Polymerized ionic liquids by condensation polymerization: Stimuli responsive polyurethane gels and dispersions

<p>Ionic liquids have been used in free radical polymerizations to make polymerized ionic liquid (PIL) materials of various types. PIL gels based on imidazolium cations have been found to exhibit an anion-exchange induced stimuli responsiveness. This thesis explores incorporation of ionic liquids in polyurethane (PU) polymers to make PIL PU gels and dispersions through condensation polymerization. PIL gels are synthesized through a single-pot approach that show stimuli response to solvents. This approach allows one to make these gels rapidly and cheaply on-site. These gels can reversibly porate in different solvents and are found to be porous when analyzed by scanning electron microscope (SEM). PIL based resins are also made in two steps, that show self-dispersion properties in water forming thermodynamically stable nano-scale particles. These materials can be transported as 100% solid resins, where they can be transformed into polyurethane dispersions (PUDs) onsite. These particles also show stimuli responsiveness to different anions and solvents.</p>

Name thesis:degree_name

Master of Science (MS)

Level thesis:degree_level

Open Access Thesis

Discipline thesis:degree_discipline

Engineering Technology

Year dc:date.available

2019

Author dc:creator

• Gupta, Harshit

Contributors dc:contributor

• John Texter, PhD
• Vijay Kumar Mannari, PhD
• Mohamed El-Sayed, PhD

• Contact angle
• Ionic Liquid
• Poly ionic liquid gel
• PUDs
• Self Dispersion
• Stimuli responsive
• Polymer Chemistry

Repository record dc:identifier

https://commons.emich.edu/theses/964

OAI identifier oai:identifier

oai:commons.emich.edu:theses-2339