Swelling kinetics of cellulose / chondroitin sulfate membranes crosslinked with borax

IF 4.9 2区工程技术 Q1 MATERIALS SCIENCE, PAPER & WOOD Cellulose Pub Date : 2024-12-05 DOI:10.1007/s10570-024-06264-2

Juliano Brisola, Mayara Thamela Pessoa Paiva, Suzana Mali, Gizilene Maria de Carvalho

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Abstract

The use of by-products from the wood industry as an alternative to obtaining cellulose, using an eco-friendly process is essential for the sustainable production of high value-added bioproducts. In this research, the cellulose/chondroitin sulfate membranes were obtained using saw dust as the cellulose source. Initially, cellulose was extracted using peracetic acid (PA) in one (Cel1) and two cycles (Cel2) and mercerized with NaOH. Analysis of the products obtained by X-ray diffraction (WAXD), Fourier transform infrared spectroscopy (FTIR) and Ultraviolet–Visible Diffuse Reflectance Spectroscopy (UV–Vis DRS) confirmed that the extracted cellulose was type II and that the reduction of lignin (from 36 to 3.5%) did not depend on the number of bleaching cycles. Membranes with and without the addition of borax were obtained by dissolving cellulose in NaOH/urea/H2O (7/12/81% m/m), mixed with chondroitin sulfate (SC) in proportions 100/0; 90/10; 80/20 and 70/30 (% m/m). The effect of SC contents and the presence of borax on the properties of membranes produced was investigated. The results showed that the swelling ratio, equilibrium water content and kinetic mechanism of water absorption were influenced by the presence of borax and the amount of chondroitin sulfate. The results demonstrated that the properties of Cel/SC membranes could be modulated by the composition and had potential for application in the biomedical area.

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来源期刊

Cellulose 工程技术-材料科学：纺织

CiteScore

10.10

自引率

10.50%

发文量

580

审稿时长

3-8 weeks

期刊介绍： Cellulose is an international journal devoted to the dissemination of research and scientific and technological progress in the field of cellulose and related naturally occurring polymers. The journal is concerned with the pure and applied science of cellulose and related materials, and also with the development of relevant new technologies. This includes the chemistry, biochemistry, physics and materials science of cellulose and its sources, including wood and other biomass resources, and their derivatives. Coverage extends to the conversion of these polymers and resources into manufactured goods, such as pulp, paper, textiles, and manufactured as well natural fibers, and to the chemistry of materials used in their processing. Cellulose publishes review articles, research papers, and technical notes.