Phase behavior of cationic hydroxyethyl cellulose-sodium dodecyl sulfate mixtures: effects of molecular weight and ethylene oxide side chain length of polymers

Langmuir : the ACS Journal of Surfaces and Colloids
Shuiqin ZhouLowell Kreeger

Abstract

Novel cationic hydroxyethyl cellulose (HEC) polymers with different molecular weights (1.1 x 10(5) to 1.7 x 10(6) g/mol) and ethylene oxide (EO) side chain lengths (1.5-2.9 EO units) were mixed with sodium dodecyl sulfate (SDS) in aqueous solutions. The phase diagrams of cationic HEC-SDS complexes were determined in the dilute polymer concentration regime (< 0.5 wt %) with gradual addition of SDS molecules. The viscosity and structures of the complexes during the phase evolution were studied using rheometry and dynamic light scattering. The gradual addition of SDS first induced interchain associations with the bound SDS aggregates serving as cross-linkers to form an open network structure, producing a very broad size distribution and high viscosities of the complex solutions, and then condensed the network and induced a structure reorganization, resulting in globular aggregates with narrow size distributions. The growth of these globular aggregates in size eventually led to macroscopic sedimentation near charge neutralization. Further addition of SDS randomly broke the sedimentary aggregates into small particles and SDS micelles with low solution viscosities. The effects of molecular weight and EO side chain length of polymers ...Continue Reading

Citations

Aug 10, 2007·The European Physical Journal. E, Soft Matter·S TrabelsiD Langevin
Dec 3, 2014·Advances in Colloid and Interface Science·Andrei BureikoVictor Starov
Oct 22, 2008·Advances in Colloid and Interface Science·Dominique Langevin
Jun 2, 2009·Advances in Colloid and Interface Science·Bo NyströmJosé García de la Torre
Aug 25, 2015·The Journal of Chemical Physics·Ingo HoffmannMichael Gradzielski
Jan 3, 2015·Langmuir : the ACS Journal of Surfaces and Colloids·Nishad DhopatkarAli Dhinojwala
Mar 5, 2016·Journal of Biomedical Materials Research. Part a·Gesmi MilcovichFioretta Asaro
Feb 20, 2010·Advances in Colloid and Interface Science·C D BainR von Klitzing
May 29, 2018·Soft Matter·Alexander L KwiatkowskiOlga E Philippova
May 22, 2008·The Journal of Physical Chemistry. B·Joseph O Carnali, Pravin Shah
Aug 25, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Siwar TrabelsiDominique Langevin
May 3, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Marianna Yanez ArtetaTommy Nylander
Jul 3, 2020·Langmuir : the ACS Journal of Surfaces and Colloids·Joseph RosenfeldDaeyeon Lee

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Langmuir : the ACS Journal of Surfaces and Colloids
Jungno Lee, Yoshikiyo Moroi
Langmuir : the ACS Journal of Surfaces and Colloids
Yakov LapitskyEric W Kaler
Advances in Colloid and Interface Science
Lennart PiculellWatson Loh
© 2021 Meta ULC. All rights reserved