Surface films of cellulose derivatives on aqueous solutions

1933 ◽  
Vol 29 (140) ◽  
pp. 90 ◽  
Author(s):  
N. K. Adam
Keyword(s):  
Aqueous Solutions ◽  
Cellulose Derivatives ◽  
Surface Films

Formation of gold nanoparticles in aqueous solutions of cellulose derivatives and a study of the properties of these nanoparticles

2013 ◽  
Vol 86 (8) ◽  
pp. 1268-1274 ◽  
Author(s):  
O. Ya. Uryupina ◽  
V. V. Vysotskii ◽  
A. I. Loskutov ◽  
A. V. Cherkasova ◽  
V. I. Roldugin
Keyword(s):  
Gold Nanoparticles ◽  
Aqueous Solutions ◽  
Cellulose Derivatives

Synthesis of allyl cellulose in NaOH/urea aqueous solutions and its thiol–ene click reactions

2015 ◽  
Vol 6 (18) ◽  
pp. 3543-3548 ◽  
Author(s):  
Haoze Hu ◽  
Jun You ◽  
Weiping Gan ◽  
Jinping Zhou ◽  
Lina Zhang
Keyword(s):  
Aqueous Solutions ◽  
Click Reaction ◽  
Allyl Chloride ◽  
Cellulose Derivatives ◽  
Click Reactions

Allyl cellulose can be synthesized from cellulose and allyl chloride in NaOH/urea aqueous solutions and is further used to synthesize a variety of new cellulose derivatives through the thiol–ene click reaction.

A study of the viscosity of cellulose derivatives in aqueous solutions

1987 ◽  
Vol 7 (1) ◽  
pp. 1-16 ◽  
Author(s):  
C. Castelain ◽  
J.L. Doublier ◽  
J. Lefebvre
Keyword(s):  
Aqueous Solutions ◽  
Cellulose Derivatives

scholarly journals The structure of surface films. Part XVIII. ─The effect of alkalinity in the underlying solution on films of fatty acids

1933 ◽  
Vol 142 (847) ◽  
pp. 401-415 ◽  
Keyword(s):  
Fatty Acids ◽  
Acid Solution ◽  
Aqueous Solutions ◽  
Complete Solution ◽  
Alkaline Solutions ◽  
Carboxyl Group ◽  
Surface Films ◽  
Electrolytic Dissociation ◽  
End Groups ◽  
Monomolecular Films

Historical . It has been known for some time that extensive changes occur in monomolecular films of fatty acids on aqueous solutions, as the alkalinity or acidity is varied. These changes are of at least tow kinds; changes in the packing of the molecules in the coherent types of film, and changes in the lateral adhesion between molecules have already been described. Thus Adam found changes in the packing of the molecules in the condensed films on changing from neutral to acid solution; and also a change from condensed to gaseous or vapour expanded films, on changing from natural to strongly alkaline solutions. The second of those effects was considered to be due to a decrease in the lateral adhesion between the molecules, caused by the development of similar electric charges on the end groups, through electrolytic dissociation of the carboxyl group on alkaline solutions. On alkaline solutions, it has previously been noted that the films contract spontaneously; Adam called this "solution," but did not examine it in detail; Lyons and Rideal believed it to be not a complete solution, but the formation of a bimolecular layer two molecules thick; Zocher and Stiebel, by ultramicroscopic examintion, concluded that this disappearance of the film was due to a partial collapse into thick, localized aggregates, not into a uniform bimolecular film.

scholarly journals The structure of surface films. Part XVII.—γ hydroxy-stearic acid and its lactone

1933 ◽  
Vol 140 (840) ◽  
pp. 223-226 ◽  
Keyword(s):  
Stearic Acid ◽  
Aqueous Solutions ◽  
Surface Pressure ◽  
Surface Films ◽  
Hydroxy Stearic Acid ◽  
Monomolecular Films ◽  
Made In

This paper describes observations, mostly made in 1924 and not hitherto published in detail,* on the surface pressure of γ hydroxy-stearic acid (I) and its lactone (II) spread as monomolecular films on aqueous solutions. CH3 3 CH3 3 (CH 2 ) 13 (CH 2 ) 13 CHOH CH CH 2 CH 2 CH 2 O COOH CH 2 – CO I II Most of the measurements were made with the modification of Langmuir’s apparatus described in Parts I and II of this series of papers,† in which jets of air prevent the film passing the ends of the float. A few confirmatory observations have been made since, with the apparatus of Adam and Jessop, in which thin metallic ribbons block these gaps. The acid and lactone were kindly given me by Dr. P. W. Clutterbuck, of Manchester University.

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