Effect of temperature on the interaction of cellulose/1-allyl-3-methyl imidazolium chloride solution

Xiao, Yafei; Zhang, Minghua; Dong, Dawei; Gong, Peixin; Ye, Yingqing; Peng, Shuhua; Deng, Mingyu; Fan, Minmin; Cao, Ya; Wang, Ke

doi:10.1016/j.molliq.2020.114670

Cited by 4 publications

(3 citation statements)

References 53 publications

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“…In a comparison of the raw WPC, after dissolution and coagulation, the stretching vibrational band of OH is weakened and moves to a low wavenumber, which indicates that the hydrogen bonds between cellulose chains are reduced. In addition, the absorption peaks that occur at 2900 cm –1 are related to C–H stretching and the band at 1640 cm –1 is correlated with adsorbed water in cellulose and hemicellulose . The vibrational band of OCH occurs at approximately 1429 cm –1 .…”

Section: Resultsmentioning

confidence: 99%

“…In addition, the absorption peaks that occur at 2900 cm −1 are related to C−H stretching and the band at 1640 cm −1 is correlated with adsorbed water in cellulose and hemicellulose. 32 The vibrational band of OCH occurs at approximately 1429 cm The band that occurs at approximately 898 cm −1 as an amorphous band is related to the disordered structure of sample. 17 By comparison, it is found that the amorphous bands of the RCFs obtained from ethanol and EG are significantly stronger than those obtained from water and move to the place with a lower wavenumber, suggesting a higher intensity for disordered structures in regenerated samples, as shown in Figure 3.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Effects of Glucose and Coagulant on the Structure and Properties of Regenerated Cellulose Fibers

et al. 2023

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Regenerated cellulose fiber (RCF) is an environmentally friendly material with outstanding mechanical properties and recyclability, which has been used in a large number of applications. However, during the spinning process using ionic liquids (ILs) as solvents, the dissolved cellulose continues to degrade and even produces degradation products such as glucose, which can enter the recycled solvent and coagulation bath. The presence of glucose can seriously affect the performance of the produced RCFs and hinder their applications, so it has become critical to clarify the regulation and mechanism of this process. In this study, 1-ethyl-3-methylimidazolium diethyl phosphate ([Emim]DEP) with different glucose contents was selected to dissolve wood pulp cellulose (WPC) and obtained RCFs in different coagulation baths. The effect of glucose content in spinning solution on fiber spinnability was investigated by rheological analysis, and the influence of coagulation bath composition and glucose content on the morphological characteristics and mechanical properties of the RCFs was also studied in depth. The results indicated that the morphology, crystallinity, and orientation factor of RCFs were influenced by the presence of glucose in the spinning solution or coagulation bath, resulting in corresponding changes in mechanical properties, which can provide practical reference and guidance for the industrial production of new type fiber.

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Section: Resultsmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

Effects of Glucose and Coagulant on the Structure and Properties of Regenerated Cellulose Fibers

et al. 2023

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“…As it is also reported, the hydroxyl groups in cellulose can form the hydrogen bond interaction with ILs, which makes cellulose soluble in ILs. [29] Therefore, ILs are likely to contribute to the dispersion of cellulose in PVDF matrix. Most importantly, the introduction of cellulose in the PVDF/ILs system probably restrict ion movement through the hydrogen bond between cellulose and ILs, thereby achieving a reduction in dielectric loss in the PVDF/ILs blend.…”

Section: Introductionmentioning

confidence: 99%

Influence of Microcrystalline Cellulose on The Structure and Properties of PVDF/1-Allyl-3- methylimidazolium Chloride Composite Materials

Liu,

Wang,

Zhao

et al. 2023

Preprint

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In this study, the solution-casting method was utilized to prepare poly(allylidene fluoride)(PVDF)/1-allyl-3-methylimidazolium chloride ([AMIM]Cl)/microcrystalline cellulose (MCC) composite films at 100°C. Besides, investigations were conducted on the synergistic effect of [AMIM]Cl and MCC on the crystalline phase of PVDF and the dielectric property of the composites. The results show that the presence of [AMIM]Cl induced the formation of β-PVDF due to the ion-dipole interactions and increased the permittivity and dielectric loss. In the PVDF/[AMIM]Cl/MCC ternary composites, [AMIM]Cl significantly reduced the size of MCC and promoted its dispersion, which led to the further marked increase in permittivity and decrease in dielectric loss. With the addition of 7% [AMIM]Cl and 10% MCC, the permittivity rose to 135.15 while the loss decreased to only 0.71. Therefore, this work provides an efficient strategy to prepare PVDF-based composites with high permittivity and low dielectric loss, which holds sound promise for the development of high-performance materials in electronic devices and dielectric applications.

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Influence of microcrystalline cellulose on the structure and properties of PVDF/1-allyl-3-methylimidazolium chloride composite materials

Liu,

Wang,

Zhao

et al. 2024

Polymer

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Effect of temperature on the interaction of cellulose/1-allyl-3-methyl imidazolium chloride solution

Cited by 4 publications

References 53 publications

Effects of Glucose and Coagulant on the Structure and Properties of Regenerated Cellulose Fibers

Effects of Glucose and Coagulant on the Structure and Properties of Regenerated Cellulose Fibers

Influence of Microcrystalline Cellulose on The Structure and Properties of PVDF/1-Allyl-3- methylimidazolium Chloride Composite Materials

Influence of microcrystalline cellulose on the structure and properties of PVDF/1-allyl-3-methylimidazolium chloride composite materials

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