期刊
JOURNAL OF OLEO SCIENCE
卷 60, 期 7, 页码 369-373出版社
JAPAN OIL CHEMISTS SOC
DOI: 10.5650/jos.60.369
关键词
glyceric acid; glycerol use; poly(lactic acid); biorefinery; bioplastic
资金
- New Energy and Industrial Technology Development Organization (NEDO) of Japan [08A26202c]
- Japan-U.S. cooperation project for research and standardization of Clean Energy Technologies [heisei 22.05.20]
Utilization of excess glycerol supplies derived from the burgeoning biodiesel industry has recently become very important. Glyceric acid (GA) is one of the most promising glycerol derivatives, and it is abundantly obtained from glycerol by a bioprocess using acetic acid bacteria. In this study, a novel branched-type poly(lactic acid) (PLA) was synthesized by polycondensation of lactide in the presence of GA. The resulting branched PLA had lower crystallinity and glass transition temperatures than the conventional linear PLA, and the peak associated with the melting point of the branched PLA disappeared. Moreover, in a blend of the branched polymer, the crystallization of the linear PLA occurred at a lower temperature. Thus, the branched PLA containing GA synthesized in this study could potentially be used as a novel bio-based modifier for PLA.
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