Results 161 to 170 of about 4,063 (203)

A self-stiffness finishing for cotton fabric with N-methylmorpholine-N-oxide

Cellulose, 2015
In this study, the surface layer of cotton fabric was swelled with N-methylmorpholine-N-oxide with 18 % water content, washed and dried to improve its stiffness property. Finally, the finished fabric had no auxiliaries and self-stiffened. The results showed that the bending rigidity increased from 0.75 × 105 to 1.57 × 105 mN cm, the acute elastic ...
Fang Xu, Yulian Yang, Guangxian Zhang, Fengxiu Zhang, Yuansong Zhang   +4 more
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Homogeneous alkalization of cellulose in N-methylmorpholine-N-oxide/water solution

Cellulose, 2017
Alkali cellulose is an important intermediate in the production of cellulose derivatives. N-methylmorpholine-N-oxide (NMMO)/H2O was used as a homogeneous reaction medium for the cellulose alkalization process to intensify the alkalization degree and improve the substitution uniformity.
Yong Zhang, Shengwei Tang, Tao Zhang
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Mechanism of the interaction of dimethyl sulfoxide with N-methylmorpholine-N-oxide Monohydrate

Russian Journal of Physical Chemistry, 2006
The interaction of dimethyl sulfoxide with N-methylmorpholine-N-oxide (NMMO) monohydrate was studied by the NMR relaxation method. The mobility of DMSO molecules in the presence of NMMO monohydrate decreases due to the formation of a hydrogen bond between the water molecule of the monohydrate and a DMSO molecule.
E. S. Sashina, N. P. Novoselov
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Aqueous N-methylmorpholine N-oxide as a new medium for alkylation of pyrazoles

Chemistry of Heterocyclic Compounds, 2018
It is shown that alkylation of pyrazoles with (E)/(Z)-1,3-dichlorobut-2-enes can be carried out in an alkaline aqueous medium in the presence of N-methylmorpholine N-oxide. In some cases, this technique may substitute phase-transfer catalysis. Conformational analysis of the reaction products showed that a mixture of (E)/(Z) isomers is formed in a ratio
Ani H. Hasratyan, Ashkharuhi G. Alexanyan, Hasmik N. Khachatryan, Geghetsik B. Zakaryan, Sargis S. Hayotsyan, Gevorg G. Danagulyan, Hovhannes S. Attaryan   +6 more
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Oxidation of Activated Halides to Aldehydes and Ketones by N-Methylmorpholine-N-oxide

Synthetic Communications, 1992
Abstract N-methylmorpholine-N-oxide (NMO) in acetonitrile solution will oxidise activated primary halides to aldehydes and secondary halides to ketones in good yields at room temperature.
William P. Griffith, Jenny M. Jolliffe, Steven V. Ley, Karsten F. Springhorn, Peter D. Tiffin   +4 more
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Spectral features of the N-methylmorpholine-N-oxide-water-cellulose system

Polymer Science U.S.S.R., 1986
Abstract The spectral featuresof N-methylmorpholine-N-oxide (MMO) — a solvent for cellulose — have been studied. Temperature studies show that the IR-spectroscopic features of the phase state of the hydrated and anyydride forms of MMO disappear in the melt state.
T.A. Belousova, M.V. Shablygin, Yu.Ya. Belousov, L.K. Golova, S.P. Papkov   +4 more
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Solutions of mixtures of cellulose and synthetic polymers in N-methylmorpholine-N-oxide

Polymer Science Series A, 2009
Phase state and morphological features of solutions of cellulose blends with rigid-chain thermotropic LC copolyesters and isotropic poly(m-phenyleneisophthalamide) in the highly polar donor solvent N-methylmorpholine-N-oxide are studied by DSC and polarization microscopy.
L. K. Golova, I. S. Makarov, E. P. Plotnikova, G. Sh. Shambilova, A. K. Tereshin, V. G. Kulichikhin   +5 more
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Relaxation phenomena in water - n-methylmorpholin n-oxide binary mixtures

Journal of Molecular Liquids, 1988
Abstract Binary mixtures composed of water and N-methylmorpholin N-oxide (NMMNO) were studied in the concentration range 0.19 m to 26.5 m with shear and longitudinal waves. The dependence on temperature and molality of 1)the ultrasonic spectrum, 2)the real part of the complex mechanical impedance and 3)the ultrasonic velocity indicates equilibrium ...
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Biogas Production from N-Methylmorpholine-N-oxide (NMMO) Pretreated Forest Residues

Applied Biochemistry and Biotechnology, 2014
Lignocellulosic biomass represents a great potential for biogas production. However, a suitable pretreatment is needed to improve their digestibility. This study investigates the effects of an organic solvent, N-Methylmorpholine-N-oxide (NMMO) at temperatures of 120 and 90 °C, NMMO concentrations of 75 and 85% and treatment times of 3 and 15 h on the ...
Solmaz, Aslanzadeh, Andreas, Berg, Mohammad J, Taherzadeh, Ilona, Sárvári Horváth   +3 more
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Vapor pressure over the system cellulose-N-methylmorpholine-N-oxide-water

Fibre Chemistry, 1987
The vapor pressure over solid cellulose-N-methylmorpholine-N-oxide-water systems and over liquid solutions is higher than that over the MMO·H2O solvent.
M. M. Iovleva, A. N. Sokira
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