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Synthesis and characterizations of pyridinium salts including poly(pyridinium salt)s and their applications

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Biomedical Sciences

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University Of Chester (UoC)

Pyridinium salts, both molecular and polymeric, are an interesting class of multifunctional materials that exhibit liquid-crystalline and light-emitting properties. Moreover, their properties can be easily tuned by introducing new types of anions or by modifying their chemical structures. Thi...

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UNLV Theses, Dissertations, Professional Papers, and Capstones

12-1-2012

Synthesis and characterizations of pyridinium salts including
poly(pyridinium salt)s and their applications
Tae Soo Jo
University of Nevada, Las Vegas

Follow this and additional works at: https://digitalscholarship.unlv.edu/thesesdissertations

Part of the Nanoscience and Nanotechnology Commons, and the Polymer Chemistry Commons

Repository Citation
Jo, Tae Soo, "Synthesis and characterizations of pyridinium salts including poly(pyridinium salt)s and their
applications" (2012). UNLV Theses, Dissertations, Professional Papers, and Capstones. 1743.
http://dx.doi.org/10.34917/4332724

This Dissertation is protected by copyright and/or related rights. It has been brought to you by Digital
Scholarship@UNLV with permission from the rights-holder(s). You are free to use this Dissertation in any way that
is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to
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This Dissertation has been accepted for inclusion in UNLV Theses, Dissertations, Professional Papers, and
Capstones by an authorized administrator of Digital Scholarship@UNLV. For more information, please contact
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,SYNTHESIS AND CHARACTERIZATIONS OF PYRIDINIUM SALTS INCLUDING

POLY(PYRIDINIUM SALT)S AND THEIR APPLICATIONS

By

Tae Soo Jo

Bachelor of Chemical Engineering
Kwangwoon University
2004

Master of Chemical Engineering
Yonsei University
2006

A dissertation submitted in partial fulfillment
of the requirements for the

Doctor of Philosophy in Chemistry

Department of Chemistry
College of Sciences
Graduate College

University of Nevada, Las Vegas
December 2012

,THE GRADUATE COLLEGE

We recommend the dissertation prepared under our supervision by

Tae Soo Jo

entitled

Synthesis and Characterizations of Pyridinium Salts Including Poly(Pyridinium Salt)s
and their Applications

be accepted in partial fulfillment of the requirements for the degree of

Doctor of Philosophy in Chemistry
Department of Chemistry

Pradip Bhowmik, Ph.D., Committee Chair

Kathleen Robins, Ph.D., Committee Member

Vernon Hodge, Ph.D., Committee Member

Laxmi Gewali, Ph.D., Graduate College Representative

Tom Piechota, Ph.D., Interim Vice President for Research &
Dean of the Graduate College

December 2012

ii

, ABSTRACT

Synthesis and Characterizations of Pyridinium Salts Including Poly(pyridinium salt)s and

Their Applications

by

Tae Soo Jo

Dr. Pradip K. Bhowmik, Examination Committee Chair
Department of Chemistry
University of Nevada La Vegas

Pyridinium salts, both molecular and polymeric, are an interesting class of

multifunctional materials that exhibit liquid-crystalline and light-emitting properties.

Moreover, their properties can be easily tuned by introducing new types of anions or by

modifying their chemical structures. This dissertation describes synthesis and

characterization of poly(pyridinium salt)s containing macrocounterions and fluorene

moieties in their backbones, synthesis and characterization of nanocomposites of

poly(pyridinium salt)s with single-walled carbon nanotubes via non-covalent interactions,

and synthesis and characterizations of pyridinium salts having different aliphatic linkages

and their application in organic acid sensing.

First, all of these ionic polymers were prepared by either ring-transmutation or by

metathesis reaction. Their chemical structures were established by FTIR, 1H spectroscopy

and elemental analysis. Some polymers containing macrocounterions had relatively low

melting transitions above which they formed thermotropic liquid-crystalline phase; and

other polymers were amorphous as determined by VTXRD studies. Ionic polymers

containing fluorene moieties in their backbones exhibited lyotropic properties in both
iii

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