Showing papers by "Gérard Riess published in 1984"

Dimethylsiloxane‐ethylene oxide block copolymers, 1. Microphase separation of low segment mass copolymers and their compatibility with water and oil

Abstract: Ternary phase diagrams of linear tri-block and multi-block copolymers consisting of poly(dimethylsiloxane) with a constant segment mass of Mn = 103 and varying poly(oxyethylene) segment masses in the range 100 ≤ Mn ≤ 2000 with water and oil (cyclohexane) are reported. Also binary mixtures of the same copolymers with water and oil are investigated by differential scanning calorimetry (DSC). Microphase separation of the copolymers and different states of water are detected as a function of composition and structure of the copolymers as well as oil and water content, respectively. The results are discussed in terms of a model having an interphasial zone where intermixing of the dissimilar segments occurs.