Organization of A2-Type Active Composite Nanorods.

Nanorods as building blocks are promising to construct functional superstructures. A paramagnetic FeO-based composite nanorod is large-scale synthesized from the poly(2-vinylpyridine) (P2VP) side chain grafted polymer bottlebrush by electrostatics-mediated intramolecular crosslinking via metallic coordination. Ultrasonication-assisted fracturing of the composite nanorod derives the corresponding A2-type composite nanorods whose two ends are active with the metallic coordinated P2VP exposed.

Supramolecular nanofibers protrusion budding interfacial membrane.

We have proposed an approach to achieve nanofibers or composite nanofibers with functional nanoparticles the protrusion of the budding interfacial membrane in an oil-water emulsion droplet stabilized with copolymers. The nanofibers were formed by the wrapping of the monolayer of the copolymers. The length is tunable with the copolymer concentration and water/oil ratio of the emulsion.

Scalable Synthesis of Photoluminescent Single-Chain Nanoparticles by Electrostatic-Mediated Intramolecular Crosslinking.

We report the large-scale synthesis of photoluminescent single-chain nanoparticles (SCNPs) by electrostatic-mediated intramolecular crosslinking in a concentrated solution of 40 mg mL by continuous addition of the free radical initiator. Poly(vinyl benzyl chloride) was charged by quaternization with vinyl-imidazolium for the intramolecular crosslinking by using 2,2-dimethoxy-2-phenylacetophenone (DMAP) as the radical initiator. Under the electrostatic repulsion thus interchain isolation, the intrachain crosslinking experiences the transition from coil through pearl-necklace to globular state.

Zwitterionic Polymer Hairy Coating onto Mesh toward Easy Oil/Water Separation.

A zwitterionic polymeric hair-coated stainless steel mesh membrane is fabricated, which demonstrates efficient separation of oil/water mixtures and emulsions. The hairy coating of poly(divinylbenzene-co-vinylbenzene chloride) is generated by precipitation cationic polymerization, and subsequently grafting a zwitterionic polymer layer by atom transfer radical polymerization of sulfobetaine methacrylate. The microstructure of the hairy coating is tunable from an array of individual nanofibers to porous networks by interweaving of the hairs.