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Synthesis of new separating agents for nuclear materials.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Synthesis of new separating agents for nuclear materials./
Author:	Nam, Jaewook.
Description:	1 online resource (134 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 60-06, Section: B.
Contained By:	Dissertations Abstracts International60-06B.
Subject:	Organic chemistry. -
Online resource:	click for full text (PQDT)
ISBN:	9780591962000

Synthesis of new separating agents for nuclear materials.
Nam, Jaewook.

Synthesis of new separating agents for nuclear materials. - 1 online resource (134 pages)

Source: Dissertations Abstracts International, Volume: 60-06, Section: B.

Thesis (Ph.D.)--Texas Tech University, 1998.

Includes bibliographical references

Synthetic methods for the preparation of complexing agents for the separation of radionuclide materials are described in this dissertation. Several series of new bifunctional anion-exchange resins were prepared by reaction of ReillexTM 402 poly(4-vinylpyridine) resin with alkylating agents ω-Br(CH2)nQ+ in Q+ = trimethylammonio, trimethylphosphonio, and pyridinium groups. By variation of the number of methylene groups in the space, the distance between the two anion-exchange sites was systematically varied. The structural variations in these bifunctional anion-exchange resins were made to investigate their Pu(IV) sorption behavior from nitric acid media. Partial substitution of linear poly(vinylpyridine) with hydrophilic groups provided new water-soluble polymers which have potential for use in metal separation using ultrafiltration membranes. For the cesium extraction from acidic nitrate media, several series of macrocyclic polyether compounds which have the oxygenated, aliphatic side arms were prepared. Acylation of dibenzo-18-crown-6 (or dibenzo-21-crown-7) and subsequent reduction provided new carbon atom-linked side armed polyether extractants. Several approaches to the synthesis of oxygen atom-linked side armed polyether extractants were explored with the model compound Sesamol. Although results of the model studies were promising, all attempts to extend the methods to the preparation of crown ethers were unsuccessful.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9780591962000Subjects--Topical Terms:

1148722
Organic chemistry.
Subjects--Index Terms:

Anion exchangeIndex Terms--Genre/Form:

554714
Electronic books.

Synthesis of new separating agents for nuclear materials.
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245 1 0 $a Synthesis of new separating agents for nuclear materials.
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500 $a Source: Dissertations Abstracts International, Volume: 60-06, Section: B.
500 $a Publisher info.: Dissertation/Thesis.
500 $a Advisor: Bartsch, Richard A.
502 $a Thesis (Ph.D.)--Texas Tech University, 1998.
504 $a Includes bibliographical references
520 $a Synthetic methods for the preparation of complexing agents for the separation of radionuclide materials are described in this dissertation. Several series of new bifunctional anion-exchange resins were prepared by reaction of ReillexTM 402 poly(4-vinylpyridine) resin with alkylating agents ω-Br(CH2)nQ+ in Q+ = trimethylammonio, trimethylphosphonio, and pyridinium groups. By variation of the number of methylene groups in the space, the distance between the two anion-exchange sites was systematically varied. The structural variations in these bifunctional anion-exchange resins were made to investigate their Pu(IV) sorption behavior from nitric acid media. Partial substitution of linear poly(vinylpyridine) with hydrophilic groups provided new water-soluble polymers which have potential for use in metal separation using ultrafiltration membranes. For the cesium extraction from acidic nitrate media, several series of macrocyclic polyether compounds which have the oxygenated, aliphatic side arms were prepared. Acylation of dibenzo-18-crown-6 (or dibenzo-21-crown-7) and subsequent reduction provided new carbon atom-linked side armed polyether extractants. Several approaches to the synthesis of oxygen atom-linked side armed polyether extractants were explored with the model compound Sesamol. Although results of the model studies were promising, all attempts to extend the methods to the preparation of crown ethers were unsuccessful.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2024
538 $a Mode of access: World Wide Web
650 4 $a Organic chemistry. $3 1148722
653 $a Anion exchange
653 $a Radionuclides
653 $a Separating agents
653 $a Ultrafiltration
655 7 $a Electronic books. $2 local $3 554714
690 $a 0490
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a Texas Tech University. $3 1194140
773 0 $t Dissertations Abstracts International $g 60-06B.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9841987 $z click for full text (PQDT)