Controlling water permeability of composite films of polylactide acid, cellulose, and xyloglucan

Gårdebjer, Sofie; Larsson, Anette; Löfgren, Caroline; Ström, Anna

doi:10.1002/app.41219

Cited by 9 publications

(4 citation statements)

References 40 publications

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“…The heating was stopped at 300 °C; therefore, the exotherms were not compared initially. Presumably, the changes in melting enthalpies can be attributed to modifications in the degree of crystallinity due to grafting copolymerization [ 37 ]. The second approach showed endothermic and exothermic valleys (Figs.…”

Section: Resultsmentioning

confidence: 99%

Preparation of xyloglucan-grafted poly(N-hydroxyethyl acrylamide) copolymer by free-radical polymerization for in vitro evaluation of human dermal fibroblasts

González-Torres,

Martínez-Mata,

Ruvalcaba-Paredes

et al. 2024

J Mater Sci: Mater Med

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Xyloglucan is a rigid polysaccharide that belongs to the carbohydrate family. This hemicellulose compound has been widely used in biomedical research because of its pseudoplastic, mucoadhesive, mucomimetic, and biocompatibility properties. Xyloglucan is a polyose with no amino groups in its structure, which also limits its range of applications. It is still unknown whether grafting hydrophilic monomers onto xyloglucan can produce derivatives that overcome these shortcomings. This work aimed to prepare the first copolymers in which N-hydroxyethyl acrylamide is grafted onto tamarind xyloglucan by free-radical polymerization. The biocompatibility of these structures in vitro was evaluated using human dermal fibroblasts. Gamma radiation-induced graft polymerization was employed as an initiator by varying the radiation dose from 5–25 kGy. The structure of the graft copolymer, Xy-g-poly(N-hydroxyethyl acrylamide), was verified by thermal analysis, Fourier transform infrared spectroscopy, and nuclear magnetic resonance spectroscopy. The findings indicate that the degree of grafting and the cytotoxicity/viability of the xyloglucan-based copolymer were independent of dose. Notably, the grafted galactoxyloglucan exhibited efficient support for human dermal fibroblasts, showing heightened proliferative capacity and superior migration capabilities compared to the unmodified polymer. This copolymer might have the potential to be used in skin tissue engineering.

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Section: Resultsmentioning

confidence: 99%

Preparation of xyloglucan-grafted poly(N-hydroxyethyl acrylamide) copolymer by free-radical polymerization for in vitro evaluation of human dermal fibroblasts

González-Torres,

Martínez-Mata,

Ruvalcaba-Paredes

et al. 2024

J Mater Sci: Mater Med

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“…The storage modulus of the composite materials increases with xyloglucan content. It also increases water permeability …”

Section: Reinforcing Pla‐based Materials Through Nanocompositesmentioning

confidence: 99%

“…It also increases water permeability. [104] Starch-based PLA composites are also common. [105][106][107] Most often, starch is modified with hydrophobic side chains.…”

Section: Pla Green Compositesmentioning

confidence: 99%

Poly(lactic acid)‐based nanocomposites

Basu

Nazarkovsky

Ghadi

et al. 2016

Polymers for Advanced Techs

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Classic plastics accumulate in nature causing environmental pollution, yet as a counterbalance they benefit society in many ways. They are versatile, cost‐effective, and can be tailored to have desired properties. The global environment has led to the fabrication of commodity plastics from environmentally degradable polymers. Poly(lactic acid) (PLA) is the most promising among the environmentally friendly polymers available. PLA‐based plastics have mechanical, thermal, and transparency similar to traditional plastics, and they can be molded and fabricated using the same equipment and procedures. Their material properties are enhanced through nanocomposites, compatibilizers, plasticizers, and other fillers (flame retardant, ultraviolet filter, etc.). This review summarizes mass production techniques and property reinforcements (focusing on nanocomposites and plasticizers) for PLA‐based plastics for commodity use. Copyright © 2016 John Wiley & Sons, Ltd.

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“…They suggest that this fact is explained by the nucleation action of the organoclay, contributing to spontaneous crystallization of the PLA. Gårdebjer, S. et al recently reported also an increase in crystallinity of extruded PLA adding microcrystalline cellulose and xyloglucan [55].…”

Section: Differential Scanning Calorimetry (Dsc) and Gel Permeation Cmentioning

confidence: 99%

Barrier Properties of Polylactic Acid in Cellulose Based Packages Using Montmorillonite as Filler

et al. 2014

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Polylactic acid (PLA) and montmorillonite (CB) as filler were studied as coatings for cellulose based packages. Amorphous (AM) and semi crystalline (SC) PLA were used at different concentrations according to a 2 × 6 × 3 full factorial experimental design. CB loading was three concentrations and coating was performed by casting. Contact angle (CA), water vapor (WVP) and grease permeabilities were measured for each resultant package and were compared to commercial materials (Glassine Paper, Grease Proof Papers 1 and 2 produced commercially). Significant differences were found and the main factors were the type and concentration of PLA. The best values were: for grease penetration, +1800 s; WVP from 161.36 to 237.8 g·µm·kPa and CA from 69° to 73° for PLA-AM 0.5% and CB variable. These parameters are comparable to commercial packages used in the food industry. DSC revealed three different thermal events for PLA-SC and just T g for PLA-AM. Crystallinity was also verified, obtaining a ΔH crys of 3.7 J·g

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Controlling water permeability of composite films of polylactide acid, cellulose, and xyloglucan

Cited by 9 publications

References 40 publications

Preparation of xyloglucan-grafted poly(N-hydroxyethyl acrylamide) copolymer by free-radical polymerization for in vitro evaluation of human dermal fibroblasts

Preparation of xyloglucan-grafted poly(N-hydroxyethyl acrylamide) copolymer by free-radical polymerization for in vitro evaluation of human dermal fibroblasts

Poly(lactic acid)‐based nanocomposites

Barrier Properties of Polylactic Acid in Cellulose Based Packages Using Montmorillonite as Filler

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