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Integral-type polycation

Poly(sodium styrenesulfonate) Integral-type polycations 86-88... [Pg.17]

Poly(sodium vinylsulfonate) Integral-type polycations 96... [Pg.17]

On the other hand, when integral-type polycations (having cationic charges on the backbone chain) instead of pendant-type polycations, are used as strong polybases, different phenomena are observed. Tsuchida et al.m) discussed the interactions between NaSS and a series of integral-type polycations, called ionenes ... [Pg.22]

Fig. 4a, b. Effect of the structure of the polycation component on the yield of polyelectrolyte complexes, (a) Pendant-type polycation (QPVP)-NaSS (b) Integral-type polycation (3 X)-NaSS ... [Pg.23]

Figure 12 shows the effect of ionic strength on viscosity (a) and transmittance (b) of the mixed aqueous solution of PMAA and integral-type polycation, 2X. In contrast to the NaSS-2X complex, the PMAA (a > 0.5)-2X... [Pg.33]

The results of the substitution reaction of the integral-type polycation (2X)-PEO-PMAA system are shown in Fig. 44. The PEO-PMAA complex and the 2X-PMAA complex are preferably formed in the low or high pH region, respectively, whereas in the intermediate pH region the 2X-PEO-PMAA ternary complex is formed, but the yield of its precipitate is very low. Thus, in the 2X-PEO-PMAA system, a substitution reaction takes place due to the process described by Eq. (68). The decrease in the yield of the precipitate of the ternary complex is well explained by the following scheme ... [Pg.90]

Fig. 44. Transmittance as a function of pH of substitution reactions in the integral-type polycation (2 X)-poly-(methycrylic add) (PMAA)-poly-(ethylene oxide) (PEO) system... Fig. 44. Transmittance as a function of pH of substitution reactions in the integral-type polycation (2 X)-poly-(methycrylic add) (PMAA)-poly-(ethylene oxide) (PEO) system...
Fig. 45 a, b. Time dependence of the aggregation process of the polyelectrolyte complex composed of integral-type polycation (2X)-poly(methacrylic add) (PMAA) (x 125). (a) 4 days, (b) 7 days, (c) 14 days after mixing... [Pg.94]

Fig. 46a, b. Time dependence of the complexation. (a) conformational changes of the polymer components in the complexes Poly(L-glutamic acid) (PGA)-tetraethylenepentamine, O PGA-pentaethylenehexamine (b) pH change of the complex solutions Poly(acrylic acid) (PAA)-integral-type polycation (10,10-ionene) O PAA-poly(N-vinyl-2-pyrrolidone) (PVPo)... [Pg.95]

Fig. 50 a, b. Higher-order structure of aggregates of a polyelectrolyte complex of poly(methacry-lic acid) (PMAA) and integral-type polycation (2X), (a) Optical micrograph, (b) polarized light micrograph... [Pg.98]

P4VP = poly(4-vinylpyridine), PSS = poly(styrenesulfonic acid), PLL = poly(L-lysine), PMAA = poly(methacrylic acid), PGA = poly(L-glutamic acid), PVBMA = poly(4-vinylbenzyItrimethyl-ammonium chloride), 2X, 3X and 6X = integral-type polycations (see text)... [Pg.99]

FIGURE 56.4 Schematic representation of the equilibrium for the phase changes of the PMAA-integral type polycation complex. (With kind permission from Springer Science+Business Media Adv. Polym. Sci., Interactions between macromolecules in solution and intermacromolecular complexes, 45,1982,1, Tsuchida, E. [Pg.1339]

Fig. 5 SEM images of the PEC system consisting of an integral type polycation and polymethycrylic acid. (From [38] with kind permission of ACS)... Fig. 5 SEM images of the PEC system consisting of an integral type polycation and polymethycrylic acid. (From [38] with kind permission of ACS)...
See other pages where Integral-type polycation is mentioned: [Pg.17]    [Pg.23]    [Pg.24]    [Pg.24]    [Pg.27]    [Pg.29]    [Pg.38]    [Pg.93]    [Pg.95]    [Pg.96]    [Pg.754]    [Pg.202]   
See also in sourсe #XX -- [ Pg.22 ]



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