Journal
MACROMOLECULES
Volume 48, Issue 21, Pages 7755-7764Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.macromol.5b01638
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Funding
- LabEx MiChem part of French state funds [ANR-11-IDEX-0004-02]
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The in situ generation of an anionic initiator X- obtained by the deprotonation of various secondary amides with tBuP(4) phosphazene base was tested as possible way to initiate the polymerization of 1,2-epoxybutane. The initiation efficiency of different amide-containing molecules was investigated. Particular attention was given to the detection of eventual transfer or side reactions, especially due to nucleophilic attacks on the initiator moiety at the alpha-chain end. In all cases, the initiation of the polymerization by the amidate anion was effective. And in most cases, the polymerization proceeded in a controlled manner to afford amide end-capped poly(butylene oxide) with narrow molar mass distribution and expected molar masses.
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