Surfactant-Mediated Crystallization-Driven Self-Assembly of Crystalline/Ionic Complexed Block Copolymers in Aqueous Solution
Surfactant-Mediated Crystallization-Driven Self-Assembly of Crystalline/Ionic Complexed Block Copolymers in Aqueous Solution
复制标题
水溶液中表面活性剂介导的结晶驱动的结晶/离子络合嵌段共聚物的自组装
DOI：
10.1021/acs.langmuir.6b02905
复制
发表时间：
2017
期刊：
影响因子：
3.9
通讯作者：
Jiang Guohua
中科院分区：
文献类型：
--
作者：
Tong Zaizai;Zhang Runke;Ma Pianpian;Xu Haian;Chen Hua;Li Yanming;Yu Weijiang;Zhuo Wangqian;Jiang Guohua
通过顺序反应制备了一系列不同组成的结晶/离子复合嵌段共聚物（BCP）。具有不同亲水性组分的BCP可以自组装成不同形态的胶束，如具有不同结晶度的芯的纺锤形、棒状和球形胶束。以琥珀酸双（2-乙基己基）酯磺酸钠（AOT）为表面活性剂，诱导BCP在水溶液中的形态转变。引入的AOT可以与阳离子单元紧密结合，并且在电晕中形成水不溶性单元，导致束缚密度降低。因此，可以观察到从棒状到片状到纤维状再到树枝状胶束的形态变化。
A series of crystalline/ionic complexed block copolymers (BCPs) with various compositions have been prepared by sequential reactions. The BCPs with different hydrophilic fractions can self-assemble into various morphologies, such as spindlelike, rodlike, and spherical micelles with different crystallinity of the core. Bis(2-ethylhexyl) sulfosuccinate sodium salt (AOT) is added as a surfactant to induce the morphological transition of BCPs in aqueous media. The introduced AOT can be tightly bound to the cationic units, and a water-insoluble unit in the corona forms, leading to a reduced tethering density. Consequently, morphological variety changing from rods to platelets to fibril to dendrite-like micelles can be observed.