From Lactic Acid to Poly(lactic acid) (PLA): Characterization and Analysis of PLA and Its Precursors

The quality of the monomers lactic acid and lactide as well as the chemical changes induced during polymerization and processing are crucial parameters for controlling the properties of the resulting poly(lactic acid) (PLA) products. This review presents the most important analysis and characterizat...

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Bibliographic Details
Published in:Biomacromolecules 2011-03, Vol.12 (3), p.523-532
Main Authors: Inkinen, Saara, Hakkarainen, Minna, Albertsson, Ann-Christine, Södergård, Anders
Format: Article
Language:English
Subjects:
Applied sciences
CAPILLARY-ZONE-ELECTROPHORESIS
Chemistry
DIFFERENTIAL SCANNING CALORIMETRY
Drug Contamination
Exact sciences and technology
HYDROLYTIC DEGRADATION
ION MASS-SPECTROMETRY
Kemi
Lactic Acid - chemical synthesis
Lactic Acid - chemistry
Lactic Acid - standards
MELT RHEOLOGY
MOLECULAR-WEIGHT
NATURAL SCIENCES
NATURVETENSKAP
Organic polymers
Physicochemistry of polymers
POLY L-LACTIDE
POLY(L-LACTIC ACID)
Polycondensation
Polyesters
Polymers - chemical synthesis
Polymers - standards
Preparation, kinetics, thermodynamics, mechanism and catalysts
Properties and characterization
Quality Control
RHEOLOGICAL PROPERTIES
RING-OPENING POLYMERIZATION
Structure, morphology and analysis
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Summary:The quality of the monomers lactic acid and lactide as well as the chemical changes induced during polymerization and processing are crucial parameters for controlling the properties of the resulting poly(lactic acid) (PLA) products. This review presents the most important analysis and characterization methods for quality assessment of PLA and its precursors. The impurities typically present in lactic acid or lactide monomers and their possible origins and effects on resulting PLA products are discussed. The significance of the analyses for the different polymer production stages is considered, and special applications of the methods for studying features specific for PLA-based materials are highlighted.
ISSN:1525-7797
1526-4602
1526-4602
DOI:10.1021/bm101302t