Chen, Guanghui published the artcileSynthesis of Functional Olefin Copolymers with Controllable Topologies Using a Chain-Walking Catalyst, Name: trimethyloxosulphonium chloride, the publication is Journal of the American Chemical Society (2003), 125(22), 6697-6704, database is CAplus and MEDLINE.
The branching topol. of ethylene polar copolymers was for the first time successfully controlled by copolymerization of ethylene with polar olefins using a palladium-bisimine chain-walking catalyst, in which ethylene pressure and comonomer concentration were used to control the competition between isomerization (chain-walking) and monomer insertion processes. Although the overall branching d. changes slightly, the topol. of the copolymers becomes more dendritic as the ethylene pressure and comonomer feed concentration are decreasing. This provides a straightforward one-pot synthesis to access a full range of functional copolymers having controllable branching topologies. To demonstrate the utility of this methodol., dendritic functional copolymers having hydroxyl, epoxide, and carbohydrate groups were prepared in a one-pot polymerization as potential functional materials.
Journal of the American Chemical Society published new progress about 5034-06-0. 5034-06-0 belongs to chlorides-buliding-blocks, auxiliary class Salt,Aliphatic hydrocarbon chain, name is trimethyloxosulphonium chloride, and the molecular formula is C3H9ClOS, Name: trimethyloxosulphonium chloride.
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