Deep-blue emissive and colourless polyimides: optical property tuning by triphenylamino and carbazole chromophores
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F24%3A39921730" target="_blank" >RIV/00216275:25310/24:39921730 - isvavai.cz</a>
Result on the web
<a href="https://pubs.rsc.org/en/content/articlepdf/2024/ma/d3ma00871a" target="_blank" >https://pubs.rsc.org/en/content/articlepdf/2024/ma/d3ma00871a</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d3ma00871a" target="_blank" >10.1039/d3ma00871a</a>
Alternative languages
Result language
angličtina
Original language name
Deep-blue emissive and colourless polyimides: optical property tuning by triphenylamino and carbazole chromophores
Original language description
Two novel emissive chromophores based on triphenylamine and carbazole have been designed, prepared and further utilized as comonomers towards end-capped emissive colourless polyimides. The polyimide films were fabricated using 1,2,4,5-cyclohexanetetracarboxylicdianhydride/2,2-bis[4-(4-aminophenoxy)phenyl]propane (CHDA-BAPP) and 4,4 '-(hexafluoroisopropylidene)diphthalic anhydride/2,2'-bis(trifluoromethyl)benzidine (6FDA-TFMB), and 5, 1 or 0.1 mol% of comonomer. Fundamental structure-property relationships were elucidated both in solution and the polymeric backbone. Facile planarization/rigidification of the chromophore central donor turned out to be a useful strategy to modulate the optical and thermal properties both of the single molecule and polymeric film. The prepared films are highly thermally stable (T5% up to 526 degrees C) and highly transparent (T400 ranging between 72-86% for 0.1 mol% loadings), and most of the films were colourless. The luminescence colour of the films ranges from yellow-greenish to blue. CHDA-BAPP carbazole-terminated PIs showed deep-blue emission and excellent optical properties with CIEy <= 0.1 and high colour purity (FWHM 38 resp. 42 nm) doped with 1 resp. 0.1 mol% of comonomer. The experimental data were further corroborated by DFT calculations and single crystal X-ray analysis. Two novel emissive chromophores based on triphenylamine and carbazole have been designed, prepared and further utilized as comonomers towards end-capped emissive colourless polyimides.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10401 - Organic chemistry
Result continuities
Project
<a href="/en/project/EF17_048%2F0007376" target="_blank" >EF17_048/0007376: High sensitive sensors and low density materials based on polymeric nanocomposites - NANOMAT</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials advances
ISSN
2633-5409
e-ISSN
2633-5409
Volume of the periodical
5
Issue of the periodical within the volume
8
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
"3198–3206"
UT code for WoS article
001147955200001
EID of the result in the Scopus database
2-s2.0-85182920480