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- W1965500257 abstract "BACKGROUND: It is well known that, due to their extremely low polarity, polysiloxanes are incompatible with almost any organic system. This incompatibility leads to phase separation in mixed siloxane–organic systems. RESULTS: Three siloxane–organic copolymers, poly[(5,5′-methylene-bis-salicylaldehyde)-imine-(1,3-bis(propylene)tetramethyldisiloxane)] (Paz1), poly[(2,5-dihydroxy-1,4-benzoquinone)-imine-(1,3-bis(propylene)tetramethyldisiloxane)] (Paz2) and poly[1,3-bis(propylene)tetramethyldisiloxane diamide] (Pam), were prepared by the reaction of 1,3-bis(3-aminopropyl)tetramethyldisiloxane with appropriate organic partners (5,5′-methylene-bis-salicylaldehyde, 2,5-dihydroxy-1,4-benzoquinone and oxalyl chloride, respectively). The morphologies dictated by the incompatibility between siloxane and polar organic moieties were investigated using differential scanning calorimetry and scanning electron microscopy. The surface activity of the copolymers and water vapour sorption capacity were also measured. CONCLUSION: Even though the polar sequences are very short ones, the highly flexible siloxane-containing sequence permits the self-assembly of these into more or less polar domains. Such an organization influences the properties of the resulting materials, an important place being occupied by the surface properties. Copyright © 2009 Society of Chemical Industry" @default.
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- W1965500257 date "2009-06-01" @default.
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- W1965500257 title "Morphology and surface properties of some siloxane-organic copolymers" @default.
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- W1965500257 doi "https://doi.org/10.1002/pi.2581" @default.
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