Liu, Renjie; Wang, Yixin; Yan, Qiang published the artcile< CO2-Strengthened Double-Cross-Linked Polymer Gels from Frustrated Lewis Pair Networks>, Quality Control of 576-83-0, the main research area is CO2 strengthened polymer frustrated Lewis pair network; carbon dioxide utilization; double cross-linked networks; frustrated Lewis pairs; polymer gels; stimuli responsive materials.
Conventional thermosets consisting of polymer networks with robust and irreversible chem. linkages are incapable of reshaping or reprocessing once formed. In contrast, reversible non-covalent crosslinks can impart structurally flexible and reconfigurable feature to the networks, but at the expense of certain mech. strength. The integration of fixed covalent bonds and noncovalent bonds into these materials can usually attain enhanced mech. properties and meanwhile provide dynamic and adaptable functions, such as responsive and healing ability to external stimuli. Here a double-crosslinked frustrated Lewis pair network (FLPN) is developed through a specific three-component reaction among triarylborane, triarylphosphine, and CO2, which is composed of permanent chem. crosslinks and dynamic CO2 gas-bridged connections. The amount of CO2 added can regulate the d. of supramol. node in such FLPN, so as to control the strength and toughness of the gel material. Moreover, the broken gel can be rapidly healed by CO2 stimulus through the reconstruction of dynamic covalent network. This study will inspire a new way to create gas-based smart materials by incorporating frustrated Lewis pair chem. into traditional gel system.
Macromolecular Rapid Communications published new progress about Fracture toughness. 576-83-0 belongs to class bromides-buliding-blocks, and the molecular formula is C9H11Br, Quality Control of 576-83-0.
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary