Table 1.

Peak maximum positions and assignments for ATR-FTIR spectrum of the individual polyelectrolytes (PSS and PAH), and the 10 bilayer polyelectrolyte multilayer.

Peak Assignment	PSS	PAH
alkyl C-H stretching	2931
amide I		1629
aromatic -C=C- stretching	1601
amide II		1530
aromatic -C=C- stretching	1495
C-H bending		1465
aromatic -C=C- stretching	1453
aromatic -C=C- stretching	1411
-S=O anti-symmetric stretching overlapping with aromatic -C=C- bending	1208
-SO3− anti-symmetric stretching	1175
-C-H aromatic	1126
-SO3− symmetric stretching	1036
-C-H aromatic	1008
=C-H deformation	834
=C-H deformation	774

References used for assignments are: for PAH; Li⁵⁰, Cornejo⁵¹,and PSS; Świderski⁵², Yang⁵³ and Zundel⁵⁴; for both PAH and PSS; Coates⁵⁵, and Stuart⁵⁶.