Self-crosslinking film-forming latexes prepared using sunflower oil-based monomer

Ebukolo, Nicholas

Publikace:
Self-crosslinking film-forming latexes prepared using sunflower oil-based monomer

Diplomová práceopen access

dc.contributor.advisor	Machotová, Jana
dc.contributor.author	Ebukolo, Nicholas
dc.date.accepted	2024-06-05
dc.date.accessioned	2024-07-08T13:49:15Z
dc.date.available	2024-07-08T13:49:15Z
dc.date.issued	2024
dc.date.submitted	2024-05-10
dc.description.abstract	The bio-based monomer, specifically acrylated methyl ester derived from sunflower oil, was incorporated to formulate polymer latexes for coating applications. The content of the bio-based monomer building units in the copolymer chain structure ranged from 5 to 30 wt. %. The emulsion polymerization of these bio-based monomers showed successful results, characterized by low coagulum levels (below 3%) and high monomer conversion rates (around 95%). The integration of the bio-based derivatives into the polymer latexes was confirmed by infrared spectroscopy. In addition, asymmetric flow fractionation coupled with multi-angle light scattering was used to analyze the molar mass distribution of the synthesized copolymers. The effectiveness of both anionic non-polymerizable and polymerizable emulsifiers was evaluated to determine the stability of the prepared latexes under elevated temperature conditions and their water resistance.	eng
dc.description.defence	The graduate presented his thesis to the committee. He also responded to the comments of his opponent. He answered the questions of the committee members: What is the chemical structure of your bio-based polymer? Can you comment the link between increasing cross-linking and increasing plasticity of your samples? How did you measure the Tg and how did you estimate the error bars? Can you explain the zeta potential? Can you comment the stability of your samples? Why did you determine the stability of the samples at 40 °C? Are your samples stable from biological point of view? Can you draw the structure of some of the chemical substances that you used? What is the use of the latexes that you prepared?> Did you try the UV stability of your samples? Did the student do number of tests of properies of latexes and their films by himself?	eng
dc.description.department	Fakulta chemicko-technologická	cze
dc.description.grade	Dokončená práce s úspěšnou obhajobou	cze
dc.identifier.stag	48131
dc.identifier.uri	https://hdl.handle.net/10195/83168
dc.language.iso	eng
dc.publisher	Univerzita Pardubice	cze
dc.rights	Bez omezení
dc.subject	emulsion polymerization	eng
dc.subject	latex coating	eng
dc.subject	bio-based monomer	eng
dc.subject	polymerizable emulsifier	eng
dc.subject	water resistance	eng
dc.thesis.degree-discipline	Materials Chemistry	cze
dc.thesis.degree-grantor	Univerzita Pardubice. Fakulta chemicko-technologická	cze
dc.thesis.degree-name	Ing.
dc.thesis.degree-program	Materials Chemistry	cze
dc.title	Self-crosslinking film-forming latexes prepared using sunflower oil-based monomer	eng
dc.type	diplomová práce	cze
dspace.entity.type	Publication