Molecular activation energies (Δμ* 2 ) of L ‐lysine, L ‐tyrosine, L ‐proline, DL ‐alanine, glycerol, orcinol, iodine, DTAB, and TMSOI for blending with melamine‐formaldehyde‐polyvinylpyrrolidone polymer resin illustrated with SEM

Efficient molecular mixing together is a key precondition for industrial exploitation of individual macromolecules for potential product development and quality assurance with resource saving mechanism. Conceptually, MFP (melamine‐formaldehyde‐polyvinylpyrrolidone) polymer resin was mixed with amino acids ( L ‐lysine, L ‐tyrosine, L ‐proline, D L ‐alanine), nonionic surfactants (glycerol, orcinol), iodine as metal and cationic surfactants (DTAB, TMSOI) as dispersants, in 4 : 1 ratio, w/w. A mutual molecular dispersion occurs at a cost of molecular activities with utilization of a sufficient amount of activation energies. The activation energies (Δμ* 2 , kJ mol −1 ) were derived from intrinsic viscosities ([η], kg/L) and partial molar volumes ( V 2 , 10 −6 m 3 /mol), which were calculated from experimental data of viscosities (η, N s m −2 ) and apparent molar volumes ( V 2 , 10 −6 m 3 /mol) of 0.005, 0.007, 0.009, and 0.0011 g/mL aqueous samples of the dispersants at 304.15 K. The limiting data were fitted to standard activation energy equations and were analyzed to assess potential of their micromixing. Densities (ρ/10 3 kg m −3 ) for apparent molar volume (V 2 /10 −6 m 3 mol −1 ) and viscosity (η, 0.1 N , s m −2 = 0.1 kg m −1 s −1 , = 1 poise, SI unit) were also measured with weight method. The Δμ* 2 < 0, in arrange of −48.35 to −118.03 kJ/mol were noted that inferred effective micromixing evidenced with SEM images of the blends. The Δμ* 2 , kJ mol −1 data are as glycerol (−118.03) > TMSOI (−117.55) > DTAB (−102.93) > orcinol (−101.54) > MFP‐R (−93.71) > iodine (−59.32) > L ‐proline (−59.27) > L‐ lysine (−55.87) > D L ‐alanine (−55.04) > L ‐tyrosine (−53.04) > water (−48.35) orders with maximum utilization of Δμ* 2 , glycerol. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010