Reference

Synthesis of functional polymers by living radical polymerisation

Synthesis of functional polymers by living radical polymerisation. Lecolley, Francois; Waterson, Carl; Carmichael, Adrian J.; Mantovani, Giuseppe; Harrisson, Simon; Chappell, Helen; Limer, Adam; Williams, Paul; Ohno, Kohji; Haddleton, David M.In this study， 26355-01-1 and 2052-01-9 are also used. (Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK). Journal of Materials Chemistry, 13(11), 2689-2695 (English) 2003 Royal Society of Chemistry. CODEN: JMACEP. ISSN: 0959-9428. DOCUMENT TYPE: Journal CA Section: 35 (Chemistry of Synthetic High Polymers) The use of copper(i) halides in conjunction with pyridine imine ligands is reported to lead to a range of controlled mol. wt. and architecture polymers. The use of multifunctional initiators leads to di-, tri- and tetra-functional star polymers based on pentaerythritol cores. The polymns. all follow excellent first order kinetics with Mn increasing linearly with conversion. The polymn. is first order in copper halide. A range of a-functional polymers with 4-[(4-chloro-6-methoxy-1,3,5-triazin-2-yl)amino]phenyl 2-bromo-2-Me propionate, N-hydroxysuccinimide and phthalimide were prepd. which introduce terminal functionality into polymers for subsequent coupling and potential synthesis of conjugates for biol. active compds. Finally block/graft amphiphilic copolymers are demonstrated via the prepn. of a statistical copolymer macroinitiator contg. a hydroxy functionality which is used for the polymn. of dimethylaminoethyl methacrylate prior to esterification of the hydroxy functionality to give living radical polymn. initiators which are used subsequently in the polymn. of Me methacrylate. Copper(I) mediated living radical polymn. is shown to be an effective method for the synthesis of a range of functional synthetic polymers. .

Directing self-assembly of nanoparticles at water/oil interfaces

Directing self-assembly of nanoparticles at water/oil interfaces. Duan, Hongwei; Wang, Dayang; Kurth, Dirk G.; Moehwald, Helmuth ( Max Planck Institute of Colloids and Interfaces, Potsdam 14424, Germany). 108-88-3 and 2052-01-9 are cas registry numbers. These chemicals are also mentioned in this article. Angewandte Chemie, International Edition, 43(42), 5639-5642 (English) 2004 Wiley-VCH Verlag GmbH & Co. KGaA. CODEN: ACIEF5. ISSN: 1433-7851. DOCUMENT TYPE: Journal CA Section: 66 (Surface Chemistry and Colloids) The contact angle of nanoparticles at the water/oil interface can be engineered close to 90° by capping with ligands contg. carboxylic ester terminal groups. This drives the nano-particles to self-assemble into close-packed films, and thus provides the opportunity to create two- or three-dimensional homo- or heterogeneous nanostructures for electronic, optoelec., and magnetic applications. .