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RESEARCH PRODUCT
Polysiloxane-backbone block copolymers in a one-pot synthesis: a silicone platform for facile functionalization.
Paul BoehmHolger FreyMihail Mondeshkisubject
chemistry.chemical_classificationMaterials sciencePolymers and PlasticsMolecular StructureSiloxanesHydrosilylationOrganic Chemistrytechnology industry and agricultureSiliconesmacromolecular substancesPolymerRing-opening polymerizationPolymerizationchemistry.chemical_compoundMonomerchemistryPolymerizationBlock (telecommunications)Polymer chemistryMaterials ChemistryCopolymerSide chaindescription
Block copolymers consisting exclusively of a silicon-oxygen backbone are synthesized by sequential anionic ring-opening polymerization of different cyclic siloxane monomers. After formation of a poly(dimethylsiloxane) (PDMS) block by butyllithium-initiated polymerization of D3, a functional second block is generated by subsequent addition of tetramethyl tetravinyl cyclotetrasiloxane (D4(V) ), resulting in diblock copolymers comprised a simple PDMS block and a functional poly(methylvinylsiloxane) (PMVS) block. Polymers of varying block length ratios were obtained and characterized. The vinyl groups of the second block can be easily modified with a variety of side chains using hydrosilylation chemistry to attach compounds with Si-H bond. Conversion of the hydrosilylation used for polymer modification was investigated.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-05-25 | Macromolecular rapid communications |