems comprising of a naphthalene‐based dipeptide hydrogelator and one of two modified naphthalene diimides (NDIs), one of which forms gels, and the other does not, are investigated. These systems are probed, examining the structures formed and their gel properties (when preparing a solution from either a mixed powder of both components or by mixing pre‐formed solutions of each component) using rheology, small angle neutron scattering (SANS), and absorbance spectroscopy. It is found that by altering the method of preparation, it is can either induce self‐sorting or co‐assembly within the fibers formed that underpin the gel network.