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, AT{ND(ES

, Dc oette formula on peut ohtenk egalement la reLation pour la variation du nombre total de molécules du polymère ou la vitesse du perte de poids. Aussi ces formules peuvent être encore simplifiées selon les processus particuliers de I'initiation, de la terminaison, Nous pouvons appliquer le principe de l'état stationaire qui simplifie cette formule, p.312

, ANNEXE, vol.2

C. Chromatographe, Carlo Erba Colonne capillaire : phase stationnaire SE30 (un silicone), longueur:25 m, largeur:0,3 mm Température d'injection : 300 "C, colonne à 150"C montée en température SoC / min à 300 "C injection :1-21tl Gaz vecteur: He lnterface : split Spectrométre de masse : Nermag R 1010-C quadrupôle ions positifs El 70 eV

. Bibliotheque-de-spectres, EPA/NIH 33 849 spectres -LAMMA-sOO Longueur d'onde : 286,5 ou 225 nm En ions positifs ou ions negatifs Gamme de masse : 0 à 740 daltons Résolution 800 à la masse 208 daltons à 10% vallée Echantillon placé sur les

-. Longueur, 5 ou 249 nm Support d'échantillon : résine "Spurr' (méthacrylate) En ions positifs ou négatifs Gamme de masse : 18 à 3000 daltons Résolution variant de quelques centaines à quelques milliers en mode directe ou hétérodyne -Py-GC-MS Pyrolyseur du type filament (Gridel Co.) Tpy 900'C Tpy 10 s GC-MS Hewlett Packard HP 5992A lons positifs El 70 eV gaz vecteur: He 313 -NMR Bruker 400 MHz, 100 MHz (13C) Perkin-Elmer 60 MHz (1H), spectromètre utilisé pour les analyses de contrôle des produits de synthèses, p.286