Super-rapid and highly-efficient esterification of cellulose to achieve an accurate chromatographic analysis of its molecular weight

Zhou, Yan; Cheng, Yuxiang; Zhang, Jinming; Mi, Qinyong; Yin, Chengqing; Wu, Jin; Zhang, Jun

doi:10.1016/j.carbpol.2022.119301

Cited by 8 publications

(7 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cellulose is one of the most abundant natural polysaccharides in nature, which is considered an almost inexhaustible raw material and widely exists in trees, plants and fruits [ 118 ]. The molecular structure of cellulose consists of repeated β- d -glucopyranose via covalent action through acetal function, which contains a large number of hydroxyl groups.…”

Section: Sf-based Composites Prepared Using Ils For Biomedicine and T...mentioning

confidence: 99%

Recent Research Progress of Ionic Liquid Dissolving Silks for Biomedicine and Tissue Engineering Applications

Heng

Deng

Yang

et al. 2022

IJMS

View full text Add to dashboard Cite

Ionic liquids (ILs) show a bright application prospect in the field of biomedicine and energy materials due to their unique recyclable, modifiability, structure of cation and anion adjustability, as well as excellent physical and chemical properties. Dissolving silk fibroin (SF), from different species silkworm cocoons, with ILs is considered an effective new way to obtain biomaterials with highly enhanced/tailored properties, which can significantly overcome the shortcomings of traditional preparation methods, such as the cumbersome, time-consuming and the organic toxicity caused by manufacture. In this paper, the basic structure and properties of SF and the preparation methods of traditional regenerated SF solution are first introduced. Then, the dissolving mechanism and main influencing factors of ILs for SF are expounded, and the fabrication methods, material structure and properties of SF blending with natural biological protein, inorganic matter, synthetic polymer, carbon nanotube and graphene oxide in the ILs solution system are introduced. Additionally, our work summarizes the biomedicine and tissue engineering applications of silk-based materials dissolved through various ILs. Finally, according to the deficiency of ILs for dissolving SF at a high melting point and expensive cost, their further study and future development trend are prospected.

show abstract

Section: Sf-based Composites Prepared Using Ils For Biomedicine and T...mentioning

confidence: 99%

Recent Research Progress of Ionic Liquid Dissolving Silks for Biomedicine and Tissue Engineering Applications

Heng

Deng

Yang

et al. 2022

IJMS

View full text Add to dashboard Cite

show abstract

“…[23][24][25][26][27][28] The synthesis of cellulose benzoate with various degrees of substitution (DS), in an ionic liquid [Amim](Cl), 1butyl-3-methylimidazolium benzoate (BmimPhCOO), and CO 2 / DBU/DMSO, has been reported. [29][30][31] Cellulose benzoate is one of the potential derivatives of cellulose used for the separation of enantiomers by HPLC. [32][33] Recently, an author [30] has proposed an effective approach to determine the molecular weight parameters of cellulose and has found a novel technology to synthesize cellulose benzoate in an extremely rapid way, with a shorter reaction time, without a catalyst in an ionic liquid 1-butyl-3-methylimidazolium benzoate.…”

Section: Introductionmentioning

confidence: 99%

“…The esterification of cellulose is among the most versatile technique for the introduction of organic functional groups on cellulose backbone to synthesize new materials based‐cellulose [23–28] . The synthesis of cellulose benzoate with various degrees of substitution (DS), in an ionic liquid [Amim](Cl), 1‐butyl‐3‐methylimidazolium benzoate (BmimPhCOO), and CO 2 /DBU/DMSO, has been reported [29–31] . Cellulose benzoate is one of the potential derivatives of cellulose used for the separation of enantiomers by HPLC [32–33] .…”

Section: Introductionmentioning

confidence: 99%

“…[29][30][31] Cellulose benzoate is one of the potential derivatives of cellulose used for the separation of enantiomers by HPLC. [32][33] Recently, an author [30] has proposed an effective approach to determine the molecular weight parameters of cellulose and has found a novel technology to synthesize cellulose benzoate in an extremely rapid way, with a shorter reaction time, without a catalyst in an ionic liquid 1-butyl-3-methylimidazolium benzoate. The enhancements in the cellulose properties pave the way toward further approaches such as Molecular modeling for follow-up of the changes in their electronic properties.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis, Characterization, Thermal Stability, and Kinetic Degradation of Cellulose p‐Halide Benzoates in an Ionic Liquid 1‐Butyl‐3‐methylimidazolium Chloride

El Hamdaoui,

El Marouani,

El Hamidi

et al. 2023

ChemistrySelect

View full text Add to dashboard Cite

Cellulose p‐halide benzoates (C‐p‐HB) were synthesized by reacting microcrystalline cellulose (MCC) with p‐halide benzoyl chloride (p‐HBCl) namely; the p‐Iodobenzoyl chloride (p‐IBCl), p‐Bromobenzyl chloride (p‐BBCl), and p‐Nitrobenzoyl chloride( p‐NBCl) in ionic liquid 1‐butyl‐3‐methylimidazolium chloride [Bmim](Cl) at 60 °C for 2 h in the presence of 4‐dimethylaminopyridine (DMAP) as a base. The synthetic products were characterized through infrared spectrometry (FT‐IR), nuclear magnetic resonance (NMR) spectroscopy, XRD, and scanning electron microscopy (SEM). Then, the effects of p‐halide benzoate groups on the thermal degradation of C‐p‐HB esters with DS≈1 were investigated using thermogravimetric analysis under an inert atmosphere from room temperature to 600 °C at a heating rate of 5 °C/min. The DSC analysis was used to determine the glass temperature and heat of the reaction of C‐p‐HB esters. The results indicated that the C‐p‐HB was successfully synthesized in [Bmim](Cl) with a DS≈1. The kinetic parameters were determined by the Coats‐Redfern (CR) method. The corresponding kinetic parameters of the main degradation stages were also determined. The thermal stability of MCC was remarkably decreased through esterification with p‐HBCl. The Criado method was used to determine the most probable degradation functions. Thus, reaction orders F2 and F3 were most probably the functions that describe the degradation of C‐p‐HB.

show abstract

“…Natural cellulose-based fibers have several advantages over synthetic fibers, including low cost, low density, good strength, good stiffness, environmentally friendly, biodegradable, renewable, and health-safe [7][8]. The cellulose skeleton's hydroxyl groups can be chemically modified to form ester groups that are insoluble in water [8][9][10].…”

Section: ■ Introductionmentioning

confidence: 99%

Synthesis of Cellulose Acetate from Screw Pine (<i>Pandanus tectorius</i>) Leaves for Enhancing Water Permeability and Fouling Resistance of PVDF Membrane

Trisnawati,

Suryanti,

Pramono

et al. 2023

Indones. J. Chem.

View full text Add to dashboard Cite

Cellulose derivatives from natural resources continuously develop to find the best hydrophobic polymer-based membrane technology performance. This study was conducted to improve the hydrophilicity, performance, and anti-fouling of polyvinylidene fluoride (PVDF) membrane with cellulose acetate (CA) filler synthesized from screw pine (Pandanus tectorius) leaf cellulose. CA was synthesized by the Fischer esterification mechanism and the PVDF membrane was fabricated using the phase inversion method with 0.3% CA concentration. FTIR analysis of CA shows an absorption at 1700 cm−1 suggesting that the hydroxyl group of cellulose had been successfully substituted with an ester group (C=O), and CA has a high degree of substitution (DS) value of 3.50. Adding CA improved the hydrophilicity and anti-fouling properties of up to 86.45% of PVDF membranes. Furthermore, CA increased the value of water permeability 2–3 times than pristine PVDF membrane. The presence of CA enhanced the porosity of the PVDF membrane, which promoted the membrane's effectiveness for MB filtering. As a result, CA from screw pine leaf cellulose has promising features as a filler for PVDF membranes and potential dye filtration.

show abstract

Super-rapid and highly-efficient esterification of cellulose to achieve an accurate chromatographic analysis of its molecular weight

Cited by 8 publications

References 33 publications

Recent Research Progress of Ionic Liquid Dissolving Silks for Biomedicine and Tissue Engineering Applications

Recent Research Progress of Ionic Liquid Dissolving Silks for Biomedicine and Tissue Engineering Applications

Synthesis, Characterization, Thermal Stability, and Kinetic Degradation of Cellulose p‐Halide Benzoates in an Ionic Liquid 1‐Butyl‐3‐methylimidazolium Chloride

Synthesis of Cellulose Acetate from Screw Pine (<i>Pandanus tectorius</i>) Leaves for Enhancing Water Permeability and Fouling Resistance of PVDF Membrane

Contact Info

Product

Resources

About