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Efficient Diethylzinc/Gallic Acid and Diethylzinc/Gallic Acid Ester Catalytic Systems for the Ring-Opening Polymerization of rac-Lactide.

Authors :
Żółtowska, ,2Karolina
Piotrowska, Urszula
Oledzka, Ewa
Sobczak, Marcin
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]

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