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Copolymerization average particle size

When the polymerization is complete, PMMA latex particles will form in a uniform size. Figure 4.3 shows the typical TEM images of PMMA latex particles fabricated by soap-free emulsion polymerization. The particle size is about 250 nm on average. The sulfate ionic groups on the surface of PMMA latex particles prevent them from aggregation. Because the Jg of PMMA is 100 °C, they will not form a film after casting and drying. However, the Eg of PMMA can be lowered by copolymerization with PMA so that cast films are able to form. ... [Pg.81]

In studies of the ERC heterogeneous structure obtained in copolymerization between the epoxy and rubber oligomers that occurs along with the epoxy resin cure (i.e., hot cure compoimds), the average size of the rubber particles was found to be dependent on its polarity and on the level of compatibility with the epoxy resin as well as on the chemical composition of the modifier [132]. The author also showed that the size of the rubber inclusions decreases and the structure of the composition becomes more homogeneous with increase of the polarity of the elastomers and the curing temperature of the ERC. [Pg.135]

See other pages where Copolymerization average particle size is mentioned: [Pg.869]    [Pg.34]    [Pg.64]    [Pg.2924]    [Pg.2923]    [Pg.336]    [Pg.40]    [Pg.127]    [Pg.127]    [Pg.131]    [Pg.353]    [Pg.44]    [Pg.45]    [Pg.113]    [Pg.119]    [Pg.213]    [Pg.602]    [Pg.88]    [Pg.178]    [Pg.310]    [Pg.218]    [Pg.219]    [Pg.771]    [Pg.520]    [Pg.12]    [Pg.113]   
See also in sourсe #XX -- [ Pg.427 ]



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