NDLI: Methacrylic block copolymers by sulfur free RAFT (SF RAFT) free radical emulsion polymerisation

Content Provider	Royal Society of Chemistry (RSC)
Author	Engelis, Nikolaos Godfrey, Jamie Anastasaki, Athina Hand, Rachel Nikolaou, Vasiliki Haddleton, David M. Simula, Alexandre Nurumbetov, Gabit
Copyright Year	2017
Abstract	We demonstrate the use of sulfur free reversible addition–fragmentation chain transfer polymerisation (RAFT) as a versatile tool for the controlled synthesis of methacrylic block and comb-like copolymers. Sulfur free RAFT (SF-RAFT) utilises vinyl terminated macromonomers obtained via catalytic chain transfer polymerisation (CCTP) of methacrylates as a chain transfer agent (CTA), and thus precluding adverse aspects of the RAFT such as toxicity of dithioesters. We have synthesised a range of narrow dispersity block copolymers (Đ < 1.2) and comb-like macromolecules by employing emulsion polymerisation allowing for the preparation of relatively large quantities (∼50 g) of the above mentioned copolymers promptly and straightforwardly. Copolymers were characterised using 1H NMR, size exclusion chromatography (SEC), thermogravimetric analysis (TGA) and matrix-assisted laser desorption/ionization time of flight mass spectroscopy (MALDI-TOF-MS) techniques.
Starting Page	1084
Ending Page	1094
Page Count	11
File Format	HTM / HTML PDF
ISSN	17599954
Volume Number	8
Issue Number	6
Journal	Polymer Chemistry
DOI	10.1039/c6py02038k
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Spectroscopy Thermogravimetric analysis Catalytic chain transfer List of Chicago Transit Authority bus routes SEC CTA Chain transfer Emulsion polymerization Ionization Size-exclusion chromatography Nuclear magnetic resonance Sulfur U.S. Securities and Exchange Commission
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Biochemistry Bioengineering Biomedical Engineering Polymers and Plastics

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