שאלה | The molecular weight of two different samples of a polymer of the same repetitive monomers, but made by different polymerization methods were measured by light scattering and membrane osmometry and the ratios of the MW from the light scattering vs. membrane osmometry for sample 1 was 1.4 and for sample 2 sample was 2.1. What conclusions can be made about the method of polymerization of polymer samples 1 and 2?

The molecular weight of two different samples of a polymer of the same repetitive monomers, but made by different polymerization methods were measured by light scattering and membrane osmometry and the ratios of the MW from the light scattering vs. membrane osmometry for sample 1 was 1.4 and for sample 2 sample was 2.1. What conclusions can be made about the method of polymerization of polymer samples 1 and 2?

		Sample 1 was made by a polymerization method that gave a narrow range of molecular weight polymers and sample 2 a broader molecular weight range distribution.
		Both Sample 1 and 2 had different average molecular weights but the same molecular weight range distributions.
		Sample 1 was of low molecular weight and sample 2 of high molecular weight.
		Sample 1 has a broad range of molecular weights and sample 2 a narrow range of molecular weight distribution.

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