Publisher's Note: “Non-monotonic dependence of the conductivity of carbon nanotube-filled elastomers subjected to uniaxial compression/decompression” [J. Appl. Phys. 113, 103706 (2013)]

Semeriyanov, F. F.; Chervanyov, A. I.; Jurk, René; Subramaniam, Kalaivani; König, Simon; Roscher, Moritz; Das, Anindya Sundar; Stöckelhuber, Klaus Werner; Heinrich, Gert

doi:10.1063/1.4801835

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“…A relatively small fraction of solid fillers is experimentally known [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 ] to have significant effect on the phase separation and miscibility of polymer blends. Nano-fillers are often used to improve a variety of industrially important functional properties of polymer blends, such as electrical and thermal conductivity [ 12 ], piezoresistivity [ 13 ], electromagnetic interference shielding [ 14 ], and sensor ability [ 15 ] to name a few. Owing to their small translational entropy, the high-molecular-weight components of polymer blends are known [ 10 , 16 ] to be hardly miscible.…”

Section: Introductionmentioning

confidence: 99%

Spinodal Decomposition of Filled Polymer Blends: The Role of the Osmotic Effect of Fillers

Chervanyov

2023

Polymers

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The reported work addresses the effect of fillers on the thermodynamic stability and miscibility of compressible polymer blends. We calculate the spinodal transition temperature of a filled polymer blend as a function of the interaction energies between the blend species, as well as the blend composition, filler size, and filler volume fraction. The calculation method relies on the developed thermodynamic theory of filled compressible polymer blends. This theory makes it possible to obtain the excess pressure and chemical potential caused by the presence of fillers. As a main result of the reported work, we demonstrate that the presence of neutral (non-adsorbing) fillers can be used to enhance the stability of a polymer blend that shows low critical solution temperature (LCST) behavior. The obtained results highlight the importance of the osmotic effect of fillers on the miscibility of polymer blends. The demonstrated good agreement with the experiment proves that this effect alone can explain the observed filler-induced change in the LCST.

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