Theta solvent — In a polymer solution, a theta solvent (or θ solvent) is a solvent in which polymer coils act like ideal chains, assuming exactly their random walk coil dimensions. Thermodynamically, the excess chemical potential of mixing between a polymer and… … Wikipedia
Polymer — Appearance of real linear polymer chains as recorded using an atomic force microscope on surface under liquid medium. Chain contour length for this polymer is 204 nm; thickness is 0.4 nm.[1] A polymer is a large molecule (macromolecule … Wikipedia
Coil-globule transition — In polymer physics, the Coil globule transition is the collapse of a macromolecule from an expanded coil state through an ideal coil state to a collapsed globule state, or vice versa. The coil globule transition is of importance in biology due to … Wikipedia
Mark-Houwink equation — The Mark Houwink equation gives a relation between intrinsic viscosity [eta] and molecular weight M: [Paul, Hiemenz C., and Lodge P. Timothy. Polymer Chemistry. Second ed. Boca Raton: CRC P, 2007. 336, 338 339.] : [eta] =KM^aFrom this equation… … Wikipedia
Mark–Houwink equation — The Mark–Houwink equation gives a relation between intrinsic viscosity [η] and molecular weight M:[1] [η] = KMa From this equation the molecular weight of a polymer can be determined from data on the intrinsic viscosity and vice versa. The values … Wikipedia
teta tirpiklis — statusas T sritis chemija apibrėžtis Tirpiklis, kuris su polimeru sudaro idealųjį tirpalą. atitikmenys: angl. theta solvent rus. тета растворитель … Chemijos terminų aiškinamasis žodynas
тета-растворитель — teta tirpiklis statusas T sritis chemija apibrėžtis Tirpiklis, kuris su polimeru sudaro idealųjį tirpalą. atitikmenys: angl. theta solvent rus. тета растворитель … Chemijos terminų aiškinamasis žodynas
Static light scattering — is a technique in physical chemistry that measures the intensity of the scattered light to obtain the average molecular weight Mw of a macromolecule like a polymer or a protein. Measurement of the scattering intensity at many angles allows… … Wikipedia
Circular dichroism — (CD) refers to the differential absorption of left and right circularly polarized light.[1][2] This phenomenon was discovered by Jean Baptiste Biot, Augustin Fresnel, and Aimé Cotton in the first half of the 19th century.[3] It is exhibited in… … Wikipedia
Photoconductive atomic force microscopy — (pc AFM) is a scientific technique.. Multi layer photovoltaic cells have gained popularity since mid 1980s.[1] At the time, research was primarily focused on single layer photovoltaic (PV) devices between two electrodes, in which PV properties… … Wikipedia