Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
We synthesized a series of quaternary ammonium acetates (QAAcOs) and assessed their solutions in DMSO as cellulose solvents. NAcO/DMSO did not dissolve cellulose; substitution of its methyl groups resulted in efficient cellulose solvents; NAcO/DMSO dissolved cellulose with difficulty. We attribute the inefficiency of both QAAcOs to: strong anion-cation interactions, NAcO; steric effects and cation-cation hydrophobic interactions, NAcO. Using isothermal titration calorimetry, we determined the enthalpies (H) of QAAcO (endothermic) dissolution, and QAAcO/cellobiose (exothermic) interactions; both in dimethyl sulfoxide/acetonitrile. The ratios of H are 5.34:1:1.45, for NAcO, NAcO, and NAcO, respectively, i.e., dissolution of the first and third QAAcO in the solvent requires more energy. The corresponding ratios for QAAcO interaction with cellobiose are: 0.74:1:0.79, i.e., the second QAAcO interacts more strongly with cellobiose. This order of solvent efficiency is corroborated by SEM images of regenerated cotton linters. Light scattering showed that dissolved cellulose can be regenerated as nanoparticles by dialysis.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.carbpol.2018.10.055 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
High-strength Janus cellulose/MXene composite paper from deep eutectic solvent-carboxymethylated eucalyptus fibers for electromagnetic shielding.
Int J Biol Macromol
September 2025
Plant Fiber Material Science Research Center, State Key Laboratory of Advanced Papermaking and Paper-based Materials, South China University of Technology, Guangzhou, 510640, China.
The development of cellulose-based electromagnetic shielding materials is critical for the advancement of sustainable, lightweight, and flexible electronic devices. Most high-performance composites rely on nanocellulose, which is expensive and energy-intensive to produce. In this work, we employ chemically modified conventional eucalyptus pulp fibers (non-nano) to fabricate Janus-structured cellulose/MXene composite papers.
View Article and Find Full Text PDFCellulosic Flexible Electronic Materials: Recent Advances in Structural Design, Functionalization, and Smart Applications.
Macromol Rapid Commun
September 2025
Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin, P. R. China.
Rapid advancement of flexible electronics has generated a demand for sustainable materials. Cellulose, a renewable biopolymer, exhibits exceptional mechanical strength, customizable properties, biodegradability, and biocompatibility. These attributes are largely due to its hierarchical nanostructures and modifiable surface chemistry.
View Article and Find Full Text PDFGravitational and Magnetic Bi-Field Assisted One-Step Quick Fabrication of Implantable Micro Zn-Ion Hybrid Supercapacitor.
Adv Healthc Mater
September 2025
Energy Storage Institute of Lanzhou University of Technology, School of Materials Science and Engineering, State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou, 730050, China.
The rapid advancement of implantable medical electronic devices has spurred substantial research into implantable energy storage systems. However, the presence of multiple film resistors in traditional sandwich structures impedes further enhancements in the electrochemical performance of supercapacitors and may result in contact failures between electrodes and separators or catastrophic short-circuit failures during tissue deformation. This study introduces a novel approach for fabricating all-in-one Zn-ion hybrid supercapacitors, which effectively mitigates performance degradation and safety concerns arising from interfacial issues.
View Article and Find Full Text PDFSodium carboxymethyl cellulose/polyvinyl alcohol/clove essential oil composite hydrogel with integrated antibacterial, antifreeze, and conductive properties as a wearable sensor for human motion monitoring.
Int J Biol Macromol
September 2025
College of Pharmacy, Guangxi University of Chinese Medicine, Nanning 530200, China. Electronic address:
Conductive hydrogels have emerged as promising materials for flexible wearable electronics; however, their facile fabrication remains challenging. This study presents an antifreeze, antibacterial, and conductive hydrogel constructed from biomacromolecules sodium carboxymethylcellulose (CMC-Na) and polyvinyl alcohol (PVA). The hydrogel was synthesized via a simple one-pot method in an ethylene glycol/water (EG/H₂O) binary solvent system, incorporating lithium chloride (LiCl) and clove essential oil (CEO), followed by a single freeze-thaw cycle.
View Article and Find Full Text PDFMussel-inspired polydopamine-functionalized ultralight cellulose aerogel for simple and portable extraction of synthetic cathinones from biological samples.
J Chromatogr A
September 2025
College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China.
Synthetic cathinones (SCs) are drugs of abuse that act on the central nervous system, producing psychoactive effects similar to those of amphetamines. Their greater accessibility compared with the traditional amphetamine-type stimulants has contributed to their increasing popularity in recent years. The analysis of SCs in biological samples is essential for documenting their consumption.
View Article and Find Full Text PDF