Electrostatic compatibilization of amorphous and semi-crystalline immiscible polymer blends

The rapid accumulation of plastic waste underscores the urgent need for effective recycling strategies, yet conventional approaches are hindered by the immiscibility of chemically dissimilar polymers, which phase-separate upon blending and yield poor material properties. This study demonstrates a versatile strategy for electrostatic compatibilization, utilizing acid–base proton transfer between minimally functionalized polymers. Waste-derived polystyrene (PS) was successfully modified with < 4 mol% acid groups, while amorphous polybutadiene (PBD) was functionalized with < 6 mol% diethylamino base groups and subsequently hydrogenated to yield semi-crystalline polyethylene (PE) with the same functionalization level as the PBD. In both cases, blending with functionalized PS produced optically transparent, mechanically robust films. Notably, increasing charge density from 1.0 to 3.5 mol% significantly reduced domain sizes, indicating enhanced compatibilization, while increasing PS mol..., , Data from a peer-reviewed article:

Title: Electrostatic Compatibilization of Amorphous and Semi-Crystalline Immiscible Polymer Blends
Journal: ACS Macro Letters
Authors: Haley K. Beech#, Kseniia M. Karnaukh#, Madeleine E. Miyamoto, KeRay Chen, Jerrick Edmund, Javier Read de Alaniz, Craig J. Hawker, and Rachel A. Segalman
\#co-first author

Corresponding authors: Javier Read de Alaniz ([[e-mail]](mailto:[e-mail])), Craig J. Hawker ([[e-mail]](mailto:[e-mail])), Rachel A. Segalman ([[e-mail]](mailto:[e-mail]))

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