6533b822fe1ef96bd127d5c2
RESEARCH PRODUCT
Functionalization of TiO2Nanoparticles with Semiconducting Polymers Containing a Photocleavable Anchor Group and Separation via Irradiation Afterward
Wolfgang TremelMuhammed Nawaz TahirFlorian MathiasRudolf Zentelsubject
chemistry.chemical_classificationCatecholPolymers and PlasticsOrganic ChemistryRadical polymerizationtechnology industry and agricultureNanoparticlePolymerCondensed Matter PhysicsMiscibilitychemistry.chemical_compoundchemistryPolymer chemistryMaterials ChemistrySurface modificationReversible addition−fragmentation chain-transfer polymerizationPolystyrenePhysical and Theoretical Chemistrydescription
The controlled radical polymerization (RAFT polymerization) of semiconducting polymers based on poly(4,4′-dimethyl-triphenylamine) is described. These polymers are afterward end-functionalized with a photocleavable group and an anchor unit (catechol) for oxidic nanoparticles (NPs). Serving as a reference, polystyrene oligomers with the same end groups are also synthesized. Using these polymers allows functionalization of the TiO2-NPs, leading to an improved solubility and miscibility in organic solvents or polymer matrices. Irradiation in the UV region is used to split the photocleavable group and remove the polymer chains from the NPs, which leads to their aggregation.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-02-22 | Macromolecular Chemistry and Physics |