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Title: Surface-functionalized polyolefin fibers and their use in methods for extracting metal ions from liquid solutions

Abstract

A fiber useful in the absorption of metal ions from aqueous solutions, the fiber comprising a polyolefin backbone having a diameter of at least 1 micron and having covalently appended on its surface halogen atoms and vinyl-addition polymeric grafts functionalized with metal-binding groups, such as at least one functional group selected from carboxylate, keto, aldo, amino, imino, nitrile, amido, oxime, amidoxime, imide dioxime, and hydroxamate groups. The vinyl-addition polymeric grafts may also be further functionalized with hydrophilic groups different from the metal-binding groups, wherein the hydrophilic groups may be selected from carboxylate, sulfone, sulfonate, phosphonate, alkylammonium, iminium, amide, pyrrolidone, and polyalkyleneglycol groups. Also described are methods for producing the functionalized fibers, and methods for using the functionalized fiber, particularly in extracting metal ions from metal-containing solutions.

Inventors:
; ;
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1576363
Patent Number(s):
10,391,472
Application Number:
15/154,437
Assignee:
UT-Battelle, LLC (Oak Ridge, TN); University of Tennessee Research Foundation (Knoxville, TN)
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Resource Relation:
Patent File Date: 2016 May 13
Country of Publication:
United States
Language:
English

Citation Formats

Dai, Sheng, Brown, Suree, and Saito, Tomonori. Surface-functionalized polyolefin fibers and their use in methods for extracting metal ions from liquid solutions. United States: N. p., 2019. Web.
Dai, Sheng, Brown, Suree, & Saito, Tomonori. Surface-functionalized polyolefin fibers and their use in methods for extracting metal ions from liquid solutions. United States.
Dai, Sheng, Brown, Suree, and Saito, Tomonori. Tue . "Surface-functionalized polyolefin fibers and their use in methods for extracting metal ions from liquid solutions". United States. https://www.osti.gov/servlets/purl/1576363.
@article{osti_1576363,
title = {Surface-functionalized polyolefin fibers and their use in methods for extracting metal ions from liquid solutions},
author = {Dai, Sheng and Brown, Suree and Saito, Tomonori},
abstractNote = {A fiber useful in the absorption of metal ions from aqueous solutions, the fiber comprising a polyolefin backbone having a diameter of at least 1 micron and having covalently appended on its surface halogen atoms and vinyl-addition polymeric grafts functionalized with metal-binding groups, such as at least one functional group selected from carboxylate, keto, aldo, amino, imino, nitrile, amido, oxime, amidoxime, imide dioxime, and hydroxamate groups. The vinyl-addition polymeric grafts may also be further functionalized with hydrophilic groups different from the metal-binding groups, wherein the hydrophilic groups may be selected from carboxylate, sulfone, sulfonate, phosphonate, alkylammonium, iminium, amide, pyrrolidone, and polyalkyleneglycol groups. Also described are methods for producing the functionalized fibers, and methods for using the functionalized fiber, particularly in extracting metal ions from metal-containing solutions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {8}
}

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