Results 251 to 260 of about 79,415 (301)
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Thermal and Structural of Methyl Cellulose
Advanced Materials Research, 2014The present study aims to investigate the physicochemical properties of the methyl cellulose. The information of this investigate has been used to reference in preparing biodegradable film. It was observed that the Fourier Transform Infrared Spectroscopy (FTIR) spectroscopy show the hydrogen bond’s formation and the Energy Dispersive X-Ray Fluorescence
W. Siriprom +2 more
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Journal of Applied Polymer Science, 1996
Graft copolymers of acrylonitrile (ACN), methyl methacrylate (MMA), and their mixtures on carboxy methyl cellulose (d.S 0.4–0.5) were prepared by the use of ceric ion initiator in aqueous medium. The graft copolymers were characterized by IR spectroscopy.
F. E. Okieimen, D. E. Ogbeifun
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Graft copolymers of acrylonitrile (ACN), methyl methacrylate (MMA), and their mixtures on carboxy methyl cellulose (d.S 0.4–0.5) were prepared by the use of ceric ion initiator in aqueous medium. The graft copolymers were characterized by IR spectroscopy.
F. E. Okieimen, D. E. Ogbeifun
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METHYL CELLULOSE SOLUTION FOR OPHTHALMIC USE
Archives of Ophthalmology, 1951THE USE of methyl cellulose solutions in ophthalmology is growing daily.1Because there is a variation in the concentrations recommended for use, as reported in the literature, my associates and I have tried to determine the concentration of methyl cellulose which would be most satisfactory and the proper composition of solutions of this substance.
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Methylation analysis of cellulose sulphates
Carbohydrate Polymers, 1997Abstract Methylation analysis was applied to cellulose sulphates (CS). The degree of substitution (ds) ranged from 0.52 to 1.37. Problems arose under the basic conditions of the methylation step. Cellulose sulphates with a high degree of substitution at C-2 showed significant loss of sulphate; samples with predominantly C-6 substitution gave good ...
Michael Gohdes +2 more
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Cellulosic Graft Copolymer: Poly(methyl methacrylate) with Cellulose Side Chains
Biomacromolecules, 2009A cellulose macromonomer, N-(15-methacryloyloxypentadecanoyl)-tri-O-acetyl-beta-cellulosylamine (CTA-C15-MA (2); M(2)) with number averaged degree of polymerization (DP(n)) = 13), was copolymerized with methyl methacrylate (MMA; M(1)) to give cellulosic copolymer with CTA side chains, PMMA-g-(CTA-C15) (3-A).
Yukiko, Enomoto-Rogers +3 more
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Experimental hypertension elicited by injections of methyl cellulose
Experientia, 1961Des injections sous-cutanes d'une solution de methyl-cellulose provoquent dans la rate une vraie hypertension arterielle maligne. Les animaux utilises eurent frequemment des œdemes et des ascites et toujours des lesions arterielles dans le cœur, les reins et ailleurs.
C E, HALL, O, HALL
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Study of the nitration of methyl cellulose
Journal of Applied Polymer Science, 1967AbstractA two‐step procedure for the preparation of methyl cellulose nitrate is described. The heterogeneity of the methylation step is reflected in the nonuniformity of the products obtained by nitration with either 98% nitric acid or a solution of 98% nitric acid in methylene chloride.
Jack Bobinski, Yvon P. Carignan
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Properties of Aqueous Solutions of Mixtures of Methyl Cellulose and Hydroxypropyl Cellulose
Russian Journal of Applied Chemistry, 2003Rheological properties of dilute and moderately concentrated aqueous solutions of mixtures of methyl cellulose and hydroxypropyl cellulose and gelation in these solutions were studied. Using the solvent vapor sorption, the compatibility of the polymer pair was examined and the composition range in which the thermodynamic compatibility is realized was ...
L. I. Kutsenko +3 more
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Polymer Science U.S.S.R., 1988
Abstract The change in structure of methyl cellulose (MC) in different solvents (water and DMFA) is determined by rheological, thermomechanical and dielectric studies. Introduction of MC into segmented polyurethane results in distribution of the intermolecular interactions in the binary system, which has a significant effect on the viscoelastic ...
Yu.Yu. Kercha +4 more
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Abstract The change in structure of methyl cellulose (MC) in different solvents (water and DMFA) is determined by rheological, thermomechanical and dielectric studies. Introduction of MC into segmented polyurethane results in distribution of the intermolecular interactions in the binary system, which has a significant effect on the viscoelastic ...
Yu.Yu. Kercha +4 more
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USE OF METHYL CELLULOSE IN OPHTHALMOLOGY
Archives of Ophthalmology, 1945There has been need in ophthalmology for a nonirritating and chemically inert colloid which would dissolve in water to produce a viscous, colorless solution having a high degree of transparency and a refractive index similar to that of the cornea. Such a solution would be useful as a bland vehicle for ophthalmic medicaments, as a substitute for natural
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