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Isostructural Softening of Vulcanized Nanocomposites
Guilhem P. Baeza, Florent Dalmas, Fabien Dutertre, Jean-Charles Majest\'e
https://arxiv.org/abs/2403.03133

Isostructural Softening of Vulcanized Nanocomposites
Following a previous work evidencing that short poly-propylene glycol (PPG) chains incorporated to crude SBR-silica nanocomposites act as filler-network softeners without changing their structure, we propose in the present letter to examine more operative cross-linked materials. We first evidence that the adsorption of PPG onto silica deactivates progressively the particle's catalytic effect on vulcanization, without perturbing however the cross-link density distribution that we investigate thr…