期刊
MACROMOLECULAR THEORY AND SIMULATIONS
卷 18, 期 7-8, 页码 402-419出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/mats.200900019
关键词
kinetics; living polymerization; nitroxide; nitroxidemediated polymerization (NMP); PREDICI; simulations
资金
- ARKEMA
- University of Provence
- CNRS
Simulations of conversion versus time, molecular weight ((M) over bar (n)), polydispersity index (PDI), and living fractions versus conversion plots are performed using the PREDICI software, to study the influence of several kinetic parameters on the living and controlled character of nitroxidemediated polymerization (NMP). In particular, the crucial role of the main equilibrium represented by both k(d) and k(c) (the rate coefficients respectively of dissociation and recombination) is highlighted. On the other hand, the importance of the initiation step, the targeted (M) over bar (n) value, and the initial excess of free nitroxide are also demonstrated. It is further proved that side reactions, such as disproportionation and transfer to solvent, have a strong impact on the polymerization characteristics.
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