Polymer conformation and viscometric behaviour:1. conformational transition in poly (benzyl methacrylate) in dilute solutions
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Date
1983
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Abstract
The viscometric and refractometric behaviour of poly (benzyl methacrylate) (PBM) in isobutyl methyl ketone (IMK) as a function of the temperature was studied. The viscometric relations in IMK and toluene by membrane osmometry and GPC at 25ºC were established. The viscometric results show discontinuities in the intrinsic viscosity [?] in IMK and sharp changes in the conformational and thermodynamic parameters K? and B. The variation on the unperturbed dimensions of the polymer chain was attributed to a conformational transition. The influence of the side groups was analyzed. The conformational behaviour of this polymer was compared with the saturated corresponding poly (cyclohexyl methyl methacrylate).
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Keywords
Methacrylate, Benzyl, Methyl Methacrylate, Isobutyl, Intrinsic Viscosity