Optimization and Elucidation of Esterification between Adipic Acid and 1,4-Butane Diol

Adipic acid와 1,4-butane diol의 에스테르화 반응 최적화 및 반응기작 규명

  • Chung, Suk-Jin (Department of Food Science and Technology, Seoul National University of Technology) ;
  • Park, Soo-Nam (Department of Fine Chemistry, Seoul National University of Technology)
  • 정석진 (서울산업대학교 식품공학과) ;
  • 박수남 (서울산업대학교 정밀화학과)
  • Published : 2003.06.01


Aliphatic polyester, especially poly(butylene adipate)(PBA), is quite biodegradable and one of the most promising polymer materials to be commercialized. Bis(4-hydroxybutyl) adipate (BHBA) formation stage is the first principal process in the production of PBA from adipic acid (AA) and 1,4-butane diol (BD). In this study, we investigated for the effective production of Bis(4-hydroxybutyl) adipate (BHBA), effects of molar ratio of adipic acid (AA) to 1,4-butane diol (BD), catalyst (tetrabutyl titanate, TBT) concentration, and temperature on the reaction rate of esterification between AA and BD were investigated. Initial reaction rate of the esterification decreased with increasing molar ratio of AA to BD and reaction temperature, whereas reaction constant increased with increase in catalyst-concentration. Activation energy values for catalyzed and uncatalyzed esterifications were 198.5 and 94.8 kJ/mol, respectively.


esterification;catalyst;temperature dependence


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