A combination of laser light scattering (LLS), viscometry, and fluorescence spectroscopy was used to study the association of a series of fluorocarbon-modified poly(N-isopropylacrylamide) (PNIPAM) copolymers in aqueous solution. The interchain association increases as both the fluorocarbon content and polymer concentration increase, evidenced by the changes of the apparent molar mass, intrinsic...

The Huggins band of ozone is investigated by means of dynamics calculations using a new (diabatic) potential energy surface for the 3 (1)A'(1B2) state. The good overall agreement of the calculated spectrum of vibrational energies and intensities with the experimental spectrum, especially at low to intermediate excitation energies, is considered as evidence that the Huggins band is due to the tw...

See related article by Huggins and Hodges, Cancer Res 1941; 1:293–7. "Studies on Prostatic Cancer: I. The Effect of Castration, of Estrogen and of Androgen Injection on Serum Phosphatases in Metastatic Carcinoma of the Prostate," authored by Charles Huggins and Clarence V. Hodges (1) for the April 1941 issue of Cancer Research, may be the first translational research study of a molecularly targ...

Evaluation of a surface equation of state generally involves an evaluation of its ability to represent raw experimental data, or information derived from such data, after the parameters of the equation have been adjusted to optimize this representation, followed by an evaluation of the physical reasonableness of the optimizing parameters in terms of the physical model on which the equation of s...

The sorption of carbon dioxide in poly(lactic acid) (PLA) was studied by quartz crystal microbalance at high pressures. To address the effect of the D isomer present in the polymer on the gas sorption, measurements were performed in PLA with two different L:D contents, 80:20 and 98:2. New data for the solubility of carbon dioxide in PLA 80:20 and PLA 98:2 over a temperature range from 303.2 to ...

In liquid systems where it is possible to perform light scattering experiments at the melting points of polymer solutions without nucleation taking place because of undercooling, the thermodynamic parameters necessary to calculate the correction parameter g in the Flory-Huggins equation as modified by Koningsveld can be determined. In the system poly(2,6-dimethyl 1,4-phenylene oxide)-toluene cr...

Consider a Galton–Watson process with immigration. This paper studies the limits of the sequential estimator, proposed by [Sriram, T.N., Basawa, I.V., and Huggins, R.M., (1991). Sequential estimation for branching processes with immigration. Ann. Statist. 19, 2232–2243.] and the modified sequential estimator, proposed by [Shete, S., Sriram, T.N., 1998. Fixed precision estimator of the offspring...

2014 We consider three types of critical points associated with the segregation of long, flexible, polymer chains : 1) one polymer + poor solvent, 2) two molten polymer species without solvent, 3) two dilute polymer species in a good solvent. For all these cases the Flory Huggins theory (or its extensions) would lead to a classical (mean field) type of critical behaviour. We analyse the critica...

The Flory-Huggins interaction is measured for a model rod-coil block copolymer system, poly(alkoxyphenylenevinylene-b-isoprene), by fitting the interfacial segregation of block copolymer to a homopolymer interface and by using the random phase approximation (RPA) for block copolymers. The measured interfacial segregation of a block copolymer to the interface between homopolymers, fit with a sel...