Photochromic supramolecular azopolyimides based on hydrogen bonds
PBN-AR
Instytucja
Centrum Materiałów Polimerowych i Węglowych Polskiej Akademii Nauk
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Optical Materials
ISSN
0925-3467
EISSN
Wydawca
ELSEVIER SCIENCE BV
DOI
URL
Rok publikacji
2015
Numer zeszytu
Strony od-do
501–511
Numer tomu
47
Identyfikator DOI
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Autorzy
Pozostali autorzy
+ 5
Słowa kluczowe
en
Azobenzene;
Polyimides;
Photoinduced optical anisotropy;
Surface relief grating
en
SURFACE-RELIEF GRATINGS;
AZOBENZENE-FUNCTIONALIZED POLYMERS;
PHOTOINDUCED OPTICAL ANISOTROPY;
SIDE-CHAIN POLYMERS;
AZO-POLYMER;
INFRARED-SPECTRA;
ACID CRYSTALS;
FILMS;
COMPLEXES;
POLYIMIDES
Streszczenia
Język
en
Treść
The approach of deriving new photoresponsive active supramolecular azopolymers based on the hydrogen bonds is described. Polymers with imide rings, i.e., poly(esterimide)s and poly(etherimide)s, with phenolic hydroxyl or carboxylic groups were applied as matrixes for the polymer dye supramolecular systems. Supramolecular films were built on the basis of the hydrogen bonds between the functional groups of the polymers and various azochromophores, that is, 4-phenylazophenol, 4-[4-(6-hydroxyhexy loxy)phenylazo]benzene, 4[4-(6-hexadecaneoxy)phenylazo]pyridine and 4-(4-hydroxyphenylazo)-pyridine. The hydrogen bonding interaction in azo-systems were studied by Fourier transform infrared spectroscopy and for selected assembles by H-1 NMR technique. The obtained polyimide azo-assembles were characterized by X-ray diffraction and DSC measurements. H-bonds allow attaching a chromophore to each repeating unit of the polymer, thereby suppressing the macroscopic phase separation except for the systems based on 4-[4-(6-hydroxyhexyloxy)phenylazo]benzene. H-bonds systems were amorphous and revealed glass transition temperatures lower than for the polyimide matrixes (170-260 degrees C). The photoresponsive behavior of the azo-assemblies was tasted in holographic recording experiment. (C) 2015 Elsevier B.V. All rights reserved.
Cechy publikacji
oryginalny artykuł naukowy
Inne
System-identifier
PX-56b463558106eb71826e41a5
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