Next Article in Journal
Poly Lactic-co-Glycolic Acid (PLGA) as Biodegradable Controlled Drug Delivery Carrier
Next Article in Special Issue
Consolidation of Inorganic Precipitated Silica Gel
Previous Article in Journal
Nanocomposites Based on Metal and Metal Sulfide Clusters Embedded in Polystyrene
Previous Article in Special Issue
Microspheres Containing Cibacron Blue F3G-A and Incorporated Iron Oxide Nanoparticles as Biomarker Harvesting Platforms
Polymers 2011, 3(3), 1363-1376; doi:10.3390/polym3031363
Article

Influence of the Hydrophobicity of Polyelectrolytes on Polyelectrolyte Complex Formation and Complex Particle Structure and Shape

, * ,
,
 and
Received: 5 July 2011; in revised form: 12 August 2011 / Accepted: 22 August 2011 / Published: 25 August 2011
(This article belongs to the Special Issue Polymer Nanogels and Microgels)
View Full-Text   |   Download PDF [634 KB, uploaded 25 August 2011]   |   Browse Figures
Abstract: Polyelectrolyte complexes (PECs) were prepared by structural uniform and strongly charged cationic and anionic modified alternating maleic anhydride copolymers. The hydrophobicity of the polyelectrolytes was changed by the comonomers (ethylene, isobutylene and styrene). Additionally, the n/n+ ratio of the molar charges of the polyelectrolytes and the procedure of formation were varied. The colloidal stability of the systems and the size, shape, and structure of the PEC particles were investigated by turbidimetry, dynamic light scattering (DLS) and atomic force microscopy (AFM). Dynamic light scattering indicates that beside large PEC particle aggregates distinct smaller particles were formed by the copolymers which have the highest hydrophobicity (styrene). These findings could be proved by AFM. Fractal dimension (D), root mean square (RMS) roughness and the surface profiles of the PEC particles adsorbed on mica allow the following conclusions: the higher the hydrophobicity of the polyelectrolytes, the broader is the particle size distribution and the minor is the swelling of the PEC particles. Hence, the most compact particles are formed with the very hydrophobic copolymer.
Keywords: hydrophobicity; polyelectrolyte complex; dynamic light scattering; atomic force microscopy hydrophobicity; polyelectrolyte complex; dynamic light scattering; atomic force microscopy
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Mende, M.; Schwarz, S.; Zschoche, S.; Petzold, G.; Janke, A. Influence of the Hydrophobicity of Polyelectrolytes on Polyelectrolyte Complex Formation and Complex Particle Structure and Shape. Polymers 2011, 3, 1363-1376.

AMA Style

Mende M, Schwarz S, Zschoche S, Petzold G, Janke A. Influence of the Hydrophobicity of Polyelectrolytes on Polyelectrolyte Complex Formation and Complex Particle Structure and Shape. Polymers. 2011; 3(3):1363-1376.

Chicago/Turabian Style

Mende, Mandy; Schwarz, Simona; Zschoche, Stefan; Petzold, Gudrun; Janke, Andreas. 2011. "Influence of the Hydrophobicity of Polyelectrolytes on Polyelectrolyte Complex Formation and Complex Particle Structure and Shape." Polymers 3, no. 3: 1363-1376.


Polymers EISSN 2073-4360 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert