Processing and characterization of poly(lactic acid) films plasticized with commercial adipates

By Verónica P. Martino, A. Jiménez, R. Ruseckaite. 2009

137 citations recorded by the source corpus.

The high brittleness of Poly(lactic acid) is a major drawback for flexible food packaging applications. The aim of this work is to evaluate the potential use of commercial adipates as PLA plasticizers to obtain trans- parent films with enhanced mechanical properties. Proc- essing conditions were optimized. The effect of plasticizers was characterized by a decrease on the glass transition temperature and an increase in PLA chains mobility, which induced crystallization on heating. Thermal stability was not significantly affected, and mechanical properties showed an increase in ductility with the plasticizer con- tent. Oxygen transmission rate was also measured to eval- uate the effect of the microstructures generated by the presence of these additives in PLA-based films. The mono- meric adipate presented lack of homogeneity that makes films plasticized with this additive not useful for the intended application. Good compatibility was observed between polyadipates (up to 20 wt %) and the matrix, making them promising materials for biodegradable films manufacturing. V C 2009 Wiley Periodicals, Inc. J Appl Polym Sci 112: 2010-2018, 2009

Subfields: Biomaterials, Process Chemistry and Technology

View Paper: https://www.semanticscholar.org/paper/8e7ddc2d82d5bb34b3c92e07b2269a72f862e845

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In Biomaterials

1. J. Kenny
2. E. Fortunati
3. M. Arrieta
4. N. Burgos
5. A. Jiménez
6. Juan Carlos Cortés López
7. F. Dominici
8. H. Yang

In Process Chemistry and Technology

1. N. Burgos
2. A. Jiménez
3. J. Kenny
4. M. Arrieta
5. Juan Carlos Cortés López

Citations in the corpus

• Characterization of PLA-limonene blends for food packaging applications (2013, background): “It is widely known that PLA plasticization is required in order to improve ductility [18, 19].”
• Characterization and ageing study of poly(lactic acid) films plasticized with oligomeric lactic acid (2013, background): “1 315 14 70 8 the freevolumeof thematrixcausedby the additionof theplasticizer, as reported by other authors [14,29].”
• Processing and characterization of plasticized PLA/PHB blends for biodegradable multiphase systems (2015, background): “Some weight losses for pure OLA were observed at 200°C, but they were moderate in comparison with other plasticizers for PLA used in previous works in the research group [27, 28].”
• Properties and medical applications of polylactic acid: A review (2015, methodology): “Transparent film of PLA/polyadipates blend and related thermal and structural properties [57]”