Partial specific volume of thermotropic polybibenzoates with different spacers |
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| Authors: | M. J. González-Tejera J. M. Pereña A. Bello I. Hernandez-Fuentes |
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| Affiliation: | (1) Departamento de Química Física I, Facultad de Ciencias Químicas, Universidad Complutense, E-28040 Madrid, Spain;(2) Instituto de Ciencia y Tecnología de Polímeros, Juan de la Cierva 3, E-28006 Madrid, Spain |
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| Abstract: | Summary Partial specific volume (v2o) of polybibenzoates with all-methylene and oxyethylene spacers have been determined in chloroalifatic solvents. The polybibenzoate with a heptamethylene spacer exhibits a more expanded state than the ones with one, two and three oxyethylene units in the spacer. A solvent effect on v2o has been observed. Nevertheless, the values of v2o in tetrachloroethane are in accord with the calculated by group contributions from rubbery polymers. |
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