Competition of hydrogen-bonding and electrostatic interactions within hybrid polymer multilayers. Academic Article

abstract

• Using a layer-by-layer sequential adsorption technique, we report the construction of hybrid films in which layers of hydrogen-bonded polymers are embedded within electrostatically associated polyelectrolytes. The components of the hybrid film include a neutral hydrogen-bonding polymer, a weak polycarboxylic acid, and a strong polycation. Depending on the pH value used for the deposition of the electrostatic film, we found two distinctive regimes of film growth. At pHs lower than a critical value, deposition of electrostatic layers occurred on top of hydrogen-bonded stacks to produce hybrid, three-component films. At pHs higher than a critical value, neutral, hydrogen-bonded chains were displaced by the adsorbing chains of the polycation, producing two-component films. The property of the hydrogen-bonded stacks of hybrid films to be selectively dissolved by exposing them to a high pH makes these films promising candidates for producing free polyelectrolyte films.

authors

• Sukhishvili, Svetlana

published proceedings

• Langmuir

altmetric score

• 3

author list (cited authors)

• Kharlampieva, E., & Sukhishvili, S. A

citation count

• 26

complete list of authors

• Kharlampieva, Eugenia||Sukhishvili, Svetlana A

publication date

• November 2004

publisher

• American Chemical Society (ACS)  Publisher

published in

• Langmuir  Journal

keywords

• Adsorption
• Electrolytes
• Hydrogen Bonding
• Hydrogen-Ion Concentration
• Membranes, Artificial
• Molecular Structure
• Polymers
• Static Electricity
• Time Factors

PubMed Central ID

• 15544406

Digital Object Identifier (DOI)

• 10.1021/la0484321

start page

• 10712

end page

• 10717

volume

• 20

issue

• 24

URL

• http%3A%2F%2Fdx.doi.org%2F10.1021%2Fla0484321