ABSTRACT:Intrinsic viscosity-molecular weight relationships were determined for poly(hexyl isocyanate) in toluene and dichloromethane using a number of narrow-distribution samples covering ·a wide molecular weight range. The data were analyzed according to the YamakawaFujii-Y oshizaki theory of viscosity of wormlike cylinders, yielding the following values for the persistence length q and molar mass ML per unit contour length: q=41-34nm and ML =730-760 nm-1 in toluene between 10 and 40°C and q=2lnm and ML=750nm-1 in dichloromethane at 20°C. These parameter values are favorably compared with those reported for other solvent conditions for the same polymer.KEY WORDS Poly(hexyl isocyanate) / Wormlike Chain / Persistence Length/ Yamakawa-Fujii-Yoshizaki Theory/ Chain Stiffness/ Stiff Chain/ Intrinsic Viscosity /
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