INTECIN   20395
INSTITUTO DE TECNOLOGIAS Y CIENCIAS DE LA INGENIERIA "HILARIO FERNANDEZ LONG"
Unidad Ejecutora - UE
artículos
Título:
Polyelectroyles with tetrazole pendant groups useful in the stabilization of Au and Ag nanoparticles
Autor/es:
CALDRA-VILLALOBOS, M.; HERRERA-GONZALEZ, A. M.; JESUS GARCÍA-SERRANO; MARTINS ALHO, MIRIAM; MONTALVO-SIERRA, I
Revista:
JOURNAL OF APPLIED POLYMER SCIENCE
Editorial:
JOHN WILEY & SONS INC
Referencias:
Lugar: New York; Año: 2016 vol. 133 p. 43773 - 43783
ISSN:
0021-8995
Resumen:
Stabilization of metallic nanoparticles is a challenge of enormous dimensions because the nanosize nanoparticles are notstable by themselves and therefore they tend to coalesce, forming large agglomerates causing the loss of the properties of individualnanoparticles. In this work, we report the synthesis of polyelectrolytes with tetrazole groups useful as stabilizing agents of Au and Agnanoparticles. The polyelectrolytes with tetrazole groups were synthetized from the appropriate starting materials with nitrile groups,which were successfully converted to the corresponding 1-H-tetrazole rings using 1,3-dipolar cycloaddition with ammonium azide.These new materials were characterized by NMR and FT-IR techniques and they were used for the stabilization of Au and Ag colloidalnanoparticles at room temperature, using sodium borohydride as reducing agent. Formation and stabilization processes of thenanoparticles were monitored by UV-vis spectroscopy. Shape and size of nanoparticles were studied by TEM. The polyelectrolyteswith tetrazole pendant group are suitable materials for synthesis and stabilization of gold nanoparticles, obtaining average sizes lowerthan 10 nm.