Two-dimensional phase behaviour and ordering of branched chain glycerophosphoethanolamines (n-16PEs) having a 2-branched hexadecanoyl chain (the side chains are methyl, ethyl, pentyl and tetradecyl) at the sn-1 position of the glycerol backbone and an unbranched hexadecyl residue at the sn-2 position, are systematically studied. The ordering of the alkyl chains is increasingly disturbed by short side chains of increasing length so that at n = 5 a condensed monolayer phase cannot be formed. Further side chain elongation enhanced again the ordering with the consequence that a tetradecyl side chain leads to texture and thermodynamic properties of the monolayer which correspond to those of a triple-chain phospholipid. Texture and shape of the dendritic or fractal-like condensed phase domains are similar to that known from double-chain phosphatidylamine monolayers. However, in agreement with the ordering, individual differences in the inner textures are observed at different side chain lengths. © Springer-Verlag 1999.
CITATION STYLE
Siegel, S., & Vollhardt, D. (1999). Long-range orientational order of branched chain phospholipid monolayers. Progress in Colloid and Polymer Science, 112, 54–59. https://doi.org/10.1007/3-540-48953-3_12
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