Aluminium Complexes Containing Imidazolylphenolate or Bis-imidazolylphenolate ligands: Synthesis，Characterization and Application in Ring-Opening Polymerization of ε-Caprolactone

• Main Authors: Chih-Chun Lung, 龍之雋
• Other Authors: Chi-Tien Chen
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/e7ybd4

碩士 === 國立中興大學 === 化學系所 === 104 === A series of imidazole-phenolate and bis-imidazole-phenolate ligand precursors R1-R3 and 2R1-2R3，[R1 = HOPhMeImph；R2 = HOPhMeImH；R3 = HOPhMeImMe ；2R1 = HOPhMebis-Imph ；2R2 = HOPhMebis-ImH；2R3 = HOPhMebis-ImMe] have been discovered. These ligand precursors can react with trimethyl aluminum to make complexes 14-18. Complexes 14-18 show good activity and low PDI toward ε-caprolactone ring-opening polymerization with 9-AnOH. The complex 16 shows good activity toward 100 and 200-fold concentrationε-caprolactone，but it shows less control when the concentration of ε-caprolactone reaches 300-fold. The complex 16 and 17 show activity towardε-caprolactone ring-opening polymerization without adding alcohol，while the molecular weight and PDI are much higher than respect.