Second and third virial coefficients for polyisobutylene in cyclohexane
Autor: | Takashi Norisuye, Yo Nakamura, Ken-ichi Katayama, Akio Teramoto, Kazutomo Akasaka |
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Rok vydání: | 1992 |
Předmět: | |
Zdroj: | Macromolecules. 25:1134-1138 |
ISSN: | 1520-5835 0024-9297 |
DOI: | 10.1021/ma00029a020 |
Popis: | The molecular weight dependence of the second and third virial coefficients, the z-average radius of gyration and the zero-shear intrinsic viscosity was studied using light scattering. For M w higher than 7x10 4 A 3 and z vary as M w 0.6 and M w 1.19 , respectively and the factor g defined by A 3 /A 2 M w increases with increasing M w . The interpenetration function Ψ anf g plotted against the cube of the radius expansion factor are almost superimposed on the respective relations for polystyrene in benzene. |
Databáze: | OpenAIRE |
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