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Dispersion of upconverting nanostructures of CePO4 using rod and semi-spherical morphologies into transparent PMMA/PU IPNs by the sequential route

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posted on 12.06.2018 by D. Palma-Ramirez, M.A. Dominguez-Crespo, A.M. Torres-Huerta, V.A. Escobar-Barrios, H. Dorantes-Rosales, Helen Willcock
Upconverting luminescent poly (methylmethacrylate) (PMMA)/poly (urethane) (PU) interpenetrating polymer network (IPN) nanohybrids were prepared using a sequential polymerisation incorporating different wt.% of cerium phosphate (CePO 4 ) nanoparticles. The effect of miscibility/compatibility of the different PMMA/PU ratios, the addition and dispersion of rod and semi-spherical nanostructures in as well as the performance of selected IPNs under accelerated aging were studied using morphological, emission, thermal and mechanical studies. Structural studies revealed that there were physical interactions between C[dbnd]O groups and CePO 4 in PMMA/PU IPNs. The addition of a higher wt.% of nanostructures was found to decrease the transparency of the IPNs. Resulting PMMA/PU/CePO 4 IPN nanohybrids are photoluminescent under UV-light, supporting the prolongate of lifetime while maintaining the mechanical properties after being subjected to accelerated weathering. The addition of semi-spherical particles resulted in a more stable materials after accelerated weathering than nanorods.

Funding

D. Palma-Ramirez is grateful for her postgraduate fellowship to CONACYT, COFAA and SIP-IPN. The authors are also grateful for the financial support provided by Instituto Politecnico Nacional through the SIP2017-1186, and COFAA; CONACYT through the CB-20151320 and SNI-CONACYT.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Materials

Published in

Polymer (United Kingdom)

Volume

142

Pages

356 - 374

Citation

PALMA-RAMIREZ, D. ... et al, 2018. Dispersion of upconverting nanostructures of CePO4 using rod and semi-spherical morphologies into transparent PMMA/PU IPNs by the sequential route. Polymer, 142, pp.356-374.

Publisher

© Elsevier

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Acceptance date

26/03/2018

Publication date

2018

Notes

This paper was published in the journal Polymer and the definitive published version is available at https://doi.org/10.1016/j.polymer.2018.03.056.

ISSN

0032-3861

Language

en

Exports