Interactions of aminoalkylcarbamoyl cellulose derivatives and sodium dodecyl sulfate. 2. Foam stabilization
Polymers and High Performance Materials
We have compared the interactions between polyquaternium 10 and sodium dodecyl sulfate with similar complexes of mono and diquaternary ammoniumalkylcarbamoyl cellulose derivatives by measuring the foaming efficiency and foam stability of their aqueous solutions. At approximately a 1:1 stoichiometric ratio of sodium dodecyl sulfate (SDS) to quaternary groups, an insoluble precipitate began to form. Maximum foamability and foam stabilization were observed in systems close to the 2 dimensional phase boundary between soluble polymer-surfactant complexes and insoluble complexes. Foaming studies indicated that for a given amount of sodium dodecyl sulfate, the most kinetically stable foam was obtained using a monoquaternary polymer. The addition of a second cationic charge on the grafted polymer substituents apparently destabilized the foam. (C) 1999 Elsevier Science B.V. All rights reserved.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Lochhead, R. Y.,
(1999). Interactions of aminoalkylcarbamoyl cellulose derivatives and sodium dodecyl sulfate. 2. Foam stabilization. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 147(41276), 67-78.
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