Polymerization atom-transfer

Wang JS, Matyjaszewski K (1995) Controlled living radical polymerization - atom transfer radical polymerization in the presence of transition metal complexes. J Am Chem Soc 117 5614-5615... [Pg.58]

The patterned organosilane monolayers introducing organolsilane molecule with a polymerization initiating unit are useful as template surfaces for site-specific polymerization. Atom transfer radical polymerization (ATRP) unit was immobilized as a monolayer component. Since ATRP is one of the most successful methods for polymerizing a variety of monomers in a controlled fashion [44, 45], tailor-made surface topography is possible. Several reports have described the formation of polymer thin film by the radical polymerization from the immobilized ATRP initiator [46, 47],... [Pg.210]

Controlled free-radical polymerizations atom transfer free-radical polymerizations (ATRP) and aqueous ATRP... [Pg.116]

J.-S. Wang, K. Matyjaszewski, Controlled/ Living Radical Polymerization. Atom Transfer Radical Polymerization in the Presence of Transition-Metal Complexes./. Am. Chem. Soc. 1995,117, 5614-5615. [Pg.111]

Living radical polymerization (atom transfer radical pol5mierization) has been developed which allows for the controlled polymerization of acrylonitrile and comonomers to produce well defined linear homopolymer, statistical copolymers, block copolymers, and gradient copolymers (214-217). Well-defined diblock copolymers with a polystyrene and an acrylonitrile-styrene (or isoprene) copolymer sequence have been prepared (218,219). The stereospecific acrylonitrile polymers are made by solid-state urea clathrate polymerization (220) and organometallic compounds of alkali and alkaline-earth metals initiated polymerization (221). [Pg.240]

Atom Transfer Radical Polymerization. Atom transfer radical polymerization (ATRP) (80,81) involves reversible homol5d ic cleavage of a carbon-halogen bond by a redox reaction between an organic halide (R-X) and a transition metal, such as copper(I) complexed with 2,2 -bipyridine (bpy), as illustrated in reaction 20 ... [Pg.8198]

Matyjaszewski, K. (1998). Radical nature of Cu-catalyzed controlled radical polymerizations (atom transfer radical polymerization). Macromolecules, 3/(15) 4710-4717. [Pg.925]

Xia, J., and Matyjaszewski, K. (1997). ControUed/ living radical polymerization. Atom transfer radical polymerization using multidentate amine ligands. Macromolecules, 50(25) 7697-7700. [Pg.928]

Haddleton, D. M., et al. (1997). Identifying the nature of the active species in the polymerization of methacrylates inhibition of methyl methacrylate homopolymerizations and reactivity ratios for copolymerization of methyl methacrylate/n-butyl methacrylate in classical anionic, alkyUithium/trialkylaluminum-initiated, group transfer polymerization, atom transfer radical polymerization, catalytic chain transfer, and classical free radical polymerization. Macromolecules, 30(14) 3992-3998. [Pg.933]

Bielawski, C. W., Morita, T., and Grubbs, R. H. (2000). Synthesis of ABA triblock copolymers via a tandem ring-opening metathesis polymerization atom transfer radical polymerization approach. Macromolecules, 55(3) 678-680. [Pg.936]

To overcome these problems, a surface-initialed living radical polymerization technique is used for preparing polymer brush surfaces, where precisely controlled polymer chains are densely tethered. The technique also can be used to construct block copolymer on the surfaces by sequentially grafting another polymer via the active polymer-end groups of a first-grafted polymer brush. As a typical surface-initiated Uving radical polymerization, atom transfer radical polymerization (ATRP) and reversible addition-fragmentafion chain transfer radical (RAFT) polymerization are... [Pg.212]

Xia, J.H., Matyjaszewski, K. 1997. Controlled/"Living" Radical Polymerization. Atom Transfer Radical Polymerization Using Multidentate Amine Ligands. Macromolecules 30 7697-7700. [Pg.226]

Abstract This chapter summarizes the properties and most representative applications of pH-responsive polymers in the biomedical field.The most common methodologies to synthesize pH-responsive polymers such as emulsion polymerization, group transfer polymerization, atom transfer radical polymerization and reversible addition-fragmentation chain transfer polymerization are described. This chapter also discusses the most important applications of pH-responsive polymers in drug and gene delivery and the use of these systems as biosensors, taking into account the chemical and physical properties of these smart polymer systems. [Pg.45]

Thermosensitive, and amphiphilic polymer bmshes optically active polymers consist of helical poly(iV-propargylamide) main chains and thermosensitive poly(iV-iso-propylacrylamide) (PNlPAm) side chains, were prepared via a novel methodology combining catalytic polymerization, atom transfer radical polymerization (ATRP), and click chemistry. The characterization of GPC, FT-IR, and H-NMR measurements indicated the successful synthesis of the novel amphiphilic polymer brashes. For the confirmation of helical structure of the polymers backbones and the optical activity of the final brashes used UV-Vis and CD spectra. The polymer with optically active cores (helical polyacetylenes) and thermosensitive shells (PNlPAm) brashes self-assembled in aqueous solution forming core/shell structured nanoparticles [137]. [Pg.54]

He, T, Li, D., Sheng, X., and Zhao, B. (2004) Synthesis of ABC 3-miktoarm star terpolymers from a trifunctional initiator by combining ring-opening polymerization, atom transfer radical polymerization, and nitroxide-medialed radical polymerization. Macromolecules, 37,3128-3135. [Pg.129]

Since chemically grafted SPB show greater stabifity and controllable grafting density, this method of preparation has become more popular than physical adsorption. Chemical methods include photoemulsion polymerization, thermocontrolled emulsion polymerization, atom transfer radical polymerization (ATRP), and reversible addition-fragmentation chain transfer (PJVFT). [Pg.196]