intrinsic viscosity


Also found in: Acronyms, Wikipedia.

intrinsic viscosity

[in′trin·sik vi′skäs·əd·ē]
(physical chemistry)
The ratio of a solution's specific viscosity to the concentration of the solute, extrapolated to zero concentration. Also known as limiting viscosity number.
References in periodicals archive ?
And in order to discuss the effects of thermal degradation on the intrinsic viscosity of PP, PP melt was heated at different temperatures for 30 min without introducing ultrasonic irradiation.
Polymer processors use intrinsic viscosity data to set a tight specification that will ensure product quality.
As both Table 1 and Figure 3 indicate, the intrinsic viscosity values of guar gum are not very different and do not seem to follow any clear trend with increasing of ionic strength.
From the intrinsic viscosity, the molecular weight was determined employing the Mark-Houwink equation:
Generally speaking, the mechanical properties of polymeric fibers mainly depend on the intrinsic viscosity, intermolecular interaction, rigidity of polymer backbone, molecular packing and structure defects [29-31], The intrinsic viscosities of the PAA solutions decrease with the increase of ODA or BIA contents compared with BPOB-3, implying that the ODA and BIA moieties improve the flexibility of the polymer chains, as reported that the flexibility of polymer chains can reduce the viscosity [32], The decrease of the intrinsic viscosities lead to the decrease of tensile strength, manifesting that the intrinsic viscosities of co-PAAs do not affect the improvement of mechanical properties of the co-PI fibers.
A key viscosity parameter for polymer characterization is the limiting viscosity number or intrinsic viscosity, [[eta]].
Intrinsic viscosity was obtained by extrapolation of plot of specific viscosity/concentration vs.
Peach(TM) is a softwood kraft cellulose pulp with uniformly stable low intrinsic viscosity.
Intrinsic viscosity is a measure of the average length of the molecular chains of polymers making up pulp fibers.
The 1 percent intrinsic viscosity had the best correlation to molecular weight.
To study the effect of gamma radiation on properties of PET, molecular weights of raw & irradiated PET waste samples were determined by intrinsic viscosity method using Ubbelohde type of capillary viscometer.