DISTRIBUTIONS OF ESTROGENS BETWEEN IMMISCIBLE SOLVENTS

A polymer support with controllable solubility in mutually immiscible solvents.

We report on novel soluble macromolecules displaying rather peculiar solution behaviour, which allows us to gain full control of their partition into three mutually immiscible liquid media: water, dichloromethane and perfluoro(methylcyclohexane); such polymers may be used as soluble supports for reagents or catalysts, yielding supported species whose solubility preference for one out of three l...

Roughening transition and formation of bicontinuous structures of immiscible solvents embedded in surfactant diblock copolymers

2014 The roughening transition of the interface in a model mixture of amphiphilic diblock copolymers, two immiscible solvents and a monomeric cosurfactant is examined. The equivalence of this model with the solid-on-solid Ising magnet implies the existence of a critical cosurfactant composition XRAB for the transformation of a lamellar microemulsion phase into a bicontinuous disordered structur...

Relationship between morphology and rheology of immiscible polymer blends

The enthalpy of interaction between collagen fibres and denaturing solvents.

It is well known that both urea and acid cause collagen fibres to swell and at high conentrations to denature (Rigby, 1961). The mechanisms by which these reactions occur are not well understood. Paz Andrade et al. (1975) have used microcalorimetry to study the reaction between urea and some globular proteins, and have interpreted the results in terms of the binding of urea to the peptide units...

The relationship between umbilical cord estrogens and perinatal characteristics.

BACKGROUND Prenatal estrogen exposure is thought to contribute to later life diseases such as breast cancer. However, few studies have directly measured prenatal estrogens and most have relied on proposed "markers" of estrogen exposure. We used a large population-based birth cohort to directly measure the relationship between prenatal estrogens and perinatal characteristics, including putative ...