Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Poly organoclay composites

Sen et al. [75] prepared PS nanocomposites by free radical polymerization in the presence of organically modified MMT with low-molecular weight quartemized poly(styrene-b-4-vinylpyridine) (SVP) (Table 3.6). Clay modification was carried out in different compositions of THF and water. Copolymer intercalation and thermal stability of the resulting organoclays depended on the THF/water proportion. Greater distances were obtained... [Pg.88]

Aliphatic polyester layered silicate nanocomposites based on poly(e-caprolactone) (PCL) and on plasticized poly(L-lactide) (PLA) have been prepared first by melt blending of the respective polymer matrix with different (organo-modified) montmorillonites. It has been demonstrated that melt blending with organo-modified clay such as Cloisite 20A, 25A or SOB, yields intercalated nanocomposites with the possibility of partial exfoliation. Even at low organoclay content, substantial improvement of thermal stability, gas barrier properties and physical-mechanical performances have been noticed. However, melt blending of natural montmorillonite with PCL or neat (non plasticized) PLA leads to microphase-separated compositions. [Pg.348]

See other pages where Poly organoclay composites is mentioned: [Pg.733]    [Pg.665]    [Pg.2301]    [Pg.316]    [Pg.99]    [Pg.129]    [Pg.57]    [Pg.104]    [Pg.67]    [Pg.385]    [Pg.22]    [Pg.29]    [Pg.257]    [Pg.573]    [Pg.89]    [Pg.200]    [Pg.201]    [Pg.219]    [Pg.374]    [Pg.408]    [Pg.378]   
See also in sourсe #XX -- [ Pg.16 ]



SEARCH



Organoclays

© 2024 chempedia.info