Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Guest polyelectrolyte

Holappa S, Kantonen L, Andersson T, Winnik F, Tenhu H (2005) Overcharging of polyelectrolyte complexes by the guest polyelectrolyte studied by fluorescence spectroscopy. Langmuir 21 11431-11438. doi 10.1021 fla051866r... [Pg.87]

However, when polyanions and polycations are mixed in nonstoichiometric ratios, soluble complexes can be formed. These polyelectrolyte complexes are found in the form of discrete soluble gel particles in the aqueous medium. For nonstoichiometric polyelectrolyte complexes the major component can also be described as host polyelectrolyte (HPE), whereas the oppositely charged minor component can be described as guest polyelectrolyte (GPE). The latter joins the repeat units of the HPE via electrostatic interactions, so that a network is formed. Eor the formation of soluble particles, it is beneficial if the HPE consists of high molecular weight material, whereas the GPE has a low molecular weight. Eurthermore, it is beneficial for a stable PEC if at least one of the polyelectrolytes has weak ionic groups. [Pg.115]

Other examples of organized molecular assemblies of interest for photocatalysis are (1) PC-A, PC-D or D-PC-A molecules where PC, A and D fragments are separated by rigid bridges (2) host-guest complexes (3) micelles and microemulsions (4) surfactant monolayers or bilayers attached to solid surfaces, and (5) polyelectrolytes [19]. [Pg.42]

Batchelor EK, Gadde S, Kaifer AE (2010) Host-guest control on the formation of pinacyanol chloride H-aggregates in anionic polyelectrolyte solutions. Supramol Chem 22 40-45... [Pg.187]

Tan C, Pinto MR, Kose ME, Ghiviriga I, Schanze KS (2004) Solvent-induced self-assembly of a meta-linked conjugated polyelectrolyte. Helix formation, guest intercalation, and amplified quenching. Adv Mater 16 1208-1212... [Pg.383]

The hyperbranched poly( acrylic acid) graft films -C02H-rich interface on polyethylene can be modified by noncovalent methods just like CO2H-rich interfaces of PAA/Au grafts. This was shown by treating deprotonated 3-PAA/PE films with cationic polyelectrolytes like poly-D-lysine, and amine terminated PAMAM dendrimers at pH 7 [31]. Equation 10 illustrates the entrapment of PAMAM dendrimers in a 3-poly(sodium acrylate)/PE film. In these cases, polyvalent entrapment of the cationic electrolyte was evidenced in the ATR-IR spectriun by the appearance of amide C = O and N - H peaks of the guest dendrimer that were not present in the host 3-poly(sodium acrylate)/PE film. [Pg.22]

Wang ZP, Feng ZQ, Gao CY (2008) Stepwise assembly of the same polyelectrolytes using host-guest interaction to obtain microcapsules with multiresponsive properties. Chem Mater 20 4194-4199... [Pg.154]

See other pages where Guest polyelectrolyte is mentioned: [Pg.132]    [Pg.250]    [Pg.174]    [Pg.179]    [Pg.358]    [Pg.132]    [Pg.250]    [Pg.174]    [Pg.179]    [Pg.358]    [Pg.226]    [Pg.89]    [Pg.52]    [Pg.498]    [Pg.193]    [Pg.136]    [Pg.117]    [Pg.65]    [Pg.464]    [Pg.881]    [Pg.746]    [Pg.747]    [Pg.703]    [Pg.464]    [Pg.39]    [Pg.71]    [Pg.72]    [Pg.73]    [Pg.732]    [Pg.305]    [Pg.306]    [Pg.228]    [Pg.90]    [Pg.32]    [Pg.217]    [Pg.6065]    [Pg.68]    [Pg.284]    [Pg.299]    [Pg.120]    [Pg.237]    [Pg.506]    [Pg.520]    [Pg.166]    [Pg.28]    [Pg.356]    [Pg.153]   
See also in sourсe #XX -- [ Pg.17 , Pg.227 ]



SEARCH



© 2024 chempedia.info