J 2024

Anatase and rutile nanoparticles in photopolymer 3D-printed nanocomposites: Band gap-controlled electron interactions in free-radical and cationic photocuring

KORCUSKOVA, Martina, Juraj SVATIK, Wiktoria TOMAL, Aneta ŠIKYŇOVÁ, Vishakha VISHAKHA et. al.

Basic information

Original name

Anatase and rutile nanoparticles in photopolymer 3D-printed nanocomposites: Band gap-controlled electron interactions in free-radical and cationic photocuring

Authors

KORCUSKOVA, Martina, Juraj SVATIK, Wiktoria TOMAL, Aneta ŠIKYŇOVÁ (703 Slovakia, belonging to the institution), Vishakha VISHAKHA, Filip PETKO, Mariusz GALEK, Pawe STALMACH, Joanna ORTYL and Petr LEPCIO

Edition

REACTIVE & FUNCTIONAL POLYMERS, AMSTERDAM, ELSEVIER, 2024, 1381-5148

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10404 Polymer science

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 5.100 in 2022

Organization unit

Faculty of Medicine

UT WoS

001239963600001

Keywords in English

Photoinitiation; Titanium dioxide; electron transfer; Cyclic voltammetry; Conversion

Tags

Tags

International impact, Reviewed
Změněno: 1/7/2024 13:55, Mgr. Tereza Miškechová

Abstract

V originále

The preparation of functional photopolymer nanocomposites is affected by both the physical and chemical interactions of nanoparticles (NPs) and polymer resin. Some NPs, such as semiconducting metal oxides, may contribute by their photocatalytic behavior and electron transfer, influencing the kinetics of the photopolymerization reaction. This study has investigated the complex effect of titanium dioxide (TiO 2 ) NPs in anatase and rutile form on the conversion, kinetics, and printability of free -radical and cationic photopolymerization resin. Two different polymorphs of TiO 2 NPs ensured identical chemical properties, but different physical effects related to their varying band gap energies and electron transfer efficiency. These parameters were found to be crucial for influencing the photopolymerization kinetics. While rutile showed a more pronounced enhancement of the free -radical photopolymerization ' s conversion and kinetics, cationic photopolymerization was favourably affected only by anatase NPs due to the photosensitization effect. These findings are critical in understanding and designing functional nanocomposite materials processed by vat photopolymerization 3D printing that could find use in optical, medical, or environmental applications.