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8685762 
Journal Article 
Determination of the Extension of Linear Polymer Molecule in the Solution by the Light Scattering 
Miyake, Y 
1961 
1 
Physical Society of Japan. Journal
ISSN: 0031-9015 
16 
9 
1703-1708 
English 
With use of Peterlin and Mizutani's light scattering function P(θ), a simple method has been developed to determine the mean square end-to-end distance <r2>. Following Peterlin and Mizutani, <r2> is assumed to be proportional to Nγ, where N is the degree of polymerization and γ is a parameter. Obtained values of <r2> are (5.53)2×10-16N1.15, (42.51)2 ×10-15N0.70, and (6.39)2×10-16N1.11 for polystyrene in toluene, in methylethylketone and in cyclohexane solutions, respectively. These results suggest that the excluded volume of chain elements and the interaction between the polymer and the solvent are important factors to determine the extension of polymer molecules in both good and poor solvents. Brief discussions on the polydispersity of the system are also given. 1961, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.