prikaz prve stranice dokumenta Specifični utjecaji iona na nastajanje i svojstva višesloja poli(alilamin-hidroklorid)/poli(akrilna kiselina)
Embargo period 2025-07-11
doctoral thesis
Specifični utjecaji iona na nastajanje i svojstva višesloja poli(alilamin-hidroklorid)/poli(akrilna kiselina)
Zagreb: University of Zagreb, Faculty of Science, 2023. urn:nbn:hr:217:941332
Klačić, Tin
University of Zagreb
Faculty of Science
Department of Chemistry

Institutional repository: Repository of the Faculty of Science

Cite this document

Klačić, T. (2023). Specifični utjecaji iona na nastajanje i svojstva višesloja poli(alilamin-hidroklorid)/poli(akrilna kiselina) (Doctoral thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:941332

Klačić, Tin. "Specifični utjecaji iona na nastajanje i svojstva višesloja poli(alilamin-hidroklorid)/poli(akrilna kiselina)." Doctoral thesis, University of Zagreb, Faculty of Science, 2023. https://urn.nsk.hr/urn:nbn:hr:217:941332

Klačić, Tin. "Specifični utjecaji iona na nastajanje i svojstva višesloja poli(alilamin-hidroklorid)/poli(akrilna kiselina)." Doctoral thesis, University of Zagreb, Faculty of Science, 2023. https://urn.nsk.hr/urn:nbn:hr:217:941332

Klačić, T. (2023). 'Specifični utjecaji iona na nastajanje i svojstva višesloja poli(alilamin-hidroklorid)/poli(akrilna kiselina)', Doctoral thesis, University of Zagreb, Faculty of Science, accessed 20 November 2024, https://urn.nsk.hr/urn:nbn:hr:217:941332

Klačić T. Specifični utjecaji iona na nastajanje i svojstva višesloja poli(alilamin-hidroklorid)/poli(akrilna kiselina) [Doctoral thesis]. Zagreb: University of Zagreb, Faculty of Science; 2023 [cited 2024 November 20] Available at: https://urn.nsk.hr/urn:nbn:hr:217:941332

T. Klačić, "Specifični utjecaji iona na nastajanje i svojstva višesloja poli(alilamin-hidroklorid)/poli(akrilna kiselina)", Doctoral thesis, University of Zagreb, Faculty of Science, Zagreb, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:217:941332

Metadata
TitleSpecifični utjecaji iona na nastajanje i svojstva višesloja poli(alilamin-hidroklorid)/poli(akrilna kiselina)
Title (english)Specific effects of ions on the formation and properties of poly(allylamine hydrochloride)/poly(acrylic acid) multilayer
AuthorTin Klačić
MentorDavor Kovačević (mentor)
Committee memberIvana Biljan (predsjednik povjerenstva)
Committee memberJosip Požar (član povjerenstva)
Committee memberMarko Kralj (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Chemistry)
Zagreb
Defense date and country2023-07-11, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Universal decimal classification
(UDC)		54 - Chemistry. Crystallography. Mineralogy
Abstract
Polielektrolitni kompleksi i višeslojevi poli(alilamin-hidroklorida) i poli(akrilne kiseline) pripravljeni su u vodenim otopinama NaF, NaCl, NaClO4, LiCl i (CH3)4NCl. Nastanak polielektrolitnih kompleksa po prvi puta istražen je visoko-razlučivom ultrazvučnom spektroskopijom. Ovom metodom ustanovljeno je da interpolielektrolitna neutralizacija rezultira ion-specifičnom agregacijom nabijenih koloidnih kompleksa. Analogan utjecaj iona određen je u slučaju odgovarajućih višeslojeva. Elipsometrom i mikroskopom atomskih sila utvrđeno je da debljina i hrapavost filma raste u nizu F− < Cl− < ClO4− za anione odnosno (CH3)4N+ < Na+ < Li+ za katione. Nadalje, ustanovljeno je da hidrofobnost višesloja također slijedi opisani trend za anione kada je polikation završni sloj filma. Zagrijavanjem polielektrolitnih višesloja tijekom njihove priprave potisnut je specifičan utjecaj iona na površinsku hrapavost i močivost zbog reorijentacije i migracije polimernih lanaca na međupovršini višesloj/zrak. Naposlijetku, provedeno istraživanje ukazuje na značajnu korelaciju između procesa interpolielektrolitne neutralizacije u otopini i na površini.
Abstract (english)
Polyelectrolyte complexes and multilayers of poly(allylamine hydrochloride) and poly(acrylic acid) were prepared in aqueous solutions of NaF, NaCl, NaClO4, LiCl, and (CH3)4NCl. The formation of polyelectrolyte complexes was investigated for the first time by high-resolution ultrasonic spectroscopy. Using this method, it was established that interpolyelectrolyte neutralization results in ion-specific aggregation of charged colloidal complexes. Analogous influence of ions was observed in the case of corresponding multilayers. Using ellipsometer and atomic force microscope, it was determined that the thickness and roughness of the film increases in the sequence F− < Cl− < ClO4− for anions and (CH3)4N+ < Na+ < Li+ for cations. Furthermore, it was found that the hydrophobicity of the multilayer also follows the described trend for anions when a polycation is terminating layer of the film. By heating polyelectrolyte multilayers during their preparation, the specific influence of ions on surface roughness and wettability was suppressed due to the reorientation and migration of polymer chains at the multilayer/air interface. Finally, the conducted research indicates a significant correlation between the process of interpolyelectrolyte neutralization in solution and on the surface.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:941332
Promotion2023
ProjectNumber: IPS-2020-01-6126
Title: Modulacija polifenolnog profila voća uslijed fizikalnih tretmana nakon branja
Title: Modulation of fruit polyphenolic profile by sustainable postharvest physical treatments
Leader: Davor Kovačević
Jurisdiction: Croatia
Funder: HRZZ
Funding stream: IPS
Study programmeTitle: Doctoral study in chemistry
Study programme type: university
Study level: postgraduate
Academic / professional title: doktor/doktorica znanosti, područje prirodnih znanosti, polje kemija (doktor/doktorica znanosti, područje prirodnih znanosti, polje kemija)
Type of resourceText
Extent144, XXIV str. ; 30 cm
File originBorn digital
Access conditionsEmbargoed access
Embargo expiration date: 2025-07-11
Terms of useLicence In copyright icon
Created on2023-07-13 13:02:30