303143
3,6-Dimethyl-1,4-dioxane-2,5-dione
99%
Sinonimo/i:
DL-Lactide, rac-Lactide, Lactide
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About This Item
Formula empirica (notazione di Hill):
C6H8O4
Numero CAS:
Peso molecolare:
144.13
Numero CE:
Numero MDL:
Codice UNSPSC:
12352100
ID PubChem:
NACRES:
NA.22
Prodotti consigliati
Livello qualitativo
Saggio
99%
Forma fisica
crystals
P. eboll.
142 °C/8 mmHg (lit.)
Punto di fusione
116-119 °C
Temperatura di conservazione
2-8°C
Stringa SMILE
CC1OC(=O)C(C)OC1=O
InChI
1S/C6H8O4/c1-3-5(7)10-4(2)6(8)9-3/h3-4H,1-2H3
JJTUDXZGHPGLLC-UHFFFAOYSA-N
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Categorie correlate
Descrizione generale
3,6-Dimethyl-1,4-dioxane-2,5-dione (or rac-lactide), is the 50:50 racemic mixture of D- and L-Lactide. Rac-lactide is a lactone derived from lactic acid that has attracted great interest in academia and commercial applications, as it is derived from abundant renewable resources. Rac-lactide can be ready polymerized via ring-opening polymerization, using a variety of metal or organocatalysts, yielding poly(D,L-lactide). While the resulting polymer is generally amorphous, the use of stereospecific catalysts can lead to heterotactic PLA, which exhibits some degree of crystallinity.
Applicazioni
3,6-Dimethyl-1,4-dioxane-2,5-dione can be used as a reactant:
- To synthesize multi-block copolymers of polylactide and polycarbonate.
- In the aluminum-catalyzed polymerization of propene oxide, lactide, and phthalic anhydride to produce multi-block polyesters.
Avvertenze
Warning
Indicazioni di pericolo
Consigli di prudenza
Classi di pericolo
Eye Irrit. 2
Codice della classe di stoccaggio
11 - Combustible Solids
Classe di pericolosità dell'acqua (WGK)
WGK 2
Punto d’infiammabilità (°F)
Not applicable
Punto d’infiammabilità (°C)
Not applicable
Dispositivi di protezione individuale
dust mask type N95 (US), Eyeshields, Gloves
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