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- W2368520636 abstract "High molecular weight polylactic acid (PLA) was prepared from the low molar mass prepolymer of lactic acid by means of polycondensation on twin-screw extruder. The influence of the extrusion temperature,catalyst content and screw revolution speed on the polycondensation was studied. The results showed that the highest molecular weight could be obtained by reactive extrusion at 150℃ when the catalyst content was 0.5% and the screw revolution speed was 75 r/min. The results of DSC analysis showed the crystallinity of the prepared PLA decreased to some extent." @default.
- W2368520636 created "2016-06-24" @default.
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- W2368520636 date "2006-01-01" @default.
- W2368520636 modified "2023-09-28" @default.
- W2368520636 title "Study on Preparation of Poly (Lactic Acid) on Twin-screw Extruder" @default.
- W2368520636 hasPublicationYear "2006" @default.
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