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Synthesis and self-assembly behavior of thermoresponsive triblock copolymer

  • Functional Polymers
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Abstract

Block copolymers comprising thermosensitive poly(N-isopropylacrylamide) (PNIPAM) and hydrophobic poly(n-butyl acrylate) (PBA) blocks, were synthesized using the reversible addition-fragmentation chain transfer polymerization (RAFT), their thermosensitive behavior was studied by ultraviolet spectrophotometer (UV) and dynamic light scattering (DLS). The lower critical solution temperature (LCST) was strongly correlated to the hydrophobic/hydrophilic ratio of the copolymers. Their micellization and self-assembly behavior in dilute aqueous solution were studied by surface tension (SFT), DLS and TEM. The resulting block copolymers reversibly formed or deformed micellar assemblies during their LCSTs. The critical micelle concentration (CMC) was controlled by the composition of PBA and PNIPAM, indicating the successful formation of the block copolymers.

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Authors and Affiliations

  1. Key Laboratory of Eco-Chemical Engineering, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China

    Yueqin Yu, Suhua Li, Caifeng Leng, Taizai Xiong, Kunshan Yuan, Shaopeng Yan & Fuqiang Jia

Authors
  1. Yueqin Yu
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  2. Suhua Li
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  3. Caifeng Leng
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  4. Taizai Xiong
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  5. Kunshan Yuan
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  6. Shaopeng Yan
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  7. Fuqiang Jia
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Correspondence to Yueqin Yu.

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Yu, Y., Li, S., Leng, C. et al. Synthesis and self-assembly behavior of thermoresponsive triblock copolymer. Polym. Sci. Ser. B 56, 191–197 (2014). https://doi.org/10.1134/S1560090414020183

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  • DOI: https://doi.org/10.1134/S1560090414020183

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