Study of solution properties of poly(α-methyl styrene) in various solvents by dilute-solution viscometry
Article first published online: 10 MAR 2003
Copyright © 1993 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 50, Issue 7, pages 1115–1121, 15 November 1993
How to Cite
Chee, K. K. and Ng, S. C. (1993), Study of solution properties of poly(α-methyl styrene) in various solvents by dilute-solution viscometry. J. Appl. Polym. Sci., 50: 1115–1121. doi: 10.1002/app.1993.070500701
- Issue published online: 10 MAR 2003
- Article first published online: 10 MAR 2003
- Manuscript Accepted: 28 MAR 1993
- Manuscript Received: 21 AUG 1992
The values of Mark–Houwink–Sakurada constants were determined for poly(α-methyl styrene) (PαMs) of high and low molecular weights in a variety of solvents by a new approach, which requires only polydisperse samples. The results are in accord with those reported in the literature. In addition, the present work reports the values of the Flory interaction parameter for PαMs in 13 solvents of distinct solvent power at various temperatures. Three refined methods pertaining to both polar and nonpolar solvents were applied to estimate the solubility parameter (δ2) of PαMs resulting in δ2 = 18.75 ± 0.15 (J/mL)1/2 at 30°C. Finally, the scatter data of the Huggins coefficient over a range of expansion factors varying from 0.7 to 2.6 seem to conform better to a newly proposed empirical equation than to the contemporary model after Imai. © 1993 John Wiley & Sons, Inc.