Preparation and Characterization of a Bioartificial Polymeric Material: Bilayer of Cellulose Acetate-PVA

Abstract

A new bioartificial polymeric material consisting of a bilayer of cellulose acetate and poly(vinyl alcohol) was successfully obtained by casting method. The material was characterized by Fourier transform infrared spectroscopy, contact angle, scanning electron microscopy, differential scanning calorimetry, gas permeability, water vapor permeability, and mechanical properties. The characterization indicates that two distinct and well-differentiated surfaces were achieved without detriment to the bulk properties. The interaction between natural and synthetic polymers indeed enhanced the gas permeability as well as the water vapor permeability in comparison to the original components, although mechanical properties were not substantially boosted by the combination of both. Moreover, beyond the interface, there were no detected interactions between the polymers as can be evidenced by the presence of a uniqueTgin the bilayer. The amalgamation of the relatively good mechanical properties with the two differentiated surfaces and the improvement of the permeability properties could indicate the potential of the material for being used in medicine.

Synthesis and Characterization of Poly(Vinyl Alcohol)-Chitosan-Hydroxyapatite Scaffolds: A Promising Alternative for Bone Tissue Regeneration

“…The bands at 1415 and 1330 cm −1 can be attributed to combination frequencies of CH and OH [ 58 ]. The CH 2 rocking band at 928 cm −1 and a peak at 848 cm −1 are associated with C–O stretching and these results are in a good agreement with other reports [ 59 , 60 , 61 , 62 ].…”

Cellulose Acetate Based Material with Antibacterial Properties Created by Supercritical Solvent Impregnation

“…Promising prospective of carvacrol applications has stimulated researchers to study its incorporation into different polymers (e.g., cyclodextrin, cellulose, gelatin, and chitosan) for different purposes [10,11,23,24]. Cellulose acetate (CA) holds a great promise for food, pharmaceutical, and medicinal applications since it is stable, biocompatible, bioresorbable, and derived from cellulose, the world's most abundant biopolymer [7,[25][26][27]. Its good properties stimulated research focused on the generation of CA structures (membranes, foams, microparticles etc.)…”

Antimicrobial action and clotting time of thin, hydrated poly(vinyl alcohol)/cellulose acetate films functionalized with LL37 for prospective wound‐healing applications

“…Rectangular‐shaped samples of 8 cm long, 2 cm width, and 0.08 cm thickness were used. CA is a brittle polymer which exhibits notably high Young's modulus and a very small elongation at break . Here, because of the mashed paper‐like consistency, 100 CA films could not be explored in terms of mechanical performance.…”