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Pulsed laser photolysis synthesis

Pulsed laser photolysis synthesis and gel permeation chromatography (GPC) are used to determine propagation rate constants for free-radical polymerizations. Free-radical polymerization used for industrial production of polymers shows better tolerance to trace amounts of oxygen and impurities compared with other processes [11],... [Pg.10]

Microemulsion-mediated materials synthesis employs three basic methods, as illustrated in Fig. 3 [17]. The microemulsion-plus-trigger method (Fig. 3, method a) is based on a single microemulsion. The fluid system is activated in some way in order to initiate the reactions that eventually lead to particle formation. Pulse radiolysis and laser photolysis have served as triggers for the preparation of nanosize gold particles [41]. In the case of metal oxides, temperature elevation can provide the needed trigger action hydrated metal ions solubilized... [Pg.556]

The laser flash photolysis technique relies on the use of a pulsed UV laser for the rapid synthesis of the reactive intermediate of interest by photochemical decomposition of a suitable stable precursor, and (most commonly) fast time-resolved UV/VIS spectrophotometry to detect the species and monitor its decay19. The absorbance-time profile so... [Pg.950]

Cathodic reduction of Group VI carbonyls [M(CO)6] and [M(CO)sPR3] in the presence of PR3 or THF leads to facile substitution of CO and/or PRs. This method may be a useful alternative to the usual photochemical synthesis, and most likely proceeds by rapid dissociation of a CO or PR3 ligand from the reduced (19-electron) complex. Laser pulse photolysis of [WfCOle] in methylcyclohexane at room temperature produces... [Pg.240]


See other pages where Pulsed laser photolysis synthesis is mentioned: [Pg.225]    [Pg.66]    [Pg.257]    [Pg.150]    [Pg.53]    [Pg.88]   
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