ISSN:
0022-3832
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
A discrepancy between the previously reported viscosity-weight-average molecular weight relationship obtained for fractionated polymethylmethacrylate in acetone and that given by Meyerhoff and Schulz is attributed to the great influence of small chemical inhomogeneities on the molecular dimensions in the poor solvent acetone. Light-scattering results for the root-mean-square end-to-end distance R have been recalculated, taking into account a correction pointed out by Oth. It is shown that the results are in excellent agreement with the relation R3 = M[η] 2.1 × 1021 proposed by Flory and Fox, rather than the M1/2 dependence predicted for R by Kuhn.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pol.1953.120100406
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