DOI: 10.1006/jcis.2001.8100. The Relationship between Polymer/Substrate Charge Density and Charge Overcompensation by Adsorbed Polyelectrolyte Layers

The Relationship between Polymer/Substrate Charge Density and Charge Overcompensation by Adsorbed Polyelectrolyte Layers

10.1006/jcis.2001.8100

Crossref journal-article

Elsevier BV

Journal of Colloid and Interface Science (78)

Bibliography

Shin, Y., Roberts, J. E., & Santore, M. M. (2002). The Relationship between Polymer/Substrate Charge Density and Charge Overcompensation by Adsorbed Polyelectrolyte Layers. Journal of Colloid and Interface Science, 247(1), 220â230.

Authors 3

Yongwoo Shin (first)
James E. Roberts (additional)
Maria M. Santore (additional)

References 46 Referenced 93

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10.1016/0166-6622(92)80091-F / Colloids Surf. by Popping (1994)
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Shin, Y, Santore, M. M, and, Roberts, J. E, submitted for publication.
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Note: At pH 6 the dominant phosphate ion is H, 2, PO, 4, −, but at pH 8 it is HPO, 4, =. In this work, we are more concerned with counting the charge contained by these ions, rather than the actual numbers or identities of the particular phosphate ions condensing on the DMAEMA. In some situations, this may be an important distinction; however, in the current work it is a minor detail. Further in the titration curves for Fig. 1, the counterions on the DMAEMA were chlorines, as HCl was added at the beginning of each titration to fully protonate the DMAEMA amines.
10.1071/CH9740461 / Aust. J. Chem. by Perram (1974)
10.1039/f19747001807 / J. Chem. Soc. Faraday Trans I by Yates (1974)
While 3.5 protons must be released as a result of additional surface ionization in the vicinity of adsorbed chains, it is also possible that the surface ionizes even more, in a “second process.” For surface ionization grater than 3.5 sites/bound cell, in addition to the released protons, negative counterions must also be released from the polymer. This second process might in principle be detected through conductimetric titrations; however, due to the already large amounts of ions present, it was impossible to detect. The extent to which the second process occurs depends on how interfacial conditions (different dielectric constants one either side of a half-space) affect the Bjerrum length.

Dates

Type	When
Created	22 years, 10 months ago (Oct. 6, 2002, 11:40 a.m.)
Deposited	6 years, 4 months ago (April 11, 2019, 6:25 a.m.)
Indexed	1 year ago (Aug. 6, 2024, 4:18 p.m.)
Issued	23 years, 5 months ago (March 1, 2002)
Published	23 years, 5 months ago (March 1, 2002)
Published Print	23 years, 5 months ago (March 1, 2002)

Funders 0

None

BibTeX

@article{Shin_2002, title={The Relationship between Polymer/Substrate Charge Density and Charge Overcompensation by Adsorbed Polyelectrolyte Layers}, volume={247}, ISSN={0021-9797}, url={http://dx.doi.org/10.1006/jcis.2001.8100}, DOI={10.1006/jcis.2001.8100}, number={1}, journal={Journal of Colloid and Interface Science}, publisher={Elsevier BV}, author={Shin, Yongwoo and Roberts, James E. and Santore, Maria M.}, year={2002}, month=mar, pages={220–230} }

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