HUGGINS CONSTANT OF POLYSTYRENE IN BINARY SOLVENTS | ||||
| International Conference on Aerospace Sciences and Aviation Technology | ||||
| Article 68, Volume 1, A.S.A.T. CONFERENCE 14-16 May 1985 r CAIRO, May 1985, Page 807-816 PDF (1.18 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/asat.1985.26559 | ||||
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| Authors | ||||
| A. A. A. ABDEL AZIM1; M. B. HUGLIN2 | ||||
| 1Department of Chemistry, Military Technical College, Kobry El Koba, Cairo, Egypt. | ||||
| 2Department of Chemistry and Applied Chemistry, University of Salford, Salford, M5 4WT U.K. | ||||
| Abstract | ||||
| Continuing of our programe dedicated the behaviour of polystyrene (PS, subscript 2) in mixed solvents(1-5), measurements of the Huggins constant, k, were made at 34.5°C on solutions of PS dissolved in different conditions of solvent and molecular weight of polymer,0-condi Lions were included so that the expansion factor oc could be determined in each case. Viscosity slope constants (K ) calculated according to an expression of Sakai werec 'plotted as a function of Oc3and were compared with the corresponding curves in terms of experimental values of K. An expression (due to Imai) was examined in order to establish a unique value of the slope constant Kunder 0 - condition by an extrapolation procedure. A constant value of K was not found4for PS. 1/2 -1 We tested the equation relating K CPC, to SM oc which we have proposed (1). A unique line under all conditions with reasonable linearity was obtained. | ||||
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