Effect of Backbone Variation on Properties of Fluorinated Polyimides toward Optoelectronic Applications
PBN-AR
Instytucja
Wydział Matematyki, Fizyki i Chemii (Uniwersytet Śląski w Katowicach)
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
MACROMOLECULAR CHEMISTRY AND PHYSICS
ISSN
1022-1352
EISSN
1521-3935
Wydawca
WILEY-BLACKWELL
DOI
URL
Rok publikacji
2016
Numer zeszytu
15
Strony od-do
1661−1670
Numer tomu
217
Identyfikator DOI
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Autorzy
(liczba autorów: 5)
Pozostali autorzy
+ 3
Streszczenia
Język
EN
Treść
The fluorinated polyimides are synthesized from 4,4′-(hexafl uoroisopropylidene)diphthalic anhydride and various diamines containing fl uorene, anthraquinone, phenanthridine, stil-bene, and fl uorenylidene units. The polymers exhibit high glass transition temperature ( Tg = 170–261 °C) and high thermal stability with decomposition temperatures ( Td ) in the range of 320–560 °C and 290–520 °C in nitrogen atmosphere and in air, respectively. The optical prop-erties, that is, absorption in UV–vis range and photoluminescence of obtained polyimides, are investigated in solution and in solid state as a blend with inert poly(methyl methacrylate). The polymers in solution and in solid state emit light in the range of 356–572 nm depending on the polymer structure. Additionally, the photoluminescence properties of the polyimide containing phenanthridine units in the backbone before and after protonation with HCl and meth-anesulfonic acid are tested in N -methyl-2-pyrrolidone solution. All polyimides are electrochemically active and undergo an electrochemical reduction process as is found in cyclic voltam-metry. The lowest unoccupied molecular orbital (LUMO) levels are found in the range from −3.58 to −3.93 eV.
Inne
System-identifier
0192800140672
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