Design, synthesis, and characterization of photoresponsive materials usingcoordination bonds and other supramolecular interactions

Design, synthesis, and characterization of photoresponsive materials usingcoordination bonds and other supramolecular interactions

Bibliographic Details
Main Author: Razgoniaev, Anton
Language:English
Published: Bowling Green State University / OhioLINK 2017
Subjects:
Chemistry
Polymer Chemistry
Polymers
Materials Science
Photochemistry
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1510918007338796
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spelling ndltd-OhioLink-oai-etd.ohiolink.edu-bgsu15109180073387962021-08-03T07:04:34Z Design, synthesis, and characterization of photoresponsive materials usingcoordination bonds and other supramolecular interactions Razgoniaev, Anton Chemistry Polymer Chemistry Polymers Materials Science Photochemistry Chemistry Materials Science Polymer Chemistry Polymers When designing light-responsive, healable materials and adhesives, these materials need to include controllable reversible, bonding interactions. Such dynamic interactions are difficult to control, however. In this work, we present how these interactions can be controlled by incorporating photoactive metal ions into supramolecular polymer network what allow the tuning of optical and mechanical properties of the polymers with light.Utilizing this approach, we created a series of supramolecular polymer melts and studied their mechanical and photo physical properties. We have shown that the photochemistry and photophysical properties of the metal center can be used to control the mechanical properties of the materials, and introduce new optical and mechanical properties not seen in the traditional covalent polymers. In particular, photo-induced metal-ligand bond labilization led to partial depolymerization of the supramolecular assembly, and softening of the materials. When the light stimulus was removed, the material recovered the initial stiffness back. We also investigated structure-property relationships in such systems where mechanical properties of the supramolecular polymers are controlled by coordination environment around metal cross-linking center.We also considered how polymer host matrix impacts on the photophysical and photochemical properties of chromophores that undergo molecular motion in the exited state. In particular, change in excited state dynamics of [Cu(dmp)2]+ can be used to sense viscosity of various polymers. A linear dependence of excited state lifetime and emission wavelength on viscosity was correlated with restricted photoinduced structural distortion of Cu(I) complex in more flow-resistance media. 2017-12-01 English text Bowling Green State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1510918007338796 http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1510918007338796 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection NDLTD
language English
sources NDLTD
topic Chemistry
Polymer Chemistry
Polymers
Materials Science
Photochemistry
Chemistry
Materials Science
Polymer Chemistry
Polymers
spellingShingle Chemistry
Polymer Chemistry
Polymers
Materials Science
Photochemistry
Chemistry
Materials Science
Polymer Chemistry
Polymers
Razgoniaev, Anton
Design, synthesis, and characterization of photoresponsive materials usingcoordination bonds and other supramolecular interactions
author Razgoniaev, Anton
author_facet Razgoniaev, Anton
author_sort Razgoniaev, Anton
title Design, synthesis, and characterization of photoresponsive materials usingcoordination bonds and other supramolecular interactions
title_short Design, synthesis, and characterization of photoresponsive materials usingcoordination bonds and other supramolecular interactions
title_full Design, synthesis, and characterization of photoresponsive materials usingcoordination bonds and other supramolecular interactions
title_fullStr Design, synthesis, and characterization of photoresponsive materials usingcoordination bonds and other supramolecular interactions
title_full_unstemmed Design, synthesis, and characterization of photoresponsive materials usingcoordination bonds and other supramolecular interactions
title_sort design, synthesis, and characterization of photoresponsive materials usingcoordination bonds and other supramolecular interactions
publisher Bowling Green State University / OhioLINK
publishDate 2017
url http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1510918007338796
work_keys_str_mv AT razgoniaevanton designsynthesisandcharacterizationofphotoresponsivematerialsusingcoordinationbondsandothersupramolecularinteractions
_version_ 1719453015710105600

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