Multilayering of a pseudo polyelectrolyte (PVPh) with a strong polyelectrolyte (PDMAC) from aqueous media

Thermal and Spectral Analysis of Novel Amide-Tethered Polymers from Poly(allylamine)

“…This was done for several reasons: (1) having a substituent on the ortho carbon of the aromatic ring would provide information on the steric restraints of this reaction; (2) drugbound polymers have been reported as slow release formulations, which employ the natural secretases and proteases of the body for cleavage of the drug-polymer bond and thus release of the active agent [49,50] ; and (3) the acetyl group could be selectively cleaved to form its corresponding phenol and thus a new pseudo-polyelectrolyte. [39,40] Briefly, the desired acid NHS and DCC were stirred in CHCl 3 for 3 h (Scheme 1). [42] One equivalent of PAH-H in EtOH solution was then added to the stirring solution, resulting almost immediately in a precipitate; however, the solution was continually stirred for an additional 3 h to ensure complete reaction.…”

“…In a typical approach, a surface is alternately introduced to two oppositely charged polymer solutions in a repetitive fashion until the desired number of layers has been obtained. [36] The polyanions and polycations used may be strong, [37] weak, [37] or pseudo (also referred to as very weak) polyelectrolytes, [38][39][40] although no pseudo-polycations have yet been reported. Most studies in this arena have focussed on homopolymers.…”