Zobrazeno 1 - 10
of 29
pro vyhledávání: '"David J. Stanonis"'
Autor:
David J. Stanonis, Walter D. King
Publikováno v:
Textile Research Journal. 46:246-249
A practically linear relationship has been found to exist between the polyester content of a cotton/PET polyester fabric blend and the ml of n-heptane, called the B value, that must be added to 100 ml of carbon tetrachloride in order to prepare a sol
Autor:
Stanley P. Rowland, David J. Stanonis
Publikováno v:
Journal of Chromatography A. 190:448-451
Autor:
David J. Stanonis, Walter D. King
Publikováno v:
Journal of Applied Polymer Science. 18:547-554
Three cyclic polymers of formaldehyde, namely, trioxane, 1,3,5,7-tetraoxocane, and 1,3,5,7,9-pentaoxocane, were reacted with acetic anhydride containing a catalytic amount of sulfuric acid. The progress of each reaction was followed by GLC. The cycli
Publikováno v:
Journal of Applied Polymer Science. 25:2229-2234
Weight of cotton immersed in an aqueous solution (various concentrations of NaOH) was explored as a basis for assessing penetration and sorption of the solute. The overall effects of swelling are indicated. Penetration and sorption phenomena can be i
Publikováno v:
Journal of Applied Polymer Science. 11:1683-1692
In the reaction of cotton cellulose fiber with propionyl chloride in pyridine–DMF medium, the degree of substitution based on weight gain was much higher than that based on saponification. Gas–liquid chromatograms of the pyrolysis products of the
Publikováno v:
Journal of Applied Polymer Science. 5:163-170
The cellulose of cotton yarns was reacted with acrylonitrile under conditions preventing their longitudinal contraction. Changes taking place in the fine structure of the fiber were studied by means of optical microscopy, density measurements, x-ray
Publikováno v:
Textile Research Journal. 28:659-668
Ternary systems, such as alcohol. water, and sodium hydroxide, have been used in the pretreatment bath or have been added in fixed quantities to cotton prior to etherifi cation with benzyl chloride. Evidence has been obtained which supports an hypoth
Publikováno v:
Textile Research Journal. 43:397-404
Microscopical features of partially etherified cotton fibers are described through examination of benzyl, benzhydryl, and trityl celluloses. Reaction appeared to be uniform throughout the fibers. Refractive indices generally increased with increase i
Publikováno v:
Journal of Applied Polymer Science. 11:817-828
The present paper describes the results of a preliminary study of certain physical and thermal properties of benzhydrylated cotton yarns. The 200-yd. lengths of 7/2 yarn consisting of purified mercerized cellulose were reacted in a special reactor to
Publikováno v:
Journal of Polymer Science Part A-1: Polymer Chemistry. 4:434-437