Unfractionated and fractioned samples of poly(methyl methacrylate) (PMMA) were chqrqcterized by static light scattering (SLS) and gel permeation chromatography GPC) techniques at room temperature (33oC) in acetone and acetonitrile. Our results showed that the samples did not show any angular dependency. From static light scattering (Turbidity) measurements molecular weight (Mw) and second virial coefficients (A2) were determined. The positive value of A2 in case of acetone show that acetone is good solvent for PMMA while the A2 Values for accetonitrile show that accetonitrile is a theta solvent. The light scattering results are in consistent to that of GPC results, (conduced at Aberdeen University UK).
A SAEED ,B MOHAMMAD ,K MAHMOOD ,
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