Results 71 to 80 of about 4,063 (203)

Organosolv fractionation and pulp upgrading of wheat straw for production of continuous cellulosic fibers by wet‐spinning

open access: yesBiofuels, Bioproducts and Biorefining, Volume 20, Issue 2, Page 931-944, March/April 2026.
Abstract Textile production is an important industrial sector but also one of the most polluting industries and highly dependent on fossil resources and cotton for the production of fibers. The use of cellulosic fibers from local agricultural residues can offer a sustainable alternative for the current textile industry. In this work, an environmentally
Ilona van Zandvoort   +7 more
wiley   +1 more source

Recycling of PAN Waste into Nonwoven Materials Using Electrospinning Method

open access: yesFibers
For the first time, electrospinning has been used to recycle polyacrylonitrile terpolymer (PAN) waste following the solid-phase N-methylmorpholine-N-oxide (NMMO) process from PAN solutions in DMSO into nonwoven materials.
Yaroslav V. Golubev   +6 more
doaj   +1 more source

Structural changes and alkaline solubility of wood cellulose fibers after enzymatic peeling treatment

open access: yes, 2010
The authors are grateful to the publisher, Elsevier, for letting the manuscript being archived in this Open Access repository. The final publication is available at http://www.sciencedirect.com/International audienceTwo dissolving sulphite wood pulps ...
Jardeby, Kristina   +2 more
core   +3 more sources

Indanone Building Blocks From Lignin Related C9‐Platform Molecules

open access: yesChemistrySelect, Volume 11, Issue 10, 11 March 2026.
ABSTRACT Lignin‐based aryl 3‐hydroxypropanones were converted into indanones via a domino dehydration/Nazarov cyclization in the presence of a superacid. The cyclization was studied in detail, and the resulting indanones were engaged in two postfunctionalizations: a reduction/elimination domino sequence and a ring expansion. Lastly, the method has been
Josue Arturo Ledezma Fierro   +5 more
wiley   +1 more source

Total Synthesis of (+)‐Melonine and (+)‐N4‐Oxy Melonine Enabled by an Intramolecular Alkene Diamination Reaction

open access: yesAngewandte Chemie, Volume 138, Issue 7, 9 February 2026.
A complexity‐generating intramolecular alkene diamination constitutes the pivotal step in the enantioselective synthesis of the title natural products featuring a strained, cage‐like pentacyclic architecture. Abstract Among more than four thousand monoterpene indole alkaloids (MIAs) isolated to date, only a few feature a 2,2,3‐trisubstituted indoline ...
Vincent Goëlo, Qian Wang, Jieping Zhu
wiley   +1 more source

Synthesis of several bisabolane sesquiterpenoids from xanthorrhizol isolated from C. Xanthorrhiza [PDF]

open access: yes, 2005
Xanthorrhizol was isolated from the essential oil of fresh rhizomes of C. xanthorrhiza in 20.2% yield by fractionation using vacuum liquid chromatography. Several bisabolane-type sesquiterpenoids have been synthesised from this xanthorrhizol.
Ngai, Mun Hong
core  

Ethylene glycol assisted intermolecular Pauson-Khand reaction [PDF]

open access: yes, 2017
The use of ethylene glycol as additive in the N-oxide-promoted intermolecular Pauson-Khand reaction (PKR) has been studied. The addition of 15% ethylene glycol to the reaction mixture consistently increased (from 20% up to 2-4-fold) the reaction ...
Cabré, Albert   +2 more
core   +1 more source

Polysaccharide Blend Fibres Formed from NaOH, N-Methylmorpholine-N-oxide and 1-Ethyl-3-methylimidazolium acetate

open access: yes, 2010
Article disponible sur le site de l'éditeur : http://www.fibtex.lodz.pl/article330.htmlInternational audienceThe aim of the study was to find new structured biopolymer blends bearing adjustable properties able to produce innovative materials.
Ciechanska, Danuta   +8 more
core   +1 more source

Application of Raman Spectroscopy for Differentiation Among Cotton and Viscose Fibers Dyed with Several Dye Classes [PDF]

open access: yes, 2014
The difference between natural and regenerated cellulose fibers caused by variations in the degree of polymerization and supramolecular structure, influences dyes adsorption properties.
Machnowski, Waldemar   +1 more
core   +1 more source

Tailoring the Properties of Functional Materials With N‐Oxides

open access: yesAdvanced Functional Materials, Volume 36, Issue 17, 26 February 2026.
The properties of materials bearing N‐oxide groups are often dominated by the polar N+─O− bond. It provides hydrophilicity, selective ion‐binding, electric conductivity, or antifouling properties. Many of the underlying mechanisms have only recently been discovered, and the interest in N‐oxide materials is rapidly growing.
Timo Friedrich   +5 more
wiley   +1 more source

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