Scaling Theory of Complex Coacervate Core Micelles,ACS Macro Letters

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Scaling Theory of Complex Coacervate Core Micelles
ACS Macro Letters ( IF 5.1 ) Pub Date : 2018-06-22 00:00:00 , DOI: 10.1021/acsmacrolett.8b00316
Artem M Rumyantsev ₁ , Ekaterina B Zhulina _{2,

3} , Oleg V Borisov _{1,

2,

3,

4}

Affiliation

We propose scaling theory of complex coacervate core micelles (C3Ms). Such micelles arise upon electrostatically driven coassembly of bis-hydrophilic ionic/nonionic diblock copolymers with oppositely charged ionic blocks or bis-hydrophilic diblock copolymers with oppositely charged macroions. Structural properties of the C3Ms are studied as a function of the copolymer composition, degree of ionization of the ionic blocks, and ionic strength of the solution. It is demonstrated that at sufficiently large length of the polyelectrolyte blocks the C3Ms may exhibit polymorphism; that is, morphological transitions from spherical to cylindrical micelles and further to lamellar structure or polymersomes may be triggered by increasing salt concentration. A diagram of states of micellar aggregates in the salt concentration/ionization degree coordinates is constructed, and scaling laws for experimentally measurable properties, e.g., micelle aggregation number and core and corona sizes, are found.

中文翻译：

复合凝聚核心胶束的尺度理论

我们提出了复杂凝聚核心胶束（C3Ms）的缩放理论。这种胶束产生于具有带相反电荷的离子嵌段的双亲水离子/非离子二嵌段共聚物或带有带相反电荷的大分子的双亲水二嵌段共聚物的静电驱动共组装。C3Ms 的结构性质作为共聚物组成、离子嵌段的离子化程度和溶液的离子强度的函数进行了研究。证明在足够长的聚电解质嵌段中，C3Ms 可能表现出多态性；也就是说，可以通过增加盐浓度来触发从球形胶束到圆柱形胶束以及进一步到层状结构或聚合物体的形态转变。

更新日期：2018-06-22

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