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Monodisperse polymer flow behavior

For the purpose of illustration, let us consider the degradation behavior of a hypothetical monodisperse polymer fraction flowing along the central streamline. [Pg.140]

In continuous operation mode, both feed and effluent streams flow continuously. The main characteristic of a continuous stirred tank reactor (CSTR) is the broad residence time distribution (RTD), which is characterized by a decreasing exponential function. The same behavior describes the age of the particles in the reactor and hence the particle size distribution (PSD) at the exit. Therefore, it is not possible to obtain narrow monodisperse latexes using a single CSTR. In addition, CSTRs are hable to suffer intermittent nucleations [89, 90) that lead to multimodal PSDs. This may be alleviated by using a tubular reactor before the CSTR, in which polymer particles are formed in a smooth way [91]. On the other hand, the copolymer composition is quite constant, even though it is different from that of the feed. [Pg.287]

See other pages where Monodisperse polymer flow behavior is mentioned: [Pg.22]    [Pg.3133]    [Pg.140]    [Pg.362]    [Pg.253]    [Pg.227]    [Pg.2822]    [Pg.6760]    [Pg.1709]    [Pg.198]    [Pg.93]    [Pg.390]    [Pg.436]    [Pg.479]   
See also in sourсe #XX -- [ Pg.236 ]



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