期刊
POLYMER
卷 242, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2022.124586
关键词
Green chemistry; Eutectic mixtures (EM); Atom transfer radical polymerization (ATRP); Block copolymers
资金
- FCT (Fundacao para a Ciencia e Tecnologia) [SFRH/BD/138793/2018]
- R&D unit CEMMPRE-285 [UID/EMS/00285/2019, UIDB/00285/2020]
- MATIS [CENTRO-01-0145-FEDER-000014]
- European Regional Development Fund (FEDER) through Programa Operacional Regional do Centro (CENTRO2020)
- FEDER funds through the program COMPETE -Programa Operacional Factores de Competitividade
- FCT-Fundacao para a Ciencia e Tecnologia [UID/EMS/00285/2020]
- FEDER-European Regional Development Fund through the COMPETE Programme (Operational Programme for Competitiveness)
- FCT (Portuguese Foundation for Science and Technology) [REEQ/481/QUI/2006, RECI/QEQ-QFI/0168/2012, CENTRO-07-CT92-FEDER002012]
- Rede Nacional de Ressonancia Magnetica Nuclear (RNRMN)
- Fundação para a Ciência e a Tecnologia [SFRH/BD/138793/2018] Funding Source: FCT
A bio-based eutectic mixture was used as a solvent for the atom transfer radical polymerization (ATRP) of hydrophobic and hydrophilic monomers, resulting in well-defined homopolymers and amphiphilic block copolymers. This unique solvent system provides a convenient method for the synthesis of ABs.
A bio-based eutectic mixture (EM), composed of L-menthol and thymol was used, for the first time, as solvent for the atom transfer radical polymerization (ATRP) of hydrophobic monomers (methyl acrylate (MA), methyl methacrylate (MMA), 2-(dimethylamino) ethyl methacrylate (DMAEMA), glycidyl methacrylate (GMA)) and hydrophilic monomers (2-hydroxyethyl acrylate (HEA), hydroxyethyl methacrylate (HEMA) and poly(ethylene glycol) methyl ether acrylate (OEOA)). Well-defined homopolymers (1.02 < D < 1.47) were obtained using only 225 ppm of copper catalyst and a monomer/EM ratio (v/v) of 0.75. As a proof-of-concept, this new polymerization system allowed the preparation of well-defined amphiphilic block copolymers (ABs) of PMA-b-PHEA-Br, PMA-b-POEOA-Br and PDAMEMA-b-PHEA-Br by one-pot supplemental activator and reducing agent (SARA) ATRP, as well as a PMA-b-PHEA-b-PBA-Br triblock copolymer, after chain extension of a PMA-b-PHEA-Br diblock copolymer. The use of a unique solvent system opens a new route for the easy synthesis of ABs, with conditions that can be applied in large scale production.
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