Polymer branching and first normal stress differences in small‐amplitude oscillatory shear flow

Abstract

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Van Gurp–Palmen relations for long-chain branching from general rigid bead-rod theory

“…By low frequency, we mean low Deborah number, that is λω < 1. In this paper, from general rigid bead-rod theory [6,5,11,12,13,14], we arrive at an interesting explanation for these descents. We explore the effects of branching along a straight chain in small-amplitude oscillatory shear flow, and thus, on the complex viscosity, and thus, on the van Gurp-Palmen plots.…”

Complex viscosity of star-branched macromolecules from analytical general rigid bead-rod theory

“…with parts in-phase and out-of-phase with the shear rate [12]. We follow the Gemant convention [13,14,15]:…”

A perspective on The Canadian Journal of Chemical Engineering commemorating its 100th volume: 1929–2021

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