Self- and dis-assembly behavior of segmented wormlike nanostructures from an ABC triblock copolymer. Issue 43 (4th August 2021)

• Record Type: Journal Article
• Authors: Liang, Kaiyuan; He, Guohao; Wang, Qimeng; Xie, Zhiying; Li, Mingming; Li, Xin; Yu, Haizhou; Qiu, Xiaoyan
• Is Part Of: RSC advances. Volume 11:Issue 43(2021)
• Page Start: 26629
• Page End: 26634
• Publication Date: 2021-08-04
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/d1ra04580f
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Herein, PS- b -P2VP- b -PEO could self-assemble to form a kind of segmented wormlike nanostructures. Two formation mechanisms were observed. Moreover, such segmented wormlike nanostructures disassembled gradually when increasing the temperature. Abstract : Herein, we described the self-assembly of a triblock copolymer, poly(styrene- b -2-vinylpyridine- b -ethylene oxide) (PS- b -P2VP- b -PEO), in THF/water at room temperature to form segmented wormlike nanostructures. We found two different formation mechanisms of the segmented wormlike nanostructures from PS- b -P2VP- b -PEO with different molecular weights. Moreover, the dimension of such segmented wormlike nanostructures depends on the stirring rate. Interestingly, these wormlike nanostructures disassembled gradually when increasing the temperature, which is reversible. After cooling to room temperature the segmented wormlike micelles reformed gradually with stirring. Furthermore, neither intense stirring nor ultrasonic vibration could damage the structure of these wormlike nanostructures which proves their stability and potential application as drug delivery vehicles.