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The graft copolymers of starch with polycaprolactone (PCL) were prepared through ring opening polymerization of ε‐CL in bulk using N‐methylimidazole (NMI) as catalyst. The graft reaction was detected by FTIR, NMR, and the resultant starch‐g‐PCL copolymers were characterized by DSC, MEB, and XRD. Homopolymerization of CL monomer did not occur during the grafting polymerization and hydrophobicity of...
This paper reports on the synthesis of biodegradable starch‐graft‐poly ϵ‐caprolactone (starch‐g‐PCL) in two steps. First, poly ϵ‐caprolactone (PCL) was modified on the terminal groups by using carbodiimidazole (CDI) as coupling agent. Then, the starch graft copolymers with PCL were prepared through a carbonate bond using carboimidazole function. Monofunctional and bifunctional reactive end‐group PCL...
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