protonate


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protonate

[′prōt·ən‚āt]
(chemistry)
To add protons to a base by a proton source.
References in periodicals archive ?
However, HCI from PVC dehydrochlorination fails to protonate the PANI because the formation process of HCI and the decomposition process of PAM as well as the transfer process of decomposition products to gas phase are not coincident.
Particularly, the present study reports (i) the preparation of Nafion-containing nanoparticles (NAF), (ii) their characterization in terms of size, morphology, and X-ray diffraction, (iii) the test of their cytotoxic activity in vitro on two different human cancer cell lines, namely, erythroleukemic K562 and ovarian cancer A2780 cells, and (iv) the [sup.31]P NMR investigation of the ability of NAF to selectively protonate PTA on nitrogen and of the coordination ability of the NAF/[PTAH.sup.+] system to Pt.
Since at lower pH more protons will be available to protonate amine groups of chitosan molecules [28, 29], then strong electrostatic interaction between the membrane surface and the dye anions results in an increase of dye removal, and increasing the pH causes decreasing the removal efficiency.
In the acidic solution, the reactive -N[H.sub.2] is easy to protonate to the -N[H.sup.3+] form, expecting to contribute to the interaction with the ionic CR dye [29].
This presence of [NH.sup.+.sub.3] is expected as primary amine in chitosan will protonate to form chitosonium acetate ([NH.sup.+-.sub.3] OOCR) groups when dissolved in acetic acid solution.
CSA, which is added to protonate the polyaniline, forms a water soluble amine salt which could reduce the mass of the membranes.
On the other hand concentrated [H.sub.2][SO.sub.4] protonates the HI doped and undoped PANI almost to the same extent.
Under the acidic conditions expected for indoor aerosols of outdoor origin, RdNS protonates. Using cigarette smoke deposited into a Pyrex vessel resulted in a similar partitioning behavior to aerosol of outdoor origin; after one week of residence time in the closed vessel, mass spectral features were comparable to the measured indoor THS factor.