Photoswitches are light responsive molecules capable of undergoing reversible conformational isomerizations. These molecules have been widely used in fields such as pharmacology, material science, smart devices, biology, physics, and nanotechnology. Photoswitching molecules tend to be characterized in solution state, however, solution chemistry loses mechanical information related to the light triggered chemical motion. Efforts to study these mechanical properties have been done by synthesizing pure crystals of these photoswitches. Unfortunately, the synthesis of some of these photoswitches is not trivial and the crystallization depends heavily in te relative population of the photoswitches which makes the crystallization even more difficult than for non- light responsive molecules. In this study, we aim to introduce photoswitches into liquid crystal elastomer polymer matrixes to study the mechanical properties related with the chemical motion of the switches. To do this, we will introduce our molecules via Diels-Alder click chemistry which is a powerful and widely used chemical reaction that involves the cycloaddition of a diene and a dienophile, forming a six-membered ring, and is often employed in the synthesis of complex molecules, materials, and bioconjugation applications. Eight photo-responsive molecules will be synthesized bearing a maleimide moiety that will be clicked to the polymer network bearing a furan aromatic ring. This study is the first one to be able to introduce, study, characterize and compare photoswitches to collect information for their future rational applications.
Egor Novikov
Project Year
Major
Chemistry
University
New Mexico Highlands University
Faculty Sponsor(s):
Javier Read de Alaniz
Departments:
Chemistry and Biochemistry
Mentor(s):
Guillen Campos