Apr, 2015 - Mar, 2017
Development of Optical Resolution Polymerization of Polylactide
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research Grant-in-Aid for Challenging Exploratory Research
- Grant number
- 15K12245
- Japan Grant Number (JGN)
- JP15K12245
- Grant amount
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- (Total)
- 2,600,000 Japanese Yen
- (Direct funding)
- 2,000,000 Japanese Yen
- (Indirect funding)
- 600,000 Japanese Yen
Poly(L-lactide) (PLLA) is a top runner of biodegradable plastics and the properties iss highly related to the content of unit off D-lactic acid (D-unit) in PLLA. Therefore, the content of D-unit should be strictly controlled. In this study, the new control method of D-unit in PLA was examined by the crystallization during ring-opening cationic polymerization of partial racemic lactide in solution under shearing. The content of D-unit of the precipitated polymer crystals was much lower than the content of D-unit in feed. Further, it was found that the shearing rate influenced on the content of D-unit and higher rate made the content of D-unit lower.
- Link information
- ID information
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- Grant number : 15K12245
- Japan Grant Number (JGN) : JP15K12245