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- W2356354890 abstract "Poly(D,L-lactide)(PDLLA) was synthesized by ring-opening polymerization of D,L-lactide.The effects of the synthesis conditions such as monomer(lactide) purity,catalyst(stannous octoate) concentration,vacuum level,reaction time and temperature,were discussed.The PDLLA with a viscosity average molecular weight(M_η) beyond 20×10~4 was obtained under the optimum synthesis conditions of the lactide after being recrystallized 4 times as the monomer,the vacuum level of 0.098 MPa,reaction temperature of 150-160 ℃,reaction time of 6-8 h,and using 0.1%-0.18% stannous octoate as catalyst.The structure of polymer was characterized by FTIR and ~1H-NMR." @default.
- W2356354890 created "2016-06-24" @default.
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- W2356354890 date "2006-01-01" @default.
- W2356354890 modified "2023-09-28" @default.
- W2356354890 title "Study on the synthesis of poly(D,L-lactide)" @default.
- W2356354890 hasPublicationYear "2006" @default.
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