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Reversible Co-Self-Assembly and Self-Sorting Systems of Polymer Micelles in Water: Polymers Switch Association Partners in Response to Salts
Macromolecules ( IF 5.1 ) Pub Date : 2022-06-10 , DOI: 10.1021/acs.macromol.2c00766 Rikuto Kanno 1 , Kei Tanaka 1 , Takaya Ikami 1 , Makoto Ouchi 1 , Takaya Terashima 1
Macromolecules ( IF 5.1 ) Pub Date : 2022-06-10 , DOI: 10.1021/acs.macromol.2c00766 Rikuto Kanno 1 , Kei Tanaka 1 , Takaya Ikami 1 , Makoto Ouchi 1 , Takaya Terashima 1
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Reversible self-sorting and co-self-assembly systems of amphiphilic synthetic molecules in water would bring innovative methodologies in creating repeatedly transformable multicomponent self-assemblies that are responsive to the outer environment and stimuli. Herein, we report reversible co-self-assembly and self-sorting systems of the binary blends of amphiphilic random copolymers bearing quaternary ammonium cation and dodecyl groups and those carrying poly(ethylene glycol) (PEG) chains and dodecyl groups in water. The cation copolymers co-self-assembled with the PEG copolymers to form cation/PEG-fused micelles in pure water, while the fused micelles self-sorted into discrete cation or PEG micelles in the presence of salts. Importantly, those random copolymers reversibly switch association partners in response to the presence or absence of salts in water. The size of the fused micelles was dependent on their copolymer composition but independent of the mixing ratio of cation and PEG copolymers. The fused micelles thus coexisted with the extra amount of cation or PEG micelles. We further revealed that the co-self-assembly and self-sorting of their copolymers are driven by the exchange of polymer chains between micelles like the exchange of subdomains in protein self-assemblies.
中文翻译：
水中聚合物胶束的可逆共自组装和自分类系统：聚合物开关协会合作伙伴应对盐分
两亲性合成分子在水中的可逆自分类和共自组装系统将带来创新的方法来创建对外部环境和刺激作出反应的可重复转化的多组分自组装。在这里，我们报告了带有季铵阳离子和十二烷基的两亲无规共聚物的二元混合物的可逆共自组装和自分选系统，以及在水中带有聚（乙二醇）（PEG）链和十二烷基的共聚物。阳离子共聚物与PEG共聚物在纯水中自组装形成阳离子/PEG-稠合胶束，而在盐的存在下，稠合胶束自分选成离散的阳离子或PEG胶束。重要的，这些无规共聚物响应水中盐的存在或不存在而可逆地转换缔合伙伴。熔合胶束的大小取决于它们的共聚物组成，但与阳离子和 PEG 共聚物的混合比无关。因此，融合胶束与额外量的阳离子或 PEG 胶束共存。我们进一步揭示了它们共聚物的共自组装和自分类是由胶束之间的聚合物链交换驱动的，就像蛋白质自组装中子结构域的交换一样。
更新日期：2022-06-10
中文翻译：
水中聚合物胶束的可逆共自组装和自分类系统：聚合物开关协会合作伙伴应对盐分
两亲性合成分子在水中的可逆自分类和共自组装系统将带来创新的方法来创建对外部环境和刺激作出反应的可重复转化的多组分自组装。在这里，我们报告了带有季铵阳离子和十二烷基的两亲无规共聚物的二元混合物的可逆共自组装和自分选系统，以及在水中带有聚（乙二醇）（PEG）链和十二烷基的共聚物。阳离子共聚物与PEG共聚物在纯水中自组装形成阳离子/PEG-稠合胶束，而在盐的存在下，稠合胶束自分选成离散的阳离子或PEG胶束。重要的，这些无规共聚物响应水中盐的存在或不存在而可逆地转换缔合伙伴。熔合胶束的大小取决于它们的共聚物组成，但与阳离子和 PEG 共聚物的混合比无关。因此，融合胶束与额外量的阳离子或 PEG 胶束共存。我们进一步揭示了它们共聚物的共自组装和自分类是由胶束之间的聚合物链交换驱动的，就像蛋白质自组装中子结构域的交换一样。
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