Effect of polymer molecular weight on the polymer/surfactant interaction

Article Abstract:

A thermodynamic analysis of the interaction between fourteen different molar mass poly(ethylene oxide)s (PEO) and sodium dodecyl sulfate (SDS) on the basis of measured surfactant-binding isotherms is mentioned. It is demonstrated that only one polymer molecule is involved in the complex formation independently of the polymer molecular weight.

Polymers, Molecular weights, Chemical thermodynamics

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Pulsating pH-responsive nanogels

Article Abstract:

A novel method is presented for the design of robust, sustained nanochemomechanical oscillators. The approach is based on the switching of chemoresponsive nanogel beads between their collapsed and swollen state by coupling them to an appropriately chosen nonlinear reaction.

Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Hungary, Ruthenium, Chemical reactions, Hydrogen-ion concentration, Chemical properties, pH

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