This article describes the preparation of thymol-doped acrylic resins by photopolymerization of solutions of thymol in tripropylenglycoldiacrylic monomer. This provides an easy, energy-saving, and environmental friendly process to prepare antibacterial plastics (fulfilling most of the "green chemistry" requirements). The results demonstrate that thymol can be included in the resin even at high concentration (up to 28.6%) without affecting the photocuring reaction and losing transparency. The glass transition temperature of the doped resin decreases when the thymol content increases, as it behaves like a plasticizer with respect to the acrylic resin. As indicated by HPLC analysis, thymol can be released in liquid media at a rate that depends on the chemical nature of the liquid. Evaluation by agar diffusion assays showed an antibacterial activity on both Gram-negative and Gram-positive bacteria (Staphylococcus aureus, Listeria monocytogenes, and Escherichia coli). The antibacterial activity can occur just on the plastic surface when the thymol-doped resins is applied as thin coating, while it is evident also in the surrounding agar medium for doped plastic discs, 1.2 mm thick with a concentration of thymol in the resin higher than 16.7%.

Preparation, characterization, and antibacterial activity of photocured thymol-doped acrylic resins / DEGLI ESPOSTI, Micaela; Pilati, Francesco; Bondi, Moreno; DE NIEDERHAUSERN, Simona; Iseppi, Ramona; M., Toselli. - In: JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH. - ISSN 1945-9645. - STAMPA. - 10:(2013), pp. 371-379. [10.1007/s11998-012-9453-3]

Preparation, characterization, and antibacterial activity of photocured thymol-doped acrylic resins

DEGLI ESPOSTI, Micaela;PILATI, Francesco;BONDI, Moreno;DE NIEDERHAUSERN, Simona;ISEPPI, Ramona;
2013

Abstract

This article describes the preparation of thymol-doped acrylic resins by photopolymerization of solutions of thymol in tripropylenglycoldiacrylic monomer. This provides an easy, energy-saving, and environmental friendly process to prepare antibacterial plastics (fulfilling most of the "green chemistry" requirements). The results demonstrate that thymol can be included in the resin even at high concentration (up to 28.6%) without affecting the photocuring reaction and losing transparency. The glass transition temperature of the doped resin decreases when the thymol content increases, as it behaves like a plasticizer with respect to the acrylic resin. As indicated by HPLC analysis, thymol can be released in liquid media at a rate that depends on the chemical nature of the liquid. Evaluation by agar diffusion assays showed an antibacterial activity on both Gram-negative and Gram-positive bacteria (Staphylococcus aureus, Listeria monocytogenes, and Escherichia coli). The antibacterial activity can occur just on the plastic surface when the thymol-doped resins is applied as thin coating, while it is evident also in the surrounding agar medium for doped plastic discs, 1.2 mm thick with a concentration of thymol in the resin higher than 16.7%.
2013
10
371
379
Preparation, characterization, and antibacterial activity of photocured thymol-doped acrylic resins / DEGLI ESPOSTI, Micaela; Pilati, Francesco; Bondi, Moreno; DE NIEDERHAUSERN, Simona; Iseppi, Ramona; M., Toselli. - In: JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH. - ISSN 1945-9645. - STAMPA. - 10:(2013), pp. 371-379. [10.1007/s11998-012-9453-3]
DEGLI ESPOSTI, Micaela; Pilati, Francesco; Bondi, Moreno; DE NIEDERHAUSERN, Simona; Iseppi, Ramona; M., Toselli
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/854695
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 11
  • ???jsp.display-item.citation.isi??? 10
social impact