Inside Cover: From Lignocellulosic Biomass to Furans via 5‐Acetoxymethylfurfural as an Alternative to 5‐Hydroxymethylfurfural (ChemSusChem 7/2015)

Kang, Eun‐Sil; Hong, Yeon-Woo; Chae, Da Won; Kim, Bora; Kim, Baekjin; Kim, Yong Jin; Cho, Jin Ku; Kim, Young Gyu

doi:10.1002/cssc.201500250

Cited by 2 publications

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“…Gum rosin rich of resin acid which 90% are isomeric with abietic acid that contains conjugated double bonds. Conjugated double bonds can increase population of free radicals that enhance polimerization in aromatic rings [5]. Conjugated double bonds in abietic acid can be detected by UV-Vis Spectroscopy in the wavelength of 241 nm [7].…”

Section: Resultsmentioning

confidence: 99%

“…Gum rosin is produced from pine trees. It contains conjugated double bonds that can increase free radical population to support pyrolysis process and also increase polimerization of aromatic rings [5]. Conjugated double bonds are chemically stable that can reduce softening point favorable for mesophase and polimerization of aromatics to form poliaromatic crystalline [1].…”

Section: Introductionmentioning

confidence: 99%

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Activated Carbon Production by Co-Pyrolysis of Vacuum Residue and Gum Rosin

Maulida

Supramono

2020

MSF

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Vacuum residue (VR) is potential to be used as a feedstock for mesophase pitch (MP) production because of its low cost and aromatic content. MP, which is a liquid-crystalline state of VR, may be used as precursor of activated carbon (AC). Gum rosin containing conjugated double bonds may be added to and can improve crystallinity and pore surface area in further processes of carbonisation and activation. In the present study, co-pyrolysis was carried out in a stirred tank reactor at 450°C with holding time for 120 minutes. The amount of gum rosin mixed with VR was varied 0, 5, 10 and 15% wt of VR. The precursor products had C/H mole ratio of about 2.43, 2.37, 2.28, and 2.01 by increasing gum rosin added. Subsequently, this precursor underwent carbonization at 700°C with holding time for 120 minutes under N2 flow and activation. KOH solution was used as activating agent to the precursor of activated carbon. Activated carbon gave higher surface area and lower C/H atom ratio with increasing gum rosin added during co-pyrolysis. With gum rosin addition, surface areas of ACs were 120.81, 194.56, 312.36, dan 462.19 m2/g, respectively, and crystallite sizes increased from 8 to 22 Å.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Activated Carbon Production by Co-Pyrolysis of Vacuum Residue and Gum Rosin

Maulida

Supramono

2020

MSF

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Biobased polyesters and other polymers from 2,5-furandicarboxylic acid: a tribute to furan excellency

et al. 2015

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Motivated by a general concern on sustainability and environmental issues, a sparkling search for renewable-based polymers has grown exponentially in recent years. This search definitely spotlighted polyesters derived from 2,5-furandicarboxylic acid, among other polymers, as some of the most promising, especially due to the resemblance of this renewable monomer to the well-known petroleum-based terephthalic acid, as well as for the possibility of preparing innovative materials. The huge number of recent papers and patents about this family of polymers explore aspects such diverse as synthesis with other renewable-based monomers, leading to the preparation of materials with enhanced thermo-mechanical, biodegradability and liquid crystalline properties, among other features. Additional aspects pursued in such studies are innovation in the synthetic approaches or its optimisation; and also the development of applications for everyday-life objects like for example packaging materials, especially bottles, textiles, coating, toners, among many other uses. Despite this intense activity little has been reviewed recently about this unique family of polyesters, or derived polymers, as the only reviews on the subject date-back from the last century. In this perspective, the present appraisal aims at contributing to fulfil this literature gap, covering recent aspects related with challenges of developing polyesters, polyamides, or other polymers from 2,5-furandicarboxylic acid and their precursors. Emphasis is placed on monomer synthesis, polymerisation reactions, catalysts and applications.A tribute to 2,5-furandicarboxylic acid excellency and the myriad of novel polyesters, but also polyamides, among other polycondensates, is comprehensively done.

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Inside Cover: From Lignocellulosic Biomass to Furans via 5‐Acetoxymethylfurfural as an Alternative to 5‐Hydroxymethylfurfural (ChemSusChem 7/2015)

Cited by 2 publications

References 0 publications

Activated Carbon Production by Co-Pyrolysis of Vacuum Residue and Gum Rosin

Activated Carbon Production by Co-Pyrolysis of Vacuum Residue and Gum Rosin

Biobased polyesters and other polymers from 2,5-furandicarboxylic acid: a tribute to furan excellency

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