Indium chloride catalysed benzyl bromination using continuous flow technology.

This report describes the development of a water-tolerant green catalyst for benzyl bromination. The catalyst, indium chloride, exhibits high catalytic activity with a variety of toluene derivatives in continuous flow. Good yields (59-77%) were obtained in all the cases.

Synthesis of Block Copolymer Brush by RAFT and Click Chemistry and Its Self-Assembly as a Thin Film.

A well-defined block copolymer brush poly(glycidyl methacrylate)--(poly(methyl methacrylate)-- poly(oligo(ethylene glycol) methyl ether methacrylate)) (PGMA--(PMMA--POEGMA)) is synthesized via grafting from an approach based on a combination of click chemistry and reversible addition-fragmentation chain transfer (RAFT) polymerization. The resulting block copolymer brushes were characterized by H-NMR and size exclusion chromatography (SEC). The self-assembly of the block copolymer brush was then investigated under selective solvent conditions in three systems: THF/water, THF/CHOH, and DMSO/CHCl.

Development of PVDF Ultrafiltration Membrane with Zwitterionic Block Copolymer Micelles as a Selective Layer.

In recent years, block copolymer micellar assemblies with the formation of structured nanoparticles have been considered as an emerging technology in membrane science. In this work, the poly(methyl methacrylate)-block-poly(sulfobetaine methacrylate) copolymer was directly synthesized using Reversible Addition-Fragmentation chain Transfer (RAFT) polymerization and self-assembled in a selective medium (2,2,2-trifluroethanol/water). Then, poly(methyl methacrylate)-block-poly(sulfobetaine methacrylate) copolymers were casted onto a commercial PVDF membrane to form a thin porous selective layer.