Effect of Environment on Acetylated Cellulose Nanocrystal-Reinforced Biopolymers Films.

ABSTRACT: Cellulose nanocrystals (CNCs) were acetylated to the various parametrised degrees of substitution (DS), determined through attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR) and incorporated into alginate (ALG) and chitosan (CH) film-forming solutions. An investigation of morphology with scanning electron microscopy (SEM) revealed increased chemical compatibility with the CH matrix after acetylation, producing a smooth surface layer, while ALG mixed better with pristine CNCs. The ATR-FTIR analysis of films demonstrated inter-diffusional structural changes upon the integration of pristine/modified CNCs. Films were evaluated in terms of water contact angle (WCA), which decreased upon CNC addition in either of the biocomposite types. The H₂O barrier asse

SUBMITTER: Oberlintner A 

PROVIDER: S-EPMC10096506 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature