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Efficient Diethylzinc/Gallic Acid and Diethylzinc/Gallic Acid Ester Catalytic Systems for the Ring-Opening Polymerization of rac-Lactide.
- Source :
-
Molecules . Dec2015, Vol. 20 Issue 12, p21909-21923. 15p. 3 Diagrams, 4 Charts, 6 Graphs. - Publication Year :
- 2015
-
Abstract
- Polylactide (PLA) represents one of the most promising biomedical polymers due to its biodegradability, bioresorbability and good biocompatibility. This work highlights the synthesis and characterization of PLAs using novel diethylzinc/gallic acid (ZnEt2/GAc) and diethylzinc/propyl gallate (ZnEt2/PGAc) catalytic systems that are safe for human body. The results of the ring-opening polymerization (ROP) of rac-lactide (rac-LA) in the presence of zinc-based catalytic systems have shown that, depending on the reaction conditions, "predominantly isotactic", disyndiotactic or atactic PLA can be obtained. Therefore, the controlled and stereoselective ROP of rac-LA is discussed in detail in this paper. [ABSTRACT FROM AUTHOR]
- Subjects :
- *DEPOLYMERIZATION
*DIETHYLZINC
*POLYMERIZATION
*CHEMICAL reactions
*CATALYSIS
Subjects
Details
- Language :
- English
- ISSN :
- 14203049
- Volume :
- 20
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Molecules
- Publication Type :
- Academic Journal
- Accession number :
- 111970904
- Full Text :
- https://doi.org/10.3390/molecules201219815