Achieving high thermal conductivity in rigid liquid crystal-based units without compromising their super-flexibility is challenging. A strategy tacking synergistic enhancement of hydrogen bonds and liquid crystal main chains to form a multidimensional cross-linking network structure is proposed. An intrinsically thermally conductive shape memory polymers with ultra-high strength, ultra-high toughness, low-temperature resistance and wear resistance were obtained. It can lift up to 10,000 times its own weight (10 kg), has a bending radius of even 0.99 mm and remains super-flexible at-190 degrees C, achieving an unprecedented damage tolerance for ther-mosetting resins and laying the foundation for its foldability. We regulate the spherical crystal size by the solvent-induced self-assembly method, achieving an intrinsic thermal conductivity of 1.2 W/m & sdot;K. We took inspiration from the bionic structure of earwig wings combined with a crease vanishing function to apply high-aspect-ratio deployment structures in aerospace, achieving compatibility between deformation and load bearing.

CHEMICAL ENGINEERING JOURNAL  Volume 478, 15 December 2023, 147428

Luo, Lan; Zhang, Fenghua; Wang, Linlin; Liu, Yanju; Leng, Jinsong

https://doi.org/10.1016/j.cej.2023.147428

Multidimensional cross-linked network strategies for Rapidlyy,  Reconfigurable, refoldable shape memory polymer.pdf