The important role of thermodynamic interaction parameter in the determination of theta temperature, dextran/water system

Hydrodynamic Properties of Gelatin - Studies from Intrinsic Viscosity Measurements

“…It is quite well known that the second virial coefficient can also be evaluated from osmometry and light scattering measurements which consequently exhibits temperature dependence, finally yielding the theta temperature for the system under study. However, the evaluation of second virial coefficient from Zimm plot is really a time consuming and difficult task although quite reliable (Guner and Kibarer 2001).…”

“…Domenek et al (2008), released measurement of the intrinsic viscosity of gelatin type B in water solution at 42°C, where given values were of 27 cm 3 /g and 70 cm 3 /g. Works where study the hydrodynamic properties of a biopolymers in aqueous solution at different temperatures are made by Guner (1999), and Guner & Kibarer (2001) for dextran; Chen & Tsaih (1998) and Kasaii (2008) for chitosan, Bohidar for gelatin (1998), and Monkos for serum proteins (1996, 1997, 1999, 2000, 2004 and 2005). Bohidar (1998), study the aggregation properties of Gelatin chains in neutral aqueous solutions, were reported in the temperature range of 35-60°C.…”

Neutral Polymeric Surfactants Derived from Dextran: A Study of Their Aqueous Solution Behavior

“…[16,17,19,21 -23] Extensive viscometric studies of dextran in various polar solvents have been performed by Güner and coworkers. [24][25][26][27] Some other thermodynamic Summary: Amphiphilic polysaccharides are obtained by hydrophobic modification of a neutral bacterial polysaccharide, dextran. By reacting the polysaccharide with aliphatic epoxides (epoxyoctane and epoxydodecane) in dimethyl sulfoxide, a series of amphiphilic polymers is obtained which covers a large range of structural parameters (length of the polysaccharide, number and nature of hydrocarbon moieties).…”

Dextran‐Based Polycations: Thermodynamic Interaction with Water as Compared With Unsubstituted Dextran, 1 – Volumetric Properties and Light Scattering

“…Specific volume of the pure polymers as a function of f, the fraction of charged monomers, at the indicated temperatures. Filled circles: measured for the solid samples; filled asterisk: literature value; [10] open circles: extrapolated from the solution data (cf. Figure 2 and Figure 3).…”