Detection of polymer compatibility by means of self-organization: poly(ethylene oxide) and poly(sodium 4-styrenesulfonate)

Soft Matter ◽  
2021 ◽  
Author(s):  
Maria Bercea ◽  
Bernhard A. Wolf
Keyword(s):  
Ethylene Oxide ◽  
Molecular Level ◽  
Self Organization ◽  
Poly Ethylene Oxide ◽  
Polymer Compatibility ◽  
Poly Ethylene

Information on the miscibility of different polymers A and B on a molecular level is important in many ways. However, along the traditional lines this knowledge is difficult and time...

Soluble High-Molecular-Mass Poly(ethylene oxide)s via Self-Organization†

2003 ◽  
Vol 36 (26) ◽  
pp. 9943-9949 ◽  
Author(s):  
Stefan Schmatloch ◽  
Antje M. J. van den Berg ◽  
Alexander S. Alexeev ◽  
Harald Hofmeier ◽  
Ulrich S. Schubert
Keyword(s):  
Ethylene Oxide ◽  
Molecular Mass ◽  
High Molecular Mass ◽  
Self Organization ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

Self-Organization of Poly(ethylene oxide) on the Surface of Aqueous Salt Solutions

2014 ◽  
Vol 36 (2) ◽  
pp. 211-218 ◽  
Author(s):  
Christian Fuchs ◽  
Hazrat Hussain ◽  
Elkin Amado ◽  
Karsten Busse ◽  
Joerg Kressler
Keyword(s):  
Ethylene Oxide ◽  
Self Organization ◽  
Salt Solutions ◽  
Aqueous Salt Solutions ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

Self-Organization and Vesicle Formation of Amphiphilic Fulleromonodendrons Bearing Oligo(poly(ethylene oxide)) Chains

Langmuir ◽  
2016 ◽  
Vol 32 (10) ◽  
pp. 2338-2347 ◽  
Author(s):  
Mengjun Chen ◽  
Hongxia Zhu ◽  
Shengju Zhou ◽  
Wenlong Xu ◽  
Shuli Dong ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Self Organization ◽  
Vesicle Formation ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

The Structure of Radiation Cross-Linked Poly (ethylene oxide) Gels

1971 ◽  
Vol 29 ◽  
pp. 76-77
Author(s):  
C. E. Cluthe ◽  
G. G. Cocks
Keyword(s):  
Molecular Weight ◽  
Ethylene Oxide ◽  
Parallel Plate ◽  
Average Molecular Weight ◽  
Radical Reaction ◽  
Free Radical Reaction ◽  
Nitrogen Gas ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
Initial Viscosity

Aqueous solutions of a 1 weight-per cent poly (ethylene oxide) (PEO) were degassed under vacuum, transferred to a parallel plate viscometer under a nitrogen gas blanket, and exposed to Co60 gamma radiation. The Co60 source was rated at 4000 curies, and the dose ratewas 3.8x105 rads/hr. The poly (ethylene oxide) employed in the irradiations had an initial viscosity average molecular weight of 2.1 x 106.The solutions were gelled by a free radical reaction with dosages ranging from 5x104 rads to 4.8x106 rads.

Preparation of Organized Mesoporous Silica from Sodium Metasilicate Solutions in Alkaline Medium Using Nonionic Surfactants

2003 ◽  
Vol 68 (10) ◽  
pp. 2019-2031 ◽  
Author(s):  
Markéta Zukalová ◽  
Jiří Rathouský ◽  
Arnošt Zukal
Keyword(s):  
Mesoporous Silica ◽  
Ethylene Oxide ◽  
Sodium Metasilicate ◽  
Spherical Particles ◽  
Structure Directing Agent ◽  
Inorganic Species ◽  
Poly Ethylene Oxide ◽  
Acidic Conditions ◽  
Poly Ethylene ◽  
Hydrolysis Of

A new procedure has been developed, which is based on homogeneous precipitation of organized mesoporous silica from an aqueous solution of sodium metasilicate and a nonionic poly(ethylene oxide) surfactant serving as a structure-directing agent. The decrease in pH, which induces the polycondensation of silica, is achieved by hydrolysis of ethyl acetate. Owing to the complexation of Na+ cations by poly(ethylene oxide) segments, assembling of the mesostructure appears to occur under electrostatic control by the S0Na+I- pathway, where S0 and I- are surfactant and inorganic species, respectively. As the complexation of Na+ cations causes extended conformation of poly(ethylene oxide) segments, the pore size and pore volume of organized mesoporous silica increase in comparison with materials prepared under neutral or acidic conditions. The assembling of particles can be fully separated from their solidification, which results in the formation of highly regular spherical particles of mesoporous silica.

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