NMR study on the cellulose dissolution mechanism in CaCl2·6H2O–LiCl molten salt hydrate

Literature Information

Publication Date 2021-08-27
DOI 10.1039/D1CP02769G
Impact Factor 3.676
Authors

Rui Tang, Ling Han, Jing Yang, Min Xu, Min Ge, Yuanyuan Tang, Xiaobin Fu, Hongtao Liu, Yuan Qian


View Original

Abstract

As there is a rising interest in upgrading cellulose to high-performance bio-products, the studies on innovative reaction media and processes have been leaping forward. Green solvents in terms of cellulose dissolution and brief processes for upgrading are critical to green chemistry. However, most solvent systems generally exhibit defects in harsh pH operating windows with limited temperature ranges, environmental pollution, long reaction times, complicated processes, etc. In this work, we have provided a novel molten salt hydrate (CaCl2·6H2O–LiCl) as a green solvent and investigated the role of hydrated molten salts in the dissolution process via the solid state nuclear magnetic resonance (NMR) technique. The cellulose could be dissolved in CaCl2·6H2O–LiCl molten salt hydrated at 120 °C with 3.0% solubility and regenerated in-situ by cooling down to ambient temperature. The regenerated cellulose exhibited a high solubility and excellent stability. From 7Li single pulse NMR experiments, it was observed that two types of Li+ existed in the cellulose dissolution, and the Li+ significantly impacted the dissolving process and the dissolution ability of cellulose. This work would provide an environmental-friendly strategy to prepare cellulose solutions for biocompatible cellulose materials.

Related Literature

Front cover

Cover

DOI: 10.1039/B707041C

Back matter

Front/Back Matter

DOI: 10.1039/B706286A

Weak distance dependence of through-bond interactions in tetrahydro-4H-thiopyran-4-ylidene end-capped oligo(cyclohexylidenes); a computational survey

Cornelis A. van Walree, Alwin W. Marsman, Joop H. van Lenthe, Leonardus W. Jenneskens

2007-01-26 Paper

DOI: 10.1039/B616893K

Kinetics of NaCl nucleation in supercritical water investigated by molecular dynamics simulations

Norbert Lümmen, Bjørn Kvamme

2007-06-05 Paper

DOI: 10.1039/B703430J

Back cover

Front/Back Matter

DOI: 10.1039/B708246K

Fourier transform infrared spectroscopy and ab initio theory of acid–hydrogen sulfide clusters: H2S–HCl, D2S–DCl and H2S–(HCl)2

Pierre Asselin, Pascale Soulard, Bruno Madebène, Marius Lewerenz

2007-04-16 Paper

DOI: 10.1039/B702824E

Contents

Front/Back Matter

DOI: 10.1039/B704674J

Short-range interactions between non-ionic surfactant layers

Orlando J. Rojas, Cosima Stubenrauch

2006-10-19 Invited Article

DOI: 10.1039/B610295F

You might also like

Compound Q&A

What is the market or research trend for N-(4-Methoxybenzyl)-2-pyridinamine (CAS: 52818-63-0)?

N-(4-Methoxybenzyl)-2-pyridinamine (CAS: 52818-63-0) is increasingly being used ...

52818-63-0N-(4-Methoxybenzyl)-...
Compound Q&A

What precautions should be taken when handling Ethyl 4-(2-chlorophenyl)-1,3-thiazole-2-carboxylate (CAS: 1050507-06-6)?

When handling Ethyl 4-(2-chlorophenyl)-1,3-thiazole-2-carboxylate, appropriate p...

1050507-06-6Ethyl 4-(2-chlorophe...
Compound Q&A

What regulatory guidelines apply to diethyldiselane (CAS: 628-39-7)?

Diethyldiselane (CAS: 628-39-7) is classified under the Globally Harmonized Syst...

628-39-7Diethyldiselane
Compound Q&A

What is the market or research trend for oxocopper (CAS: 12053-18-8)?

The market for oxocopper (CAS: 12053-18-8) is primarily driven by its use in cat...

12053-18-8oxocopper; oxo-(oxoc...
Compound Q&A

What is the market or research trend for 5-{[(2-Methyl-2-propanyl)oxy]carbonyl}-5-azaspiro[2.4]heptane-7-carboxylic acid?

The market for 5-{[(2-Methyl-2-propanyl)oxy]carbonyl}-5-azaspiro[2.4]heptane-7-c...

1268519-54-55-{[(2-Methyl-2-prop...
Compound Q&A

What is 2-(1-Pyrrolidinyl)-4-pyridinamine (CAS: 35981-63-6)?

2-(1-Pyrrolidinyl)-4-pyridinamine is a chemical compound with the CAS number 359...

35981-63-62-(1-Pyrrolidinyl)-4...
Compound Q&A

What are the physical and chemical properties of 2-(3-Pyridinyl)-1-azabicyclo[2.2.2]octane (CAS: 91556-75-1)?

2-(3-Pyridinyl)-1-azabicyclo[2.2.2]octane (CAS: 91556-75-1) is a crystalline sol...

91556-75-12-(3-Pyridinyl)-1-az...
Compound Q&A

How is (S)-Alpha-allyl-proline hydrochloride (CAS: 129704-91-2) typically synthesized?

(S)-Alpha-allyl-proline hydrochloride is usually synthesized via a Wittig reacti...

129704-91-2(S)-Alpha-allyl-prol...
Compound Q&A

What is 3-Methyl-1,2-oxazole-5-carboxylic acid (CAS: 4857-42-5)?

3-Methyl-1,2-oxazole-5-carboxylic acid (CAS: 4857-42-5) is an organic compound w...

4857-42-53-Methyl-1,2-oxazole...
Compound Q&A

How is Lys-SMCC-DM1 (CAS: 1281816-04-3) typically synthesized?

Lys-SMCC-DM1 is synthesized via a multi-step process involving the coupling of S...

1281816-04-3Lys-SMCC-DM1

Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

Recommended Suppliers

Disclaimer
This page provides academic journal information for reference and research purposes only. We are not affiliated with any journal publishers and do not handle publication submissions. For publication-related inquiries, please contact the respective journal publishers directly.
If you notice any inaccuracies in the information displayed, please contact us at support@chemtradehub.com. We will promptly review and address your concerns.