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Triazolinyl radicals – new additives for controlled radical polymerization
Author(s) -
Steenbock Marco,
Klapper Markus,
Müllen Klaus
Publication year - 1998
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/(sici)1521-3935(19980501)199:5<763::aid-macp763>3.0.co;2-s
Subject(s) - polymerization , polymer chemistry , radical polymerization , nitroxide mediated radical polymerization , styrene , radical , monomer , chemistry , methacrylate , polymer , living free radical polymerization , kinetic chain length , chain termination , reversible addition−fragmentation chain transfer polymerization , ionic polymerization , chain transfer , cobalt mediated radical polymerization , copolymer , organic chemistry
The effect of the addition of the triazoline derivative 1 on the radical polymerization of styrene and some methacrylates is discussed. The polymerization of styrene in the presence of 1 exhibits the characteristics of a controlled radical polymerization such as a linear time‐conversion development and increasing molecular weights versus conversion. Additionally, even monomers other than styrene, namely methacrylates, can be polymerized in a controlled fashion. Furthermore, the properties of the isolated PS and PMMA samples were studied. It will be shown, that polymers obtained by controlled radical polymerization in the presence of 1 possess triazolinyl end‐groups and the degree of end‐functionalisation will be estimated. To demonstrate the ability of the polymers to reinitiate, chain extension experiments were performed on our PS‐samples.