1 research outputs found
Organocatalyzed Photoredox Polymerization from Aromatic Sulfonyl Halides: Facilitating Graft from Aromatic C–H Bonds
Aromatic sulfonyl
halides are readily accessible from many sources. With newly synthesized <i>N</i>-arylÂphenothiazine catalysts, organocatalyzed photoredox
polymerization has been developed with arylsulfonyl halides initiators
using white or purple LEDs light sources. This method allows the preparation
of polyÂ(meth)Âacrylates and polyÂ(meth)Âacrylamides possessing a broad
scope of (hetero)Âaryl chain ends without metal-contamination concern.
Investigations such as MALDI-TOF analysis, chain extension, and “ON/OFF”
control experiments confirmed the fidelity of the polymer structure
and reliability of this method. Moreover, this method facilitates
the two-step preparation of brush polymers from polystyrene through
an electrophilic aromatic substitution/organocatalyzed photopolymerization
sequence