Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 1786-1795 |
| Number of pages | 10 |
| Journal | Journal of Polymer Science, Part A: Polymer Chemistry |
| Volume | 51 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 15 Apr 2013 |
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In situ nitroxide-mediated polymerization of styrene promoted by the N-tert-butyl-α-isopropylnitrone/bpo pair : ESR investigations. / Detrembleur, C.; Clément, J.-L.; Sciannaméa, V.; Jérôme, C.; Catala, J.-M.; Gigmes, D.; Autissier, L.; Botek, E.; Zarycz, N.; Champagne, B.
In: Journal of Polymer Science, Part A: Polymer Chemistry, Vol. 51, No. 8, 15.04.2013, p. 1786-1795.Research output: Contribution to journal › Article
TY - JOUR
T1 - In situ nitroxide-mediated polymerization of styrene promoted by the N-tert-butyl-α-isopropylnitrone/bpo pair
T2 - ESR investigations
AU - Detrembleur, C.
AU - Clément, J.-L.
AU - Sciannaméa, V.
AU - Jérôme, C.
AU - Catala, J.-M.
AU - Gigmes, D.
AU - Autissier, L.
AU - Botek, E.
AU - Zarycz, N.
AU - Champagne, B.
PY - 2013/4/15
Y1 - 2013/4/15
N2 - The styrene polymerization initiated by benzoyl peroxide (BPO) in the presence of N-tert-butyl-α-isopropylnitrone as nitroxide precursor is well-controlled provided that a prereaction between the nitrone and BPO is carried out in suitable conditions prior to polymerization at a higher temperature. Electron spin resonance (ESR) spectroscopy was implemented to probe the nitroxides formed during both steps, that is, the prereaction and polymerization, and to get crucial information regarding the structure of the nitroxides responsible for the polymerization control. ESR studies combined with first principles calculations have evidenced that nitroxides observed during the prereaction in the presence of styrene and during the polymerization steps consist of a mixture of two macronitroxides. One is formed by the addition of a growing polystyrene chain to the nitrone as would be expected. However, the second one results from the addition of a polystyrene chain to tert-butyl nitroso that is in situ formed presumably by decomposition of the first macronitroxide type.
AB - The styrene polymerization initiated by benzoyl peroxide (BPO) in the presence of N-tert-butyl-α-isopropylnitrone as nitroxide precursor is well-controlled provided that a prereaction between the nitrone and BPO is carried out in suitable conditions prior to polymerization at a higher temperature. Electron spin resonance (ESR) spectroscopy was implemented to probe the nitroxides formed during both steps, that is, the prereaction and polymerization, and to get crucial information regarding the structure of the nitroxides responsible for the polymerization control. ESR studies combined with first principles calculations have evidenced that nitroxides observed during the prereaction in the presence of styrene and during the polymerization steps consist of a mixture of two macronitroxides. One is formed by the addition of a growing polystyrene chain to the nitrone as would be expected. However, the second one results from the addition of a polystyrene chain to tert-butyl nitroso that is in situ formed presumably by decomposition of the first macronitroxide type.
UR - http://www.scopus.com/inward/record.url?scp=84875137895&partnerID=8YFLogxK
U2 - 10.1002/pola.26559
DO - 10.1002/pola.26559
M3 - Article
VL - 51
SP - 1786
EP - 1795
JO - Journal of Polymer Science, Part A: Polymer Chemistry
JF - Journal of Polymer Science, Part A: Polymer Chemistry
SN - 0887-624X
IS - 8
ER -