ǂa ǂrheological and LF-NMR study of polymer-polymer interactions
Tilen Kopač (Avtor), Michela Abrami (Avtor), Mario Grassi (Avtor), Aleš Ručigaj (Avtor), Matjaž Krajnc (Avtor)

Povzetek

A simple relation between pendant groups of polymers in hydrogels is introduced to determine the crosslink density of (complex) hydrogel systems (mixtures of 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) modified nanocellulose, alginate, scleroglucan and Laponite in addition of crosslinking agents). Furthermore, the rheological properties and their great potential connection to design complex hydrogel systems with desired properties have been thoroughly investigated. Hydrogel structures governing internal friction and flow resistance were described by the predominant effect of ionic, hydrogen, and electrostatic interactions. The relationship between rheological properties and polymer-polymer interactions in the hydrogel network is explained and expressed in a new mathematical model for determining the crosslink density of (crosslinked) hydrogels based on single or mixture of polymer systems. In the end, the combined used of rheology and low field nuclear magnetic resonance spectroscopy (LF-NMR) for the characterization of hydrogel networks is developed.

Ključne besede

gostota zamreženja;reologija;LF-NMR;hidrogelne interakcije;matematično modeliranje;crosslink density;rheology;hydrogel interactions;mathematical modeling;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FKKT - Fakulteta za kemijo in kemijsko tehnologijo
UDK: 678:532.135
COBISS: 85328899 Povezava se bo odprla v novem oknu
ISSN: 0144-8617
Št. ogledov: 249
Št. prenosov: 121
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: gostota zamreženja;reologija;LF-NMR;hidrogelne interakcije;matematično modeliranje;
Vrsta dela (COBISS): Članek v reviji
Strani: str. 1-15
Zvezek: ǂVol. ǂ277
Čas izdaje: 1 Feb. 2022
DOI: 10.1016/j.carbpol.2021.118895
ID: 13981585