Complex Formation and Characterization

It is well known that oppositely charged PEL will form complexes over a broad range of stoichiometric ratios. 

PEC nanoparticles, prepared by mixing solutions of the commercial low-cost PEL components PEI and PAC, were described by Miiller et al. [75]. It was found that the size and internal structure of PEI/PAC particles can be regulated by process, media, and structural parameters. The mixing order, mixing ratio, PEL concentration, pH, and molar mass were found to be especially sensitive parameters for regulating the size (diameter) of spherical PEI/PAC nanoparticles, in the range between 80 and 1,000 nm, in a defined way. 

PDADMAC poly(NdV-diallyl-JVdV-dimethyl-ammonium chloride) 

PMADAMBQ copolymer of N-methacryloyloxy-ethyl -A-benzyl-iV,A-dimethyl-ammonium chloride 

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