1. A. Calculate the intrinsic viscosity (in units of dL/g) of a linear polystyrene sample using the following data measu

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1 A Calculate The Intrinsic Viscosity In Units Of Dl G Of A Linear Polystyrene Sample Using The Following Data Measu 1 (83.84 KiB) Viewed 38 times

1. A. Calculate the intrinsic viscosity (in units of dL/g) of a linear polystyrene sample using the following data measured with a capillary viscometer. The solutions were prepared by dissolving a known mass of polystyrene (given in table below) in 100 mL of chloroform at 30°C. Use the Kraemer equation for the analysis. Use an Excel spreadsheet to implement your solution and include a graph. B. Use the Mark Houwink equation to calculate the molecular weight. Mark-Houwink constants: Polymer Polystyrene (linear) Polystyrene (linear) Polystyrene (linear) Low MW Polystyrene anionic Polystyrene (linear) weight (mg) Efflux time (sec) 92 127 Polystyrene (linear) Polystyrene (iso) Polystyrene (linear) Polystyrene (linear) Polystyrene (linear) 0 50 150 250 Solvent THE THF THF THF Toluene 230 393 30°C 20°C 30°C 30°C 30°C Cyclohexane 30°C TCB 140°C Toluene Toluene Chloroform Temperature 25°C 25°C 30°C a; K (dL/g) 0.706; 0.000160 0.700; 0.000160 0.428; 0.001700 0.712; 0.000128 0.722; 0.000112 0.750; 0.000088 0.725; 0.000110 0.760; 0.000720 0.500; 0.008600 0.653; 0.000232