Title:
TRIBOLUMINESCENT MATERIAL, USE OF A Cu COMPLEX AS A TRIBOLUMINESCENT MATERIAL, MECHANORESPONSIVE SENSOR AND METHOD FOR DETECTING A MECHANICAL LOADING
Document Type and Number:
WIPO Patent Application WO/2022/014514
Kind Code:
A1
Abstract:
Triboluminescent materials that generate emission of light in response to mechanical stimulus attract significant attention due to their applications in development of "smart materials" and damage sensors. Among metal complexes, rare-earth europium and terbium complexes are most widely used, while there is no systematic data on triboluminescence in more readily available and inexpensive Cu complexes, with only a few scattered examples reported in the literature. We report a new family of photoluminescent Cu-NHC complexes that show bright triboluminescence (TL) in crystal state visible even in ambient light under air upon grinding or crushing the crystalline sample. Moreover, when these complexes are dispersed into amorphous polymethylmethacrylate (PMMA) films even at small concentrations, TL is easily observed. In Cu-containing polymer films, surrounding gas discharge is likely involved in excitation of brightly luminescent Cu-NHC complexes. Observation of TL in polymer films overcomes limitations of using crystalline phase for mechanoresponse and opens up possibilities for development of mechanoresponsive coatings and materials based on inexpensive metals such as Cu.
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Inventors:
KHUSNUTDINOVA JULIA (JP)
KARIMATA AYUMU (JP)
PATIL PRADNYA HUKUMCHAND (JP)
KARIMATA AYUMU (JP)
PATIL PRADNYA HUKUMCHAND (JP)
Application Number:
PCT/JP2021/026068
Publication Date:
January 20, 2022
Filing Date:
July 12, 2021
Export Citation:
Assignee:
OKINAWA INST SCIENCE & TECH SCHOOL CORP (JP)
International Classes:
C07F1/08; C09K11/06
Other References:
KARIMATA AYUMU, PRADNYA H PATIL, EUGENE KHASKIN, SÉBASTIEN LAPOINTE, ROBERT R FAYZULLIN, PAVLOS STAMPOULIS, JULIA R KHUSNUTDINOVA : "Highly sensitive mechano-controlled luminescence in polymer films modified by dynamic Cu-based cross linkers", CHEMICAL COMMUNICATIONS, vol. 56, no. 1, 22 November 2019 (2019-11-22), pages 50 - 53, XP055887505, DOI: 10.1039/c9cc08354e
KARIMATA AYUMU, PATIL PRADNYA, KHASKIN EUGENE, LAPOINTE SÉBASTIEN, FAYZULLIN ROBERT R., STAMPOULIS PAVLOS, KHUSNUTDINOVA JULIA: "Sensitive Mechanocontrolled Luminescence in Cross-Linked Polymer Films", CHEMRXIV [ONLINE], 10 October 2019 (2019-10-10), XP055887501, Retrieved from the Internet DOI: 10.26434/chemrxiv.9943943.v1
FILONENKO GEORGY A., SUN DAPENG, WEBER MANUELA, MÜLLER CHRISTIAN, PIDKO EVGENY A.: "Multicolor Organometallic Mechanophores for Polymer Imaging Driven by Exciplex Level Interactions", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, AMERICAN CHEMICAL SOCIETY, vol. 141, no. 24, 19 June 2019 (2019-06-19), pages 9687 - 9692, XP055887499, ISSN: 0002-7863, DOI: 10.1021/jacs.9b04121
CANOSSA STEFANO, FILONENKO GEORGY A.: "Color‐Based Optical Detection of Glass Transitions on Microsecond Timescales Enabled by Exciplex Dynamics", ADVANCED MATERIALS, VCH PUBLISHERS, DE, vol. 32, no. 4, 1 January 2020 (2020-01-01), DE , pages 1906764, XP055887497, ISSN: 0935-9648, DOI: 10.1002/adma.201906764
KARIMATA AYUMU, PATIL PRADNYA H., FAYZULLIN ROBERT R., KHASKIN EUGENE, LAPOINTE SÉBASTIEN, KHUSNUTDINOVA JULIA R.: "Triboluminescence of a new family of Cu I –NHC complexes in crystalline solid and in amorphous polymer films", CHEMICAL SCIENCE, ROYAL SOCIETY OF CHEMISTRY, UNITED KINGDOM, vol. 11, no. 39, 14 October 2020 (2020-10-14), United Kingdom , pages 10814 - 10820, XP055887496, ISSN: 2041-6520, DOI: 10.1039/D0SC04442C
KARIMATA AYUMU, PATIL PRADNYA, KHASKIN EUGENE, LAPOINTE SÉBASTIEN, FAYZULLIN ROBERT R., STAMPOULIS PAVLOS, KHUSNUTDINOVA JULIA: "Sensitive Mechanocontrolled Luminescence in Cross-Linked Polymer Films", CHEMRXIV [ONLINE], 10 October 2019 (2019-10-10), XP055887501, Retrieved from the Internet
FILONENKO GEORGY A., SUN DAPENG, WEBER MANUELA, MÜLLER CHRISTIAN, PIDKO EVGENY A.: "Multicolor Organometallic Mechanophores for Polymer Imaging Driven by Exciplex Level Interactions", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, AMERICAN CHEMICAL SOCIETY, vol. 141, no. 24, 19 June 2019 (2019-06-19), pages 9687 - 9692, XP055887499, ISSN: 0002-7863, DOI: 10.1021/jacs.9b04121
CANOSSA STEFANO, FILONENKO GEORGY A.: "Color‐Based Optical Detection of Glass Transitions on Microsecond Timescales Enabled by Exciplex Dynamics", ADVANCED MATERIALS, VCH PUBLISHERS, DE, vol. 32, no. 4, 1 January 2020 (2020-01-01), DE , pages 1906764, XP055887497, ISSN: 0935-9648, DOI: 10.1002/adma.201906764
KARIMATA AYUMU, PATIL PRADNYA H., FAYZULLIN ROBERT R., KHASKIN EUGENE, LAPOINTE SÉBASTIEN, KHUSNUTDINOVA JULIA R.: "Triboluminescence of a new family of Cu I –NHC complexes in crystalline solid and in amorphous polymer films", CHEMICAL SCIENCE, ROYAL SOCIETY OF CHEMISTRY, UNITED KINGDOM, vol. 11, no. 39, 14 October 2020 (2020-10-14), United Kingdom , pages 10814 - 10820, XP055887496, ISSN: 2041-6520, DOI: 10.1039/D0SC04442C
Attorney, Agent or Firm:
SIKS & CO. (JP)
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