Study on the Synthesis and Application of Glycol Diglycidyl Ether Terminated Polystyrene Oligomers

  • Mr Jian Zhang, WASM, Curtin University of Technology, Australia
  • Mrs Yao Zhang, WASM, Curtin University of Technology, Australia
  • Professor Anna Zheng, ECUST University, China
  • A/Professor Haipeng Wang, WASM, Curtin University of Technology, Australia
  • Mrs Fei Wu, School of Applied Chemistry, Curtin University of Technology, Australia
  • Mr Yuan Tian, WASM, Curtin University of Technology, Australia
  • Dr Yung Ngothai, School of Chemical Engineering, The University of Adelaide, Australia

    • Epoxy ether terminated polystyrene oligomer with molecular weight of 5000, was prepared by reaction of the living polystyrene (PS) carbanions with glycol diglycidyl ether (GDGE). The oligomer was characterized by GPC,FT-IR and 1H-NMR. The termination reaction time, temperature of termination and the terminator consumption were taken into account. The oligomer and antimicrobial (with end amino group) were blended in Hakke and grafted together at 160°C.The purified grafting copolymer was characterized by FT-IR. The results show that the termination efficiency increases with the increase in termination reaction temperature and time. The molar ratio of glycol diglycidyl ether and n-BuLi of 4:1 is the optimum addition dosage to obtain epoxy end-capped PS oligomer with highest content of end epoxy group within the accuracy of the experiment herein. The oligomer and antimicrobial can be easily grafted together in Hakke, and the grafting efficiency was found considerably high.