A simple and versatile route to amphiphilic polymethacrylates: catalytic chain transfer polymerisation (CCTP) coupled with post-polymerisation modifications

Abstract

Amphiphilic polymers have become key figures in the fields of pharmacology, medicine, agriculture and cosmetics.

Block Copolymers Based on Ethylene and Methacrylates Using a Combination of Catalytic Chain Transfer Polymerisation (CCTP) and Radical Polymerisation

“…[37,47,55] CCTP is ar eliable method to synthesise methacrylic oligomers bearing an w-vinyl double bond and is av ery efficient and scalable technique which has been used in ar ange of industrial applications for > 25 years. [37,38,47,56] In this current work, bis[(difluoroboryl) dimethylglyoximato] cobalt(II) (CoBF) was used as catalyst, as it has been proven to be av ery effective chain transfer agent for the CCTP of MMA and other alkyl methacrylates. [57] Ar ange of poly-(methyl methacrylate)s with different degrees of polymerisation (n)w ere prepared (MMA n ,T able 1).…”

“…[28][29][30][31][32][33][34][35][36] Thepolymers/oligomers bearing avinyl w-end group have been used as precursors for various materials,s uch as multi-block copolymers,amphiphilic dispersants for industrial applications,block, graft and branched copolymers. [37][38][39][40][41] Copolymerisation of methacrylic type w-unsaturated methacrylic oligomers from CCTP with methacrylates,acrylates and styrenic monomers has been studied and is reported to result in different materials. [26,42] In the case of methacrylates,t he chain transfer mechanism involves addition-fragmentation chemistry.…”

Functional nanostructures by NiCCo-PISA of helical poly(aryl isocyanide) copolymers

“…Thus, PPM often reduces the number of synthetic steps required for material syntheses and provides precursor materials that can be modified with a wide variety of functional groups. [5][6][7][8][9][10][11][12][13][14][15] For nanomaterials, reactive functionality provides a convenient and polyvalent means of introducing valuable moieties such as dyes, [16][17][18] catalysts or drugs. 19 PPM can also be employed to dynamically modify nanostructure properties, endowing such constructs with the capability to respond to environmental stimuli.…”

Branched macromonomers from catalytic chain transfer polymerisation (CCTP) as precursors for emulsion-templated porous polymers

“…Catalytic chain transfer polymerisation (CCTP) is a facile and interesting controlled polymerisation technique that has been employed for the preparation of low molecular weight functional polymethacrylates. [15][16][17][18] This technique relies on the catalytic activity of certain low spin cobalt(II) complexes which have very high chain transfer constants, typically several orders of magnitude higher than conventional thiol chain transfer agents. Much of our current knowledge of CCTP comes from investigations carried out by commercial organisations such as DuPont 19 and ICI/Zeneca, 20,21 complemented in academia by Gridnev, 22,23 Heuts, 24 Davis and Haddleton.…”