Characterization of industrial lignins for their utilization in future value added applications

Sahoo, Saswata; Seydibeyoğlu, M. Özgür; Mohanty, Amar K.; Misra, Manjusri

doi:10.1016/j.biombioe.2011.07.009

Cited by 223 publications

(158 citation statements)

References 27 publications

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“…A large number of studies on lignin have focused on finding a higher-value application for lignin than fuel. Lignin is a promising compound for use in polymers (Sahoo et al 2011a) because of its phenolic base structure, which could lead to improvement of the mechanical properties when incorporated in a plastic (Panesar et al 2013). Lignin has interesting grafting and cross-linking abilities that make it an interesting material for use in polyvinyl alcohol (PVOH) and other polymeric systems.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Cross-linked Alkaline Lignin/Poly (Vinyl Alcohol) Film with a Formaldehyde Cross-linker

Su¹,

Gui-zhen²

2014

BioResources

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On the basis of previous experiments, industrial alkaline lignin/poly (vinyl alcohol) (PVOH) cross-linked films, industrial alkaline lignin/poly (vinyl alcohol) blend films, and neat poly (vinyl alcohol) films were prepared by casting. The films were investigated by Fourier transform infra-red spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetry analysis (TGA), and dynamic mechanical analysis (DMA). The water contact angles for the three kinds of films were studied as well. The crosslinking reaction between alkaline lignin and PVOH was strong, which was attributed to the high hydrolysis degree of PVOH and the high reactivity of formaldehyde. Compared with the neat PVOH film, the crystallinity of the cross-linked film decreased slightly; the thermal stability of the crosslinked film was higher; DMA analysis showed that the Tg and the tanδ magnitude of the alkaline lignin/PVOH reaction film both decreased slightly. Lignin and the cross-linking reaction both improved the water resistance of films. Therefore, this research has provided a detailed analysis of the characterization of the films while exploring the potential of direct usage of industrial alkaline lignin in polymer materials.

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Section: Introductionmentioning

confidence: 99%

Characterization of Cross-linked Alkaline Lignin/Poly (Vinyl Alcohol) Film with a Formaldehyde Cross-linker

Su¹,

Gui-zhen²

2014

BioResources

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“…Cellulosic bioethanol refineries have quickly expanded in the last 10 years due to biofuel policies in a number of countries. It is estimated that 225 million tons of lignin will be produced by lignocellulosic ethanol biorefineries by 2030 (Sahoo et al 2011b). The majority of lignin produced today is used as bioenergy, with only a small portion used in the production of value-added materials (Doherty et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Characterization of Lignins Isolated from Industrial Residues and their Beneficial Uses

2016

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The physico-chemical properties of lignin isolated from lignocellulosic bioethanol residues and hardwood kraft black liquor were compared with two commercial lignins, kraft softwood lignin, and soda non-wood lignin. Lignin from the industrial residues was isolated through the acid precipitation method. The amount of lignin isolated was approximately 38% of the dry weight of lignocellulosic bioethanol residues and approximately 27% of the black liquor solids. The numbers of methoxyl groups and phenolic and aliphatic hydroxyls were determined to derive a molecular formula for each of the four lignins. The molecular weights of the lignins were measured by high performance size exclusion chromatography. Potential value-added applications of the lignins were summarized based on their molecular weights and physico-chemical characteristics.

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“…목질계 (Sahoo et al, 2011;Stewart, 2008 polymerized mainly lignin showing a rapid increase of molecular weight and structural changes depending on incubation days. At the initial incubation days, cleavage of ether bonds increased phenolic OH content, while the results were contrary in of the later part of the culture.…”

Section: 서 론mentioning

confidence: 99%

Biomodification of Ethanol Organolsolv Lignin by Abortiporus biennis and Its Structural Change by Addition of Reducing Agent

Hong¹,

Park²,

Kim³

et al. 2016

Journal of the Korean Wood Science and Technology

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Characterization of industrial lignins for their utilization in future value added applications

Cited by 223 publications

References 27 publications

Characterization of Cross-linked Alkaline Lignin/Poly (Vinyl Alcohol) Film with a Formaldehyde Cross-linker

Characterization of Cross-linked Alkaline Lignin/Poly (Vinyl Alcohol) Film with a Formaldehyde Cross-linker

Characterization of Lignins Isolated from Industrial Residues and their Beneficial Uses

Biomodification of Ethanol Organolsolv Lignin by Abortiporus biennis and Its Structural Change by Addition of Reducing Agent

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