자료유형  

 학위논문

Control Number  

0015492315

International Standard Book Number  

9781088316405

Dewey Decimal Classification Number  

551

Main Entry-Personal Name  

Alzate-Sanchez, Diego Mauricio.

Publication, Distribution, etc. (Imprint  

[Sl] : Northwestern University, 2019

Publication, Distribution, etc. (Imprint  

Ann Arbor : ProQuest Dissertations & Theses, 2019

Physical Description  

222 p

General Note  

Source: Dissertations Abstracts International, Volume: 81-05, Section: B.

General Note  

Advisor: Dichtel, William.

Dissertation Note  

Thesis (Ph.D.)--Northwestern University, 2019.

Restrictions on Access Note  

This item must not be sold to any third party vendors.

Summary, Etc.  

요약Use of bio-renewable polysaccharides to produce materials with a high technological impact has gained a lot of attention recently. Efforts have been made, for example to produce triboelectric generators from cotton, as well as, nanostructures of chitosan gels for drug delivery. Another well-known example is the use of 棺-Cyclodextrin (棺 -CD) derivatives to remove organic contaminants from water that are present at very low concentrations. In this thesis, we study approaches ranging from adsorption to hydrolysis for the removal of contaminants from the environment. In chapter 1, we review the different methodologies employed to abate contaminants from water and air, focusing on those that make use of bio-renewable resources. In Chapter 2, we demonstrate a facile strategy to produce granular adsorbents by depositing 棺-CD polymers onto cellulose microcrystals. Moreover, the developed adsorbent can remove micropollutants (MPs) in a flow setup, without losing its properties after several cycles of adsorption/desorption. In Chapter 3, we expand the functionalization of the cellulose with the 棺-CD polymer towards cotton fabrics. The modified fabric preserves the mechanical characteristic of a standard cotton fabric, yet it is able to sequester volatile organic compounds (VOCs) from the air. Following the work with fabrics, Chapter 4 presents a rapid and facile strategy to deposit a Metal Organic Framework (MOF) onto cotton fabrics without the use of solvent or specialized equipment. The MOF deposited on the fabric can hydrolyze a nerve agent simulant, demonstrating the applicability of the composite material. In chapter 5, we explore a strategy to produce a completely bio-based crosslinked polymer. Here, we install aldehyde groups in the 棺-CD that can be condensed with the amino groups in chitosan to form a cross-linked network based on imine linkages. The network forms a dynamic hydrogel that is coupled with polyacrylamide to form a double network hydrogel. The double network hydrogel is more flexible and tougher than the individual components, proving the synergistic effect of the combination of the individual hydrogels.

Subject Added Entry-Topical Term  

Organic chemistry

Subject Added Entry-Topical Term  

Materials science

Subject Added Entry-Topical Term  

Geology

Added Entry-Corporate Name  

Northwestern University Chemistry

Host Item Entry  

Dissertations Abstracts International. 81-05B.

Host Item Entry  

Dissertation Abstract International

Electronic Location and Access  

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Control Number  

joongbu:565390