IMPROVEED COMPATIBILITY BETWEEN POLYSTYRENE and POLY (VINYLIDENE FLUORIDE) BY THE ADDITION OF UREA | ||||
| Al-Azhar Bulletin of Science | ||||
| Article 2, Volume 17, Issue 1-A, June 2006, Page 21-30 PDF (340.55 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/absb.2006.11637 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| OMAR MELAD* ; OMAR ABU-TIEM; EHAB SOBEH | ||||
| Department of Chemistry, Al-Azhar University, P.O.Box 1277, GAZA, Palestine. | ||||
| Abstract | ||||
| The viscosity behaviour of dilute solution of Polystyrene-Poly(vinylidene fluoride) in dimethylformamide (DMF) in presence of urea has been studied at 25°C. The results show that the polymer mixtures are incompatible in DMF solution in the absence of urea. The influence of urea addition on the degree of compatibility of the polymer mixture has been studied in terms of the compatibility parameters (,,, and ) respectively. | ||||
| Keywords | ||||
| Urea addition; Poly(vinylidene fluoride); Polymer blend compatibility; dilute solution viscometry method | ||||
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