Effect of plasticizer and surfactant on the properties of poly(vinyl alcohol)/chitosan films

Stachowiak, Natalia; Kowalonek, Jolanta

doi:10.1016/j.ijbiomac.2020.08.001

Cited by 45 publications

(23 citation statements)

References 40 publications

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“…In this current study, BF and JR19F presented tensile strength close to this range, especially when we take into account the standard deviation ( Table 1 ); therefore, we may infer that the films have mechanical properties that are adequate for topical application as wound dressing. Liu et al [ 35 ] and Stachowiak [ 36 ] report that the presence of glycerol as plasticizer causes a breakdown of the polymeric network causing an increase in the flexibility of the films and a decrease in tensile strength. Therefore, it seems likely to infer that adjustment in the concentration of the plasticizer might result in improvement in the tensile strength presented by the films.…”

Section: Resultsmentioning

confidence: 99%

N-acylhydrazone Derivative-Loaded Cellulose Acetate Films: Thermoanalytical, Spectroscopic, Mechanical and Morphological Characterization

et al. 2021

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Cellulose acetate (ACT) is one of the most important cellulose derivatives due to its biodegradability and low toxicity, presenting itself as one of the main substitutes for synthetic materials in the development of wound dressing films. The incorporation of a N-acylhydrazonic derivative (JR19), with its promising anti-inflammatory activity, may represent an alternative for the treatment of skin wounds. This work aims to develop and to physicochemically and mechanically characterize ACT films containing JR19. The films were prepared using the ‘casting’ method and further characterized by thermoanalytical and spectroscopic techniques. In addition, mechanical tests and morphological analysis were performed. Thermogravimetry (TG) and differential scanning calorimetry (DSC) analyses showed that the thermal events attributed to excipients and films were similar, indicating the absence of physical incompatibilities between ACT and JR19. Infrared spectroscopy showed that JR19 was incorporated into ACT films. The characteristic band attributed to C≡N (2279 to 2264 cm−1) was observed in the spectra of JR19, in that of the physical mixture of JR19/ACT, and, to a lesser extent, in the spectra of JR19 incorporated into the ACT film, suggesting some interaction between JR19 and ACT. X-ray diffraction (XRD) evidenced the suppression of the crystallinity of JR19 (diffraction peaks at 8.54°, 12.80°, 14.09°, 16.08°, 18.19°, 22.65°, 23.59°, 24.53°, 25.70°, 28.16° and 30.27°2θ) after incorporation into ACT films. The mechanical tests indicated the adequate integrity of the films and their resistance to bending. The morphological characterization showed JR19 crystals along with a homogeneously distributed porous structure throughout the surface of the films with an average diameter of 21.34 µm and 22.65 µm of the films alone and of those incorporating JR19F, respectively. This study was able to characterize the ACT films incorporating JR19, showing their potential to be further developed as wound healing dressings.

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Section: Resultsmentioning

confidence: 99%

N-acylhydrazone Derivative-Loaded Cellulose Acetate Films: Thermoanalytical, Spectroscopic, Mechanical and Morphological Characterization

et al. 2021

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“…The contact angle technique is based on the measurement of non-covalent forces between the first monolayer of material and liquid [60]. The contact angles for diiodomethane (D) and glycerol (G) of obtained polymeric films were measured.…”

Section: Contact Angle and Surface Free Energy Measurementsmentioning

confidence: 99%

Design of Sodium Alginate/Gelatin-Based Emulsion Film Fused with Polylactide Microparticles Charged with Plant Extract

Prus-Walendziak

Kozłowska

2021

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This study aimed at designing emulsion films based on sodium alginate, gelatin, and glycerol, and their modification by the addition of lipids (cottonseed oil and beeswax). Film composition with the most promising properties was further modified by the incorporation of polylactide (PLA) microparticles with Calendula officinalis flower extract. PLA microspheres were obtained by the emulsion/solvent evaporation method. The size distribution of oily particles in emulsions was investigated. Mechanical properties, moisture content, UV-Vis spectra, and the color of films were analyzed, while biophysical skin parameters were assessed after their application to the skin. Moreover, the contact angles were measured, and the surface free energy of polymeric films was determined. An investigation of the amount of Calendula officinalis flower extract which can be incorporated into PLA microparticles was performed. The modification of the composition of films significantly influenced their physicochemical properties. The selected active ingredient in the form of plant extract was successfully incorporated into polymeric microparticles that were further added into the developed emulsion film. The condition of the skin after the application of obtained emulsion films improved. The prepared materials, especially containing microparticles with plant extract, can be considered for designing new cosmetic forms, such as cosmetic masks, as well as new topical formulations for pharmaceutical delivery.

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“…Its biodegradable nature, lm-forming capacity with low ethylene permeability and antimicrobial activity have aroused interest in its use for food packaging [6]. However, CHI lms are hydrophilic and have low extensibility, which restricts their application in functional lms [7]. Aiming to improve these properties, most current studies investigate the blending of CHI with biodegradable polyesters for biomedical applications, as well as for applications in the packaging market [1,7].…”

Section: Introductionmentioning

confidence: 99%

“…However, CHI lms are hydrophilic and have low extensibility, which restricts their application in functional lms [7]. Aiming to improve these properties, most current studies investigate the blending of CHI with biodegradable polyesters for biomedical applications, as well as for applications in the packaging market [1,7].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Surfactant on the Formation of Chitosan/ε-Polycaprolactone Blend Films for Food Packaging Applications

Gomes¹,

Silva²,

Freitas³

et al. 2021

Preprint

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The objective of this study was to develop and characterize chitosan-ε-polycaprolactone (CHI/PCL) polymer blends with Tween 80 as a compatibilizer for application in packaging. The blends were produced by casting, with up to 10% (w/w) PCL in the CHI matrix. These blends were characterized in terms of their microstructure, chemical interactions, mechanical and thermal properties, solubility and water vapor permeability (WVP). The micrographs showed microsphere-like structures from the PCL in the continuous phase of CHI. Fourier transform infrared spectroscopy (FTIR) indicated a high interaction between CHI amino groups and PCL carbonyls, resulting in blends with greater ductility than the pure CHI film, thus providing greater flexibility. In the crystallinity analyses, the presence of PCL favored an increase in crystalline regions, limiting the passage of light. Given the results, blends are an alternative for application in multilayer systems and can be considered for use as a biodegradable fraction in food packaging.

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Effect of plasticizer and surfactant on the properties of poly(vinyl alcohol)/chitosan films

Cited by 45 publications

References 40 publications

N-acylhydrazone Derivative-Loaded Cellulose Acetate Films: Thermoanalytical, Spectroscopic, Mechanical and Morphological Characterization

N-acylhydrazone Derivative-Loaded Cellulose Acetate Films: Thermoanalytical, Spectroscopic, Mechanical and Morphological Characterization

Design of Sodium Alginate/Gelatin-Based Emulsion Film Fused with Polylactide Microparticles Charged with Plant Extract

Effect of Surfactant on the Formation of Chitosan/ε-Polycaprolactone Blend Films for Food Packaging Applications

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