0102
??????? ?? ????? ?? ????? ??? ????? ??? ????? ?????? ?? ??? ??????? ??? ???? ???
?????
????? ??? ??????? ????? ?? ????? ??????????? ??? ????? ?????? ?? ???? ???? ????? ?? ??? ???? ???? ????? ??? ???? ?? ??? ???? ???? ????? ?? ??? ??????? ??? ???? ??? ??? ????????????? ?? ?????? ???? L-????? ??????? ?? ??? ????? ?? ???? ???? ???? ???????? ?? ?????? ?? ??? ???? ??? ???? ??? ?? ????????? ????????? ???? ???????? ????????????? ?????????? ????? ?? ??? ????? ?????? ?? ??? ???? ?? ???? ??? ?? ??? ??? ??????? ?? ???? ???? ?? ???? ????? ?? ?????? ??? ????? ??? ??????? ???? ?? ???? ??????? ???? ??? ??? ???? ???? ???? ??? ?????? ??? ???? ????? ??? ???? ?? ??????? ???? ??? ??? ?????? ???? ?????? ????? ????? ??? ????? ??? ??????? ?? ???? ??????? ??? ???
????? 2
???????
?? ?????? ??? ?? ???? ????? ???? ???? ?? ???????? ??? ????? ??? ??????? ???? ?? ??? ???? ??????? ??? ???? ??? ?????? ?? ??????? ??? ?? ????? ??? ??????? ???? ???
???? ??????
??-????? ???? ?? ??? ??? ?? ??? ?? ??????? ???? ???? ?????? ???? ????? ??? ?????? ?? ??????? ?????? ??? ?? ??????? ????? ???? ??? ?????? ????? ?? ????? ???? ??? ???????? ???? ?????? ??? ????????? ?????? ?? ????? ??? ??? ??????? ???? ???? ?? ??? ??? D-methyl lactate ?? ???? ??? ????? ???? ????????? ??????? ???????? ??????? ????????????? ????? ??? ????? ???? ?????? ?????? ?? ???? ????? ??? ?? ????? ?? ???? ??? ??? ?? ?? ??? ?????? ?? ???? ??? ?? ???? ???? ????? ??? ??? ?????? ?? ??? ?? ????? ?? ??? ?? ???? ????? ???? ?? ???? ??? ?????? ??????? ??? ??? ??? ?? ????? ??? ?? ?? ???? ????? ?? ??? ????? ??????? ?? ??? ?? ??? ?? ??????? ??? ?? ???? ??? ?? ?? ?????? ??? ???????? ???? ??? ?????? ??? ???? ???? ?????? ?? ????? ?? ??? ??? ???? ?? ??? ?? ??? ??????? ??? ?? ???? ??? ? ??????????
?????? ???? ????
????? ???? ????? ?????? ???? ????? ???? (PLA) ?? ??? ??? ??? PLA ???? ?? ???? ??????? D ??? L isomers ?? ???? ??? ???? ?? ????? ???? ??? ??? D? L-polylactic ???? (PDLLA) racemic D ?? ????? ??? ??? ??? L-lactic ???? ??? ?? ????? ??? ??? ?? ?? ??????? ??????? ???? ???? ?????? ?? ??? ?? ??? ??? ??? ??? ????? ???? ??? ????? ?? ??? 50% ?? ????? % ?? ?? ?? ?????? ??????? ????? ??? L-polylactic acid (PLLA) ??? D-polylactic acid (PDLA) ?? ????? ?? ???? ?? ???????? ?? ????? ??? ???? ??? ??? ?? ?? ?????????? ??????? ???? ??? ?????? ?? ???? PDLLA ?? ???? ????? ???
??????? ?? ???????
| ????? ??????? ?????? ??????? | ? |
| ?????? ?? ???: | ????? ??????? |
| CAS: | 72-17-3 |
| MF: | C3H5NaO3 |
| ???????: | 112.06 |
| EINECS: | 200-772-0 |
| ????? ??????? ?????? ???????? | ? |
| ?????? ?? ???? | 17°C |
| ????? ??? ???? | 110°C |
| ????? | 1.33 |
| ?????? ?? ????? | 0.7 (??????? ???) |
| ?????? ?? ???? | 17.535 ??? ???? Hg (@ 20°C) |
| ?????? ?????? | 1.422-1.425 |
| ??????? ?? ???? ????? | 2-8 °C |
| ?? ????? | ??????? (95%) ??? ???? ?? ???? ?????? |
| ???? | ???? |
| ??? | ???? ???? |
| ???? | ?? ?? |
| ?? ??? | pH (7→35, 25oC) : 6.5~7.5 |
| ?? ??? ???? | 6.5 - 8.5 |
| ???? ??? ?? ????? | ????? |
| ??? | 148,635 |
| ?? ?? ??? | 4332999 |
| ???????: | ?????? |
| CAS ???? ??? ?? ????? | 72-17-3(CAS ???? ??? ?? ?????) |
| EPA ?????? ?????? ???? | ????? ??????? (72-17-3) |
| ???? | ?????? |
| ?????? ???? | ???? ??? ???? ??? ????? ????? ???? ??? ???? |
| ????? | ≤50 ???? |
| ???? | ≥60% / ≥70% |
| ???????? | ≤0.05% |
| ????? | ≤0.005% |
| ???? ?? ?? ???? | ??? |
| PH ??? | 5.0~9.0 |
| Pb | ≤2 ??? ????/??????? |
| ????????? | ≤0.5 ??? ????/??????? |
| ???????? ??? ??????? ????? | ≤0.025% |