Evaluation of Unperturbed Dimension (Ro, Radius of Gyratlon (So), Excluded Volume Factor (Z) and Statistical Parameter (B) of Dextran in Different Solvents

A. P. Mahapatraa¹, C. R. Jenab¹, R. N. Samalb², R. K. Samalc³ and G. S. Royd⁴

¹Department of Physics, R. N. R. B. M, Kuntuni, Cuttack - 754 029 India.

²Post Graduate Department of Physics, Ravenshaw College, Cuttack -3 India.

³Post Graduate Department Of Chemistry, Ravenshaw College, Cuttack - 3 India.

⁴Pathani Samanta Planstorium, AcharyaVihar, Bhubaneswar India.

ABSTRACT:

The unperturbed dimension i,e. r.m.s. end-to-end distance (ro) radius of gyration (so), excluded volume factor (Z) and statistical parameter (b) have been evaluated in binary mixture of dextren of three different molecular weights in six different solvents i.e distilled water,1(N) NaOH, 1(N) KOH, 6(M) Urea, 2(M) Glycine end 50% glucose at temperatures ranging from 25oC to 50oC. The study revests that the r.m.s. end to end distance (ro) is the least in case of water and the maximum for glucose and ro, increases with increase in moleculer weight. The radius of gyration also shows the same trend as that shown by (ro). With increase in moleculer weight the excluded volume factor (Z) increases but 'Z' shows no definite trend with the variation in temperatures.The statistical parameter 'b' is the least in case of water and maximum for glucose. With the increase in temperature, statistical parameter decreases for five polar solvents but exibit some deviation in case of the solvent glucose.

KEYWORDS:

moleculer; exibit; parameter glucose

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Copy the following to cite this article: Mahapatraa A. P, Jenab C. R, Samalb R. N, Samalc R. K, Royd G. S, Evaluation of Unperturbed Dimension (Ro, Radius of Gyratlon (So), Excluded Volume Factor (Z) and Statistical Parameter (B) of Dextran in Different Solvents. Orient J Chem 2000;16(2).

Copy the following to cite this URL: Mahapatraa A. P, Jenab C. R, Samalb R. N, Samalc R. K, Royd G. S, Evaluation of Unperturbed Dimension (Ro, Radius of Gyratlon (So), Excluded Volume Factor (Z) and Statistical Parameter (B) of Dextran in Different Solvents. Orient J Chem 2000;16(2). Available from: http://www.orientjchem.org/?p=36313