Conformational behaviour of poly(2,6-dimethyl-1,4-phenylene oxide) in solution - I: Intrinsic viscosity as a function of temperature

Berg van den, J.W.A. and Ridder van de, G. and Smolders, C.A. (1981) Conformational behaviour of poly(2,6-dimethyl-1,4-phenylene oxide) in solution - I: Intrinsic viscosity as a function of temperature. European Polymer Journal, 17 (8). pp. 935-939. ISSN 0014-3057

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Abstract:	Intrinsic viscosities [Î·] of poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) solutions have been measured as a function of temperature between 60 and 25Â°C. The solvents were toluene and trichloroethene. In both solvents, the [Î·]-T curve exhibited a point of inflection in the range 45-35Â°. This phenomenon is explained as a conformational transition, which is possibly involved in the nucleation process of the solution crystallization of PPO. Assuming constancy of the coil expansion factor Î±Î· and the solvent draining over the whole temperature interval, a slight increase of characteristic parameter CÎ±, with decreasing temperature has been calculated.
Item Type:	Article
Copyright:	Elsevier
Research Group:	Membrane Science and Technology (MST)
Link to this item:	http://purl.utwente.nl/publications/67184
Official URL:	http://dx.doi.org/10.1016/0014-3057(81)90199-3
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