Highly efficient adsorbent for organic dyes based on a temperature‐ and pH‐responsive multiblock polymer |
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| Authors: | Zhenglong Yang Sai Chen Kangyu Fu Xinyan Liu Feng Li Yuchuan Du Peiting Zhou Zhihao Cheng |
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| Affiliation: | 1. Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Key Laboratory of Advanced Civil Engineering Materials of the Ministry of Education, College of Transportation Engineering, Tongji University, Shanghai, China;2. Key Laboratory of Advanced Civil Engineering Materials of the Ministry of Education, School of Materials Science and Engineering, Tongji University, Shanghai, China;3. School of Transportation Science and Engineering, Beihang University, 37 Xueyuan Road Haidian District, Beijing, China;4. Broadvision Engineering Consultants, National Engineering Laboratory for Land Transport Meteorological Disaster Control Technology, Kunming, China |
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| Abstract: | The self‐assembly behavior of amphiphilic block copolymers in selective solutions has many applications in environmentally responsive polymer materials. In this article, we report on a new amphiphilic, temperature and pH dual‐responsive poly[2‐dimethylaminoethyl methacrylate‐co‐(methyl methacrylate)]‐b‐poly[poly(ethylene glycol) methacrylate] [P(DMAEMA‐co‐MMA)‐b‐PPEGMA], which was synthesized via reversible addition–fragmentation chain‐transfer polymerization. The structure, self‐assembly behaviors, and process of organic dye adsorption were characterized by 1H‐NMR, ultraviolet–visible absorbance spectroscopy, and DLS measurements. P(DMAEMA‐co‐MMA)‐b‐PPEGMA was proven to be an outstanding adsorbent with excellent reversibility. Methyl red was released from the micelles as the pH value of the solution was adjusted to 4, and it could also be encapsulated again when the pH value was adjusted to 7.4 because of the sensitive pH‐responsive ability. It is promising that the triblock polymer had a positive effect on dye adsorption for environmental protection. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135, 46626. |
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| Keywords: | copolymers functionalization of polymers sensors and actuators |
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