A new one-pot method for the melt synthesis of polyarylates based on resorcinol and phthalic acids has been developed. The method consists in the reaction of diphenyl carbonate, phthalic acids and resorcinol using titanium butoxide as catalyst. Model reactions have shown that the diaryl ester is generated in situ by reaction of the aromatic diacid and of the aromatic diol with diphenyl carbonate. It is thus possible to obtain polymers with tailored end-groups and molecular weight, by changing the molar ratio of the monomers and the reaction conditions. More specifically, we applied this method to the synthesis of low molecular weight polymers with carboxylic end-groups, suitable for powder coating applications. The literature actually reports that resorcinol based polyarylates present an outstanding long-term UV stability and therefore COOH terminated oligomers are highly promising materials for the preparation of super-durable powder coatings. Such method can also be applied to the preparation of polyarylates with high molecular weight, that are based not only on resorcinol and phthalic acids.

Martino Colonna, Claudio Gioia, Micaela Vannini, Maurizio Fiorini, Annamaria Celli, Alessandro Minesso, et al. (2014). One-pot melt synthesis of resorcinol based polyarylates for UV-stable coatings. PROGRESS IN ORGANIC COATINGS, 77, 1701-1708 [10.1016/j.porgcoat.2014.05.017].

One-pot melt synthesis of resorcinol based polyarylates for UV-stable coatings

COLONNA, MARTINO;GIOIA, CLAUDIO;VANNINI, MICAELA;FIORINI, MAURIZIO;CELLI, ANNAMARIA;
2014

Abstract

A new one-pot method for the melt synthesis of polyarylates based on resorcinol and phthalic acids has been developed. The method consists in the reaction of diphenyl carbonate, phthalic acids and resorcinol using titanium butoxide as catalyst. Model reactions have shown that the diaryl ester is generated in situ by reaction of the aromatic diacid and of the aromatic diol with diphenyl carbonate. It is thus possible to obtain polymers with tailored end-groups and molecular weight, by changing the molar ratio of the monomers and the reaction conditions. More specifically, we applied this method to the synthesis of low molecular weight polymers with carboxylic end-groups, suitable for powder coating applications. The literature actually reports that resorcinol based polyarylates present an outstanding long-term UV stability and therefore COOH terminated oligomers are highly promising materials for the preparation of super-durable powder coatings. Such method can also be applied to the preparation of polyarylates with high molecular weight, that are based not only on resorcinol and phthalic acids.
2014
Martino Colonna, Claudio Gioia, Micaela Vannini, Maurizio Fiorini, Annamaria Celli, Alessandro Minesso, et al. (2014). One-pot melt synthesis of resorcinol based polyarylates for UV-stable coatings. PROGRESS IN ORGANIC COATINGS, 77, 1701-1708 [10.1016/j.porgcoat.2014.05.017].
Martino Colonna;Claudio Gioia;Micaela Vannini;Maurizio Fiorini;Annamaria Celli;Alessandro Minesso;Roberto Cavalieri;Uwe E. Kubillus
File in questo prodotto:
Eventuali allegati, non sono esposti

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/475370
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 5
  • ???jsp.display-item.citation.isi??? 4
social impact