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Bicontinuous Cubic Lyotropic Liquid Crystal Monomers : = Platform Modifications and Design of New Functional Motifs.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Bicontinuous Cubic Lyotropic Liquid Crystal Monomers :/
其他題名:	Platform Modifications and Design of New Functional Motifs.
作者:	Li, Patrick.
面頁冊數:	1 online resource (194 pages)
附註:	Source: Dissertations Abstracts International, Volume: 84-03, Section: B.
Contained By:	Dissertations Abstracts International84-03B.
標題:	Chemistry. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29166665click for full text (PQDT)
ISBN:	9798845407535

Bicontinuous Cubic Lyotropic Liquid Crystal Monomers : = Platform Modifications and Design of New Functional Motifs.
Li, Patrick.

Bicontinuous Cubic Lyotropic Liquid Crystal Monomers :Platform Modifications and Design of New Functional Motifs. - 1 online resource (194 pages)

Source: Dissertations Abstracts International, Volume: 84-03, Section: B.

Thesis (Ph.D.)--University of Colorado at Boulder, 2022.

Includes bibliographical references

The bicontinuous cubic (Q) lyotropic liquid crystal (LLC) phase is highly desired for molecular separation and uptake applications due to its periodic, uniform-size, 3D-interconnected nanopores. In this thesis, the perturbation, formation, and application of the Q phase and Q-phase-forming LLC monomers was explored. At start of this thesis work, only five intrinsically cross-linkable monomer platforms were known in the literature. The first study in this thesis describes the effect of structural modification on the Q-phase window of one of these already established Q-phase monomers that was previously designed by our group. Seven homologs of this monomer were synthesized, and four of these seven homologs were found to form stable, cross-linked Q-phase networks. However, only one homolog exhibited an improved Q-phase window compared to parent monomer. Due to the limited success of this homolog study, we were encouraged to design the sixth intrinsically cross-linkable Q-phase-forming LLC monomer. This monomer is based on a simple and novel amphiphile structural motif that does not require difficult synthetic strategies compared to previous intrinsically cross-linkable Q-phase platforms. Cross-linked Q-phase networks of this novel monomer exhibited excellent temperature and solvent stability. Finally, the first example of a Q-phase network with functional properties beyond molecular size/charge discrimination is described. This functionalized Q-phase polymer network was formed using a spiropyran-containing dopant monomer that that was designed to blend and cross-link with an established Q-phase-forming LLC monomer, yielding a Q-phase polymer material that retains its phase architecture and reversibly responds to changes in external aqueous solution and vapor pH. Preliminary studies also suggested that this spiropyran-containing Q-phase network material can act as a potential colorimetric sorbent or gated-response material for irreversibly binding aq. Pb2+ ions when triggered with UV light.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798845407535Subjects--Topical Terms:

516420
Chemistry.
Subjects--Index Terms:

Bicontinuous cubicIndex Terms--Genre/Form:

542853
Electronic books.

Bicontinuous Cubic Lyotropic Liquid Crystal Monomers : = Platform Modifications and Design of New Functional Motifs.
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520 $a The bicontinuous cubic (Q) lyotropic liquid crystal (LLC) phase is highly desired for molecular separation and uptake applications due to its periodic, uniform-size, 3D-interconnected nanopores. In this thesis, the perturbation, formation, and application of the Q phase and Q-phase-forming LLC monomers was explored. At start of this thesis work, only five intrinsically cross-linkable monomer platforms were known in the literature. The first study in this thesis describes the effect of structural modification on the Q-phase window of one of these already established Q-phase monomers that was previously designed by our group. Seven homologs of this monomer were synthesized, and four of these seven homologs were found to form stable, cross-linked Q-phase networks. However, only one homolog exhibited an improved Q-phase window compared to parent monomer. Due to the limited success of this homolog study, we were encouraged to design the sixth intrinsically cross-linkable Q-phase-forming LLC monomer. This monomer is based on a simple and novel amphiphile structural motif that does not require difficult synthetic strategies compared to previous intrinsically cross-linkable Q-phase platforms. Cross-linked Q-phase networks of this novel monomer exhibited excellent temperature and solvent stability. Finally, the first example of a Q-phase network with functional properties beyond molecular size/charge discrimination is described. This functionalized Q-phase polymer network was formed using a spiropyran-containing dopant monomer that that was designed to blend and cross-link with an established Q-phase-forming LLC monomer, yielding a Q-phase polymer material that retains its phase architecture and reversibly responds to changes in external aqueous solution and vapor pH. Preliminary studies also suggested that this spiropyran-containing Q-phase network material can act as a potential colorimetric sorbent or gated-response material for irreversibly binding aq. Pb2+ ions when triggered with UV light.
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