ArticleACS omega2026
Effect of Lignin Incorporation on Properties of Polyester Films of Lignin-Grafted-PCL/PLGA/PLA Polymers as Packaging Materials.
Article in ACS omega, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
9 authors.
Funding
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Abstract
This article reports on the effect of lignin on the properties of films made from lignin (LN) grafted to either PCL, PLGA, or PLA. LN-PCL/PLGA/PLA polymers were synthesized by an acylation reaction, and lignin grafting was confirmed using FTIR and H NMR spectroscopy. Films were made from the grafted polymers with a solvent-casting technique. The thermal, mechanical, and functional properties of the films were measured using standard methods and compared against the properties of the polyester films without lignin. Thermal analysis of the films showed glass transition temperatures of 55.9, 46.2, and 56 °C for LN-PCL, LN-PLGA, and LN-PLA, similar to those of the free polyesters. LN grafting reduced strain at break and yield strength, particularly when grafted to PLA, while having minimal impacts on PCL and PLGA. All LN-PCL/PLGA/PLA films presented an UV transmittance below 15%, an improvement over those of the polyesters measuring 60% and up, showing a high potential as a UV-shielding material. Contact angle analysis indicated no effect on the wettability of the films from incorporating lignin, with an average water contact angle of 82.71 ± 8.42°. While permeability was similar across polymers, ranging from 3.6 × 10
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Registered trials
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