Cationic and anionic polyelectrolyte complexes of xylan and chitosan. Interaction with lignocellulosic surfaces

Mocchiutti, Paulina; Schnell, Carla N.; Rossi, Gerardo D.; Peresin, María Soledad; Zanuttini, Miguel Angel Mario; Galván, María Verónica

doi:10.1016/j.carbpol.2016.04.111

Cited by 39 publications

(19 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The structures of cellulose in wood and pulp have been extensively studied employing CPMAS 13 C NMR spectroscopy (Van der Hart and Newman and Hemmingson 1990;Newman 1992;Newman et al 1993;Lindgren et al 1995;Larsson et al 1997;Newman 1998;Wickholm et al 1998;Larsson et al 1999;Hult et al 2000;Maunu et al 2000). Other advanced techniques such as atomic force microscopy (AFM) and QCM-D monitoring have been used as support for a better knowledge of xylan and cellulose interactions (Binnig et al 1986;Ducker et al 1991;Fatisson et al 2009;Thio et al 2011;Chen et al 2016;Mocchiuttia et al 2016;Korolkov et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Study of xylan and cellulose interactions monitored with solid-state NMR and QCM-D

Dalvi¹,

Laine

Virtanen

et al. 2019

Holzforschung

View full text Add to dashboard Cite

Development of physical properties of bleached eucalyptus kraft pulp is typically based on the refining process. However, many studies have reported that xylan deposition is a viable alternative. As the mechanisms of xylan and cellulose interactions are not clear, the main goal of this study was to achieve a better understanding of these interactions. Considering that a sample of pulp enriched with xylan is a very complex matrix, a model system was developed. Cellulosic thin films were prepared by spincoating and the Langmuir-Schaefer (LS) method from trimethylsilylcellulose (TMSC). Their interactions with xylan were analyzed using the quartz crystal microbalance with dissipation (QCM-D) monitoring technique. The topological changes on cellulose were studied using atomic force microscopy (AFM). For the 13C solid-state nuclear magnetic resonance (NMR) studies, samples were prepared using commercial microcrystalline cellulose (MCC) and xylan. The xylan was extracted from bleached birch kraft pulp using a cold caustic extraction (CCE) method. The QCM-D monitoring showed deposition only with higher concentrations of xylan solution (1 mg · l−1) for the LS method. The AFM images showed that xylan deposits as agglomerates on the cellulose surface, and the NMR experiments showed that there are interactions for the more ordered region of the cellulose fiber and for the less-ordered region.

show abstract

Section: Introductionmentioning

confidence: 99%

Study of xylan and cellulose interactions monitored with solid-state NMR and QCM-D

Dalvi¹,

Laine

Virtanen

et al. 2019

Holzforschung

View full text Add to dashboard Cite

show abstract

“…There are two kinds of paper strength agents, including synthetic polymers and natural renewable polymers, used most frequently in the papermaking industry. Among the bio-based renewable polymers, chitosan with important functional groups such as hydroxyl, amino, and even acetamido groups has been found to be effective as a dry strength agent in the papermaking industry [28,37,40,41,42,43,44,45,46,47,48]. The structure of chitosan is similar as cellulose, making it possible to have strong bonding with fibers thus giving a dry and wet strength in papermaking.…”

Section: Wet-end Applicationmentioning

confidence: 99%

Application of Chitin/Chitosan and Their Derivatives in the Papermaking Industry

Song

Guan

et al. 2018

Polymers

View full text Add to dashboard Cite

Chitin/chitosan and their derivatives have become of great interest as functional materials in many fields within the papermaking industry. They have been employed in papermaking wet-end, paper surface coating, papermaking wastewater treatment, and other sections of the papermaking industry due to their structure and chemical properties. The purpose of this paper is to briefly discuss the application of chitin/chitosan and their derivatives in the papermaking industry. The development of their application in the papermaking area will be reviewed and summarized.

show abstract

“…Polyelectrolyte complexes (PECs) are spontaneously formed through electrostatic interactions when polyelectrolytes (PELs) with opposite charges are mixed . PECs can be used in drug delivery systems, to improve papermaking properties, for mechanical strengthening of cotton fibers, for flocculation, in tissue engineering, and in separation membranes …”

Section: Introductionmentioning

confidence: 99%

Saccharomyces cerevisae microfiltration performance of polycarbonate membranes containing chitosan‐based polyelectrolyte complexes

Vale

Paranhos

2019

J of Applied Polymer Sci

View full text Add to dashboard Cite

Polyelectrolyte complexes (PECs) were prepared using chitosan and sulfonated poly(ethylene terephthalate) by the mixture method. Fourier transform infrared spectroscopy, zeta potential, X-ray diffraction, and thermogravimetric analysis were used to characterize the chemical structure, surface charge, crystallinity, and thermal stability of the PECs. To evaluate how PECs affect the water vapor flux and the microfiltration performance, PECs solutions were spread via casting on polycarbonate microporous membranes. The increase in water vapor flux and in the Saccharomyces cerevisae microfiltration performance indicated that the presence of the PECs acts as fixed charges, changing significantly the transport properties of the polycarbonate matrix.

show abstract

Cationic and anionic polyelectrolyte complexes of xylan and chitosan. Interaction with lignocellulosic surfaces

Cited by 39 publications

References 24 publications

Study of xylan and cellulose interactions monitored with solid-state NMR and QCM-D

Study of xylan and cellulose interactions monitored with solid-state NMR and QCM-D

Application of Chitin/Chitosan and Their Derivatives in the Papermaking Industry

Saccharomyces cerevisae microfiltration performance of polycarbonate membranes containing chitosan‐based polyelectrolyte complexes

Contact Info

Product

Resources

About