POLY(DL-LACTIC ACID)

Base Information

• Chemical Name: POLY(DL-LACTIC ACID)
• CAS No.: 26969-66-4
• Molecular Formula: C6H8O4
• Molecular Weight: 0
• Mol file: 26969-66-4.mol

Synonyms:POLY(DL-LACTIC ACID);Poly(DL-lacticacid)-mw20000-30000;poly(lactide)

Chemical Property of POLY(DL-LACTIC ACID)

Chemical Property:

Purity/Quality:

98%min ^*data from raw suppliers

POLY(DL-LACTIC ACID) 95.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of POLY(DL-LACTIC ACID)

There total 109 articles about POLY(DL-LACTIC ACID) which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 88.2%

D,L-lactide (95-96-5,26680-10-4,26969-66-4,615-95-2) → (3R,6S)-3,6-dimethyl-1,4-dioxane-2,5-dione (13076-19-2,26680-10-4,26969-66-4,615-95-2)

Guidance literature:

With 1,4-diaza-bicyclo[2.2.2]octane; tris(pentafluorophenyl)borate; In toluene; at 20 ℃; for 10h;

Reference yield: 16.0%

acetylacetone (123-54-6,81235-32-7) → LACTIC ACID (849585-22-4,106989-11-1,26811-96-1,31587-11-8,26100-51-6) + 2-acetoxypropionic acid (535-17-1) + Ethylene glycol di-tert-butyl diether (26547-47-7) + 3-acetoxy-3-methylbutanoic acid (44983-17-7) + 2,5-hexanedione (110-13-4) + D,L-lactide (95-96-5,26680-10-4,26969-66-4,615-95-2)

Guidance literature:

With dihydrogen peroxide; In tert-butyl alcohol; for 36h; Reflux;

DOI:10.1007/s11172-013-0316-6

Reference yield: 4.0%

polylactic acid → (3R,6S)-3,6-dimethyl-1,4-dioxane-2,5-dione (13076-19-2,26680-10-4,26969-66-4,615-95-2) + D,L-lactide (95-96-5,26680-10-4,26969-66-4,615-95-2)

Guidance literature:

tin(IV) butyltin tris(2-ethylhexanoate); In water; at 218 ℃; under 31 Torr;

upstream raw materials:

ethyl 2-hydroxypropionate

L-Lactic acid

D-Lactic acid

LACTIC ACID

Downstream raw materials:

1,1-diphenylpropane-1,2-diol

lactanilide

(N,N'-bis(2,6-diisopropylphenyl)(tert-butyl)amidinato)tin(II)(OCH(Me)C(O)OCH(Me)C(O)OCHMe₂)

3,6-dimethyl-1,4-dioxane-2,5-dione

Refernces

• 1、 -. "Method for catalytically synthesizing lactide". Paragraph 0056-0076; 0081-0084; 0095-0096; 0099-0100. . Retrieved 2021/01/29.
• 2、 Cheung, Even,Alberti, Christoph,Enthaler, Stephan. "Chemical Recycling of End-of-Life Poly(lactide) via Zinc-Catalyzed Depolymerization and Polymerization". . p. 1224 - 1228. Retrieved 2020/11/03.