Self-Assembly Behavior and pH-Stimuli-Responsive Property of POSS-Based Amphiphilic Block Copolymers in Solution

Yiting Xu; Kaiwei He; Hongchao Wang; Meng Li; Tong Shen; Xinyu Liu; Conghui Yuan; Lizong Dai

doi:10.3390/mi9060258

Self-Assembly Behavior and pH-Stimuli-Responsive Property of POSS-Based Amphiphilic Block Copolymers in Solution

Micromachines (Basel). 2018 May 24;9(6):258. doi: 10.3390/mi9060258.

Authors

Yiting Xu¹, Kaiwei He², Hongchao Wang³, Meng Li⁴, Tong Shen⁵, Xinyu Liu⁶, Conghui Yuan⁷, Lizong Dai⁸

Affiliations

¹ Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, China. xyting@xmu.edu.cn.
² Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, China. hekaiwei@stu.xmu.edu.cn.
³ Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, China. 20720171150035@stu.xmu.edu.cn.
⁴ Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, China. 20720171150098@stu.xmu.edu.cn.
⁵ Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, China. 20720171150102@stu.xmu.edu.cn.
⁶ Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, China. lxy212@xmu.edu.cn.
⁷ Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, China. yuanch@xmu.edu.cn.
⁸ Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, China. lzdai@xmu.edu.cn.

Abstract

Stimuli-responsive polymeric systems containing special responsive moieties can undergo alteration of chemical structures and physical properties in response to external stimulus. We synthesized a hybrid amphiphilic block copolymer containing methoxy polyethylene glycol (MePEG), methacrylate isobutyl polyhedral oligomeric silsesquioxane (MAPOSS) and 2-(diisopropylamino)ethyl methacrylate (DPA) named MePEG-b-P(MAPOSS-co-DPA) via atom transfer radical polymerization (ATRP). Spherical micelles with a core-shell structure were obtained by a self-assembly process based on MePEG-b-P(MAPOSS-co-DPA), which showed a pH-responsive property. The influence of hydrophobic chain length on the self-assembly behavior was also studied. The pyrene release properties of micelles and their ability of antifouling were further studied.

Keywords: controlled release; polyhedral oligomeric silsesquioxane; protein adsorption resistance; self-assembly; stimuli-responsive polymer.

Abstract

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