A new group of nonionic dicephalic saccharide amides, N-dodecyl-N,N-bis[(3-
D-gluconylamido)propyl]- amine, N-dodecyl-N,N-bis[(3-D-glucoheptonylamido)p
ropyl]- amine, and N-alkyl-N,N-bis [(3-lactobionylamido)propyl]amines (alky
l: n-C12H25, n-C16H33' n-C18H37) were synthesized and characterized. Their
structure and purity were confirmed by means of H-1 and C-13 nuclear magnet
ic resonance analysis and electrospray ionization mass spectrometry. Carbon
spectra were verified using a DEFT experiment. The surface and interracial
properties such as critical micelle concentration (CMC), standard free ene
rgy of micellization, Delta G(CMC') surface excess concentration, Gamma(CMC
), and surface area demand per molecule, A(CMC), were determined. The terti
ary nitrogen atom seems to have a surprising effect on surfactant packing a
t the interface.