Azobenzene amphiphiles containing beta-alanine, L-lysine or beta-homol
ysine moieties were synthesized and characterised. Stable monomolecula
r layers at the air/water interface and LB multilayers has been obtain
ed from some of them. One sample of azobenzenes synthesized has been s
hown to undergo a reversible trans/cis photoisomerization upon light i
rradiation in both solution and LB multilayer.