Cellulose organic solvents. II. The structure of N-methylmorpholine N-oxide 2.5H2O

Maia, Elaine Rose; Pérez, S.

doi:10.1107/s056774088200421x

Cited by 37 publications

(15 citation statements)

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“…As a kind of renewable and in-exhaustible resources, cellulose, a naturally occurring polysaccharide, has been re-evaluated recently. In order to develop further new, functional and high-performance materials, blend films prepared from cellulose and new solvents have been intensively studied [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Gas permeability of a novel cellulose membrane

Yuan

2002

Journal of Membrane Science

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Section: Introductionmentioning

confidence: 99%

Gas permeability of a novel cellulose membrane

Yuan

2002

Journal of Membrane Science

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“…The water content of NMMO hydrate can greatly influence its dissolving ability and 13.3 wt.% water content of NMMO·H 2 O can provide it strong dissolving ability at relatively low temperature (about 80 • C) to avoid degradation of cellulose [31].…”

Section: Methodsmentioning

confidence: 99%

Influence of drying method on morphology and properties of asymmetric cellulose hollow fiber membrane

Xiao

Cao

Qin³

et al. 2005

Journal of Membrane Science

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“…The dissolution of cellulose in NMMO is a pure physical process [6] in which the natural characteristics of cellulose can be better preserved. NMMO is thus a good solvent for cellulose membrane preparation by a phase conversion method.…”

Section: Introductionmentioning

confidence: 99%

Influence of coagulation bath on morphology of cellulose membranes prepared by NMMO method

2008

Front. Chem. Eng. China

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To control the morphology of cellulose membranes used for separation, they were prepared by the NMMO method using water, methanol, ethanol and their binary solution as coagulation baths. Morphologies of the surface and cross section of dry membranes were observed. The pore structure parameters of wet membranes were determined. By comparison, the process and mechanism of pore formation in dry membranes were suggested, and the relativity of cellulose crystal size to average pore diameter in wet membranes and their influences were discussed. The results show that the morphology of dry membranes is clearly varied with coagulation baths, while the porosity of wet membranes is almost constant. Porous structures can appear in the compact region of dry membranes due to swelling from water. These pores have a virtual effect on the average pore diameter of wet membranes. By changing the composition of coagulation baths, the microstructure of cellulose membranes in a dry or wet environment can be adjusted separately.

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Cellulose organic solvents. II. The structure of N-methylmorpholine N-oxide 2.5H2O

Cited by 37 publications

References 0 publications

Gas permeability of a novel cellulose membrane

Gas permeability of a novel cellulose membrane

Influence of drying method on morphology and properties of asymmetric cellulose hollow fiber membrane

Influence of coagulation bath on morphology of cellulose membranes prepared by NMMO method

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