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Influence of the Chain Structure of Polymers on Their Flow Behavior

An efficient, specific optimization of the processing conditions and vulcanizate properties therefore requires a quantitative correlation between the technical properties and the molecular architecture of the polymer. Literatures have shown that dynamic mechanical analysis in the regime of viscous flow can be used for a quantitative characterization of the chain architecture. This article demonstrates how this is done in practice using measurements performed with a dynamic mechanical analyzer (DMA) and a rheometer.

 

 

 

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Keywords
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 Poly(ethylene-co-propylene) polymers (EPM),  vinyl norbornene (VNB), EPDM, molecular weight distribution (MWD), Mooney viscosity, long chain branching, van Gurp-Palmen plot


Influence of the Chain Structure of Polymers on Their Flow Behavior | Thermal Analysis Application No. UC 235 | Application published in METTLER TOLEDO Thermal Analysis UserCom 23