Abstract
2-Hydroxyethyl methacrylate (HEMA) (branch)–methyl acrylate (MA) (backbone) comb-type graft copolymers were synthesized by grafting an amino-semitelechelic oligo (HEMA) to a MA–glycidyl methacrylate (GMA) random copolymer. From electron microscope observation, it was found that these graft polymeric membranes had microphase separated structures. Pervaporation of a benzene–cyclohexane mixture through these membranes was carried out in order to study the effect of microphase separated structures on selective permeability. Benzene was found to preferentially permeate through the membranes. Moreover, the pervaporation rate of benzene increased with increasing MA mole fraction in the graft copolymers. It was found that the continuous phases of poly(MA) domains functioned as permeating pathways for benzene and that the selectivity of the graft polymeric membranes occurred in the process of dissolution of the solvent into the membranes. The microphase separated structure was found to effectively enhance the selectivity as a result of its suppressing the plasticizing effect of benzene.
Similar content being viewed by others
Article PDF
References
J. W. Carter and B. Jagannadhhaswamy, Br. Chem. Eng., 9, 523 (1964).
R. Y. M. Huang and V. J. C. Lin, J. Appl. Polym. Sci., 12, 2615 (1968).
D. Aptel, J. Cuny, J. Jozefowicz, G. Morel, and J. Neel, J. Appl. Polym. Sci., 16, 1061 (1972).
I. Cabasso, J. Jagur-Grodzinski, and D. Vofsy, J. Appl. Polym. Sci., 18, 2137 (1974).
J. G. Sikonia and F. P. McCandless, J. Membr. Sci., 4, 229 (1978).
S. Hara and K. Mori, “Kobunshi no Kozo to Bunrikino,” Kagaku Dozin, 1976.
S. Yoshimasu, H. Nomura, K. Komiya, T. Okano, and I. Shinohara, Nippon Kagaku Kaishi, 785 (1980).
S. Yoshimasu, H. Nomura, K. Komiya, J. Terada, T. Okano, and I. Shinohara, Nippon Kagaku Kaishi, 276 (1981).
G. L. Wilkes, J. Appl. Phys., 49, 5060 (1978).
T. Okano, M. Katayama, and I. Shinohara, J. Appl. Polym. Sci., 22, 369 (1978).
T. Hamaya and S. Yamada, Kobunshi Ronbunshu, 34, 545 (1977).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Terada, J., Hohjoh, T., Yoshimasu, S. et al. Separation of Benzene–Cyclohexane Azeotropic Mixture through Polymeric Membranes with Microphase Separated Structures. Polym J 14, 347–353 (1982). https://doi.org/10.1295/polymj.14.347
Issue Date:
DOI: https://doi.org/10.1295/polymj.14.347
Keywords
This article is cited by
-
Pervaporation for separating benzene/cyclohexane mixture by P(AA-MA) copolymer membranes
Chinese Journal of Polymer Science (2011)