Dispersible microporous diblock copolymer nanoparticlesviapolymerisation-induced self-assembly

Abstract

Dispersible microporous polymer nanoparticles formed via the RAFT-PISA polymerisation of divinylbenzene and fumaronitrile using a PEG macro-CTA.

Dispersible porous classical polymer photocatalysts for visible light-mediated production of pharmaceutically relevant compounds in multiple solvents

“…The aggregated particle morphology observed is not typically observed for particles produced by PISA; however, similar structures have previously been reported for hypercrosslinked systems. 29,35 This morphology is attributed to the crosslinking of the small particles by DVB. The photocatalytic porous material could be easily dispersed in a spectrum of solvents with polarity ranging from 0.099 to 1 (water to toluene; Fig.…”

“…Recently, however, classical microporous organic polymeric materials have been developed which have high surface areas. [29][30][31] This enhanced surface area may be utilised in conjunction with the recently developed organic small molecule photocatalytic monomers to produce a photocatalytically active porous classical polymeric material. 32 Moreover, this new material may provide a platform to produce a new class of polymer photocatalysts that are colloidally stable in a wide range of solvents.…”

“…RAFTmediated polymerisation induced self-assembly (PISA) may be utilised to ensure that the stabilising polymer chains extend from the surface which ensure the easy dispersibility of the photocatalytic material. 29,33 Further, to enhance the potential of the photocatalytic material its surface area should be maximised. Porous classical polymer particles have previously been reported through the combination of divinyl benzene (DVB) and fumaronitrile (FN).…”

“…Porous classical polymer particles have previously been reported through the combination of divinyl benzene (DVB) and fumaronitrile (FN). 29,34 This produces a highly crosslinked polymeric material with a microporous structure. Photocatalytic units with controllable donor acceptor units as well as conjugation length may be incorporated into this porous material.…”

“…2a, S1 and S2). 29 This creates a highly crosslinked particle core containing a small portion of photocatalytic units (0.33 mol%). This core is stabilised by easily solvated PEG chains that extend from the surface into the continuous phase.…”