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| Untersuchte Arbeit: Seite: 50, Zeilen: 14, 20-26 |
Quelle: Hawker 2002 Seite(n): 471, Zeilen: 1, 6-13 |
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| Unimolecular alkoxyamine initiators
[...] [...] The structure of these initiators was based on a specially designed alkoxyamine functionality that is present at the chain end of the growing polymer during its dormant phase. The principle of design of NMP initiators is that the C-O bond of the small molecule alkoxyamine derivatives 1 is thermolytically unstable and decomposes on heating to give initiating 2 and mediating nitroxide radicals 3 in the correct 1:1 stoichiometry; next the initiation of polymerization follows and one receives the polystyrene derivatives 4 (Scheme 2-13). |
10.2.2 Unimolecular Initiators
[...] The structure of these initiators was based on the alkoxyamine functionality that is present at the chain end of the growing polymer during its dormant phase. The C-O bond of the small-molecule alkoxyamine derivative, 11, is therefore expected to be thermolytically unstable and decompose on heating to give an initiating radical, namely, the a-methyl benzyl radical, 12, as well as the mediating nitroxide radical, 5, in the correct 1 : 1 stoichiometry (Scheme 10.5). Following initiation the polymerization would proceed as described previous for the bimolecular case to give the polystyrene derivative, 13. |
No source given; nothing has been marked as a citation. Scheme 2-13 in Bsi (page 51) is identical to Scheme 10.5 in Matyjaszewski and Davis, 2002, (page 470). |
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