Morphology and surface properties of some siloxane–organic copolymers

摘要: BACKGROUND: It is well known that, due to their extremely low polarity, polysiloxanes are incompatible with almost any organic system. This incompatibility leads phase separation in mixed siloxane–organic systems. RESULTS: Three 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 appropriate partners (5,5′-methylene-bis-salicylaldehyde, 2,5-dihydroxy-1,4-benzoquinone oxalyl chloride, respectively). The morphologies dictated between siloxane polar moieties investigated using differential scanning calorimetry electron microscopy. surface activity copolymers water vapour sorption capacity also measured. CONCLUSION: Even though sequences very short ones, highly flexible siloxane-containing sequence permits self-assembly these into more or less domains. Such an organization influences properties resulting materials, important place being occupied properties. Copyright © 2009 Society Chemical Industry