Open AccessNovel CO{sub 2}-thickeners for improved mobility control
Author(s) -
Robert M. Enick,
Eric J. Beckman,
A. Hamilton
Publication year - 2000
Publication title -
osti oai (u.s. department of energy office of scientific and technical information)
Language(s) - English
Resource type - Reports
DOI - 10.2172/750873
Subject(s) - polymer , viscosity , carbon dioxide , alkyl , chemistry , macromolecule , chemical engineering , ionic bonding , polymer chemistry , organic chemistry , materials science , ion , biochemistry , engineering , composite material
The objective of this study was to incorporate carbon dioxide-philic functionalities into the structure of a telechelic ionomers in an attempt to design a carbon dioxide-thickener. Alkyl analogs of these end-functionalized polymers have been successfully employed in dilute concentration to increase the viscosity of organic liquids or to induce gelation. The ionic end-groups associated in solution, establishing a viscosity enhancing macromolecular structure. More dramatic viscosity changes have been attained at very dilute concentrations with low MW associating compounds than with ultra-high MW polymers. The apparent molecular weight of the associative network greatly exceeds the MW of the covalently-bounded polymer in solution, yet the relatively low molecular weight of the compound favors its solubilization
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