화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.17, No.5, 289-295, May, 2009
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Synthesis and Characterization of Low Viscosity Aromatic Hyperbranched Polyester Epoxy Resin
Daohong Zhang1, 2, †, Demin Jia2, 3, †, and Zihu Zhou4, 3
  • 1Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education,Hubei Province, South-central University for Nationalities, Wuhan, Hubei 430074, China
  • 2College of Materials Science and Engineering, South China University of Technology, Guangzhou,Guangdong 510641, China
  • 3, China
  • 4College of Materials Science and Engineering, Guangzhou Supe Chemical Co., LTD, Guangzhou, Guangdong 510641, China
E-mail:,
Low viscosity aromatic hyperbranched polyester epoxy resin (HTBE) was synthesized by the reaction between epichlorohydrin (ECH) and carboxyl-end hyperbranched polyester (HTB) which was prepared from inexpensive materials A2 (1,4-butanediol glycol, BEG) and B3 (trimellitic anhydride, TMA) by pseudo one-step method. The molar mass of the HTB was calculated from its acid value by “Recursive Probability Approach”. The degree of branching (DB) of the HTB was characterized by model compounds and 1H NMR-minus spectrum technology, and the DB of the HTB was about 0.47~0.63. The viscosity and epoxy equivalent weight of the HTBE were 3,600~5,000 cp and lower than 540 g/mol respectively. The reaction mechanism and structure of the AB2 monomer, HTB and HTBE were investigated by MS, 1H NMR and FTIR spectra technology. The molecular size of HTBE is under 8.65 nm and its shape is ellipsoid-like as determined by molecular simulation.
Keywords:hyperbranched epoxy resin;low viscosity;degree of branching;molecular simulation.
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