Water-Dispersible Carbon Black Nanocomposites Prepared by Surface-Initiated Atom Transfer Radical Polymerization in Protic Media

Abstract

The synthesis of hydrophilic carbon black composites by grafting 2-(dimethylamino)ethyl methacrylate (DMAEMA) from functionalized carbon black using atom transfer radical polymerization (ATRP) is reported. The polymerizations were performed in methanol/water mixtures near ambient temperatures using CuBr/CuBr 2 /2,2′-bipyridine as the catalytic system. Under acidic conditions or upon quaternization with ethyl bromide, the polymer-bound carbon black can form stable dispersions in water. TGA, light scattering, and AFM were used to characterize the polymer bound carbon black. 2-Hydroxyethyl methacrylate (HEMA) was random and block copolymerized with DMAEMA to form functional carbon black nanocomposites.

Double-responsive polymer brushes on the surface of colloid particles

“…mobilization and protein separation. Furthermore, PDMAEMA brushes can be quaternized with alkyl bromide to achieve permanent antibacterial surfaces [32,34].…”

“…Because of these special properties, PDMAEMA based (co)polymers have been extensively used in the fields of biomaterials and gene delivery systems [25][26][27]. Surface-initiated ATRP of DMAEMA from planar substrates [28][29][30], inorganic particles [31,32], or polymer microspheres [33,34] has been reported in the previous references. In this paper, the synthesis and characterization of PDMAEMA brushes from functionalized PS latex by surface-initiated ATRP are described (Scheme 1).…”

Poly(glycidylmethacrylate) brushes generated on poly(VBC) beads by SI-ATRP technique: Hydrazine and amino groups functionalized for invertase adsorption and purification

“…The grafted fibrous polymer chains could increase the adsorption capacity of the support by allowing multilayer protein binding [6][7][8][9][10][11]. Surface-initiatedatom transfer radical polymerization (SI-ATRP) is one of the most investigated controlled graft polymerization method, as it can be performed with a variety of functional monomers at mild temperature and in aqueous or organic solvents [12][13][14][15][16][17][18].…”

Fine encapsulation of dual-particle electronic ink by incorporating block copolymer for electrophoretic display application

“…Silica-coated titanium dioxide was commercially available from Dupont Company. Carboxylate-stabilized carbon black [35], CB-COONa, with 0.52 mmol carboxylate per gram of carbon black was supplied by Cabot Co. Gelatin (GE, type B, alkali processed, isoelectric point pH = 4.7), sodium carboxymethylcellulose (NaCMC), glutaraldehyde aqueous solution (25 wt.%), acetic acid, tetrachloroethylene (TCE), and sodium dodecyl sulfate (SDS) were purchased from Shanghai medical group reagent company and used as received. OLOA 1200 (polyisobutylene succinimide) was offered by Chevron Corporation.…”