화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.16, No.5, 872-875, September, 2010
DOI10.1016/j.jiec.2009.09.062  Export Citation
Large-scale microwave-assisted ring-opening polymerization of ε-caprolactone
Qi Xu, Chuanjie Zhang, Shaojun Cai1, Ping Zhu†, and Lijian Liu1
  • Key Laboratory of Green Processing and Function Textiles of New Materials of Ministry of Education, Wuhan University of Science and Engineering, Wuhan 430073, China
  • 1Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, Wuhan 430072, China
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To probe into the industrialization possibility of microwave-assisted ring-opening polymerization (ROP) of ε-caprolactone (ε-CL), it was performed with monomer mass from 750 to 2450 g using a self-designed industrial microwave oven (6000W) catalyzed by stannous octanoate (Sn(Oct)2) (M/Cat = 1000). The large-scale ROP of ε-CL proceeded smoothly at various microwave power levels (850, 1700, and 2550 W) and produced poly(ε-caprolactone) (PCL) with weight-average molar mass (Mw) from 66,000 to 12,2000 g/mol within 40 min in a yield over 93%. The structure of PCL was characterized by 1H and 13C NMR, FT-IR, DSC and WAXD. We propose that the microwave ROP of ε-CL is a potential technology to prepare PCL commercially.
Keywords:Microwave;Caprolactone;Polymerization;Scale-up
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