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JSIR Vol.65 [2006] >
JSIR Vol.65(11) [November 2006] >
| Title: | Ultrasonic velocity and acoustical parameters of poly (4, 4’-cyclo-hexylidene diphenyloxy-4, 4’-diphenylenesulfone) solutions at different temperatures |
| Authors: | Amrutia, R R
Mehta, N M
Karia, F D
Parsania, P H |
| Keywords: | Density
Molecular interactions
Thermodynamic parameters
Ultrasonic velocity
Viscosity |
| Issue Date: | Nov-2006 |
| Publisher: | CSIR |
| IPC Code: | G01N30/52 |
| Abstract: | Density, viscosity and ultrasonic velocity of pure solvents and PES-C [poly (4,4’–cyclohexylidene diphenyloxy-4,4’-diphenylene sulfone)] solutions and various thermodynamic parameters have been investigated at three different temperatures (30, 35 and 40°C) and correlated with concentration. A fairly good to excellent correlation between a given parameter and concentration has been observed in various solvent systems (chloroform, 1,2-dichloroethane, tetrahydrofuran and 1,4-dioxane) at all the three temperatures. Linear or nonlinear increase or decrease of thermodynamic parameters with concentration and temperature supported existence of strong molecular interactions in solutions. PES-C has structure-forming tendency in solvent systems studied as supported by positive values of solvation number. Structural modification is observed especially in 1,2-dichloroethane system above 2% concentration. |
| Page(s): | 905-911 |
| ISSN: | 0975-1084 (Online); 0022-4456 (Print) |
| Source: | JSIR Vol.65(11) [November 2006]
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