Journal of Guangdong University of Technology ›› 2018, Vol. 35 ›› Issue (05): 80-85.doi: 10.12052/gdutxb.170155

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Preparation of All-acrylic Diblock Copolymer Nano-objects via Alcoholic Photoinitiated RAFT Dispersion Polymerization

Liu Dong-dong, Tan Jian-bo, Zhang Li   

  1. School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, China
  • Received:2017-11-23 Online:2018-07-10 Published:2018-09-11

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Abstract: All-acrylic poly(2-hydroxyethyl acrylate)-poly(isobornyl acrylate) (PHEA25-PIBOAn) block copolymer nano-objects were prepared by photoinitiated RAFT dispersion polymerization of IBOA in ethanol/water at 40℃ using a PHEA macromolecular chain transfer agent (macro-CTA). Polymerizations proceeded rapidly upon exposure to visible light irradiation (λmax=405 nm, 0.4 mW/cm2) with high monomer conversion (≥ 95%) being achieved within 30 min. The kinetics of polymerization indicated that the polymerization could be separated into two stages. Gel permeation chromatography (GPC) analysis demonstrated that good control was maintained throughout the photo-PISA process, and the final block copolymers exhibited relatively low polydispersities (Mw/Mn ≤ 1.50). Spherical micelles and vesicles were prepared by this method.

Key words: photoinitiated, RAFT dispersion polymerization, block copolymer

CLC Number: 

  • TQ316.31
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[1] Zhang Yu-xuan, Huang Chun-dong, Tan Jian-bo. Synthesis of Polymer Nano-objects with Complex Morphologies via Polymerization-induced Self-assembly [J]. Journal of Guangdong University of Technology, 2018, 35(06): 100-106.
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