275 results about "Intrinsic viscosity" patented technology

Intrinsic viscosity [η] is a measure of a solute's contribution to the viscosity η of a solution. It should not be confused with inherent viscosity, which is the ratio of the natural logarithm of the relative viscosity to the mass concentration of the polymer. Intrinsic viscosity is defined as [η]=limϕ→₀(η-η₀)/η₀ϕ where η₀ is the viscosity in the absence of the solute, η is (dynamic or kinematic) viscosity of the solution and ϕ is the volume fraction of the solute in the solution.