Chem. J. Chinese Universities ›› 1997, Vol. 18 ›› Issue (3): 486.

• Articles • Previous Articles     Next Articles

Copolymerization of Glycolide with Lactide and Measurement of Reactivity Ratios

LIU Gang1, FANG Yue-E2, SHI Tian-Yi1   

  1. 1. Department of Material Science and Engineering, University of Science and Technology of China, Hefei 230026;
    2. Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026
  • Received:1996-03-26 Online:1997-03-24 Published:1997-03-24

Abstract: The copolymerization of glycolide-lactide is studied by using stannous octoate as an initiator.The contents of two monomer units in copolymers were determined by 1HNMRspectra.The reactivity ratios of monomers were evaluated by Kelen Tudos method and leastsquare-calculation.The monomer reactivity ratlos of glycolide and lactlde are r1=3.4O and r2=O.22 respectively.

Key words: Glycolide, Lactide, Copolymerization, Reactivlty ratio

TrendMD: