Poly(amic acid)s and their poly(amide imide) counterparts containing azobenzene moieties: Characterization, imidization kinetics and photochromic properties

Konieczkowska, Jolanta; Janeczek, Henryk; Kozanecka-Szmigiel, Anna; Schab‐Balcerzak, Ewa

doi:10.1016/j.matchemphys.2016.05.066

Cited by 15 publications

(3 citation statements)

References 36 publications

(39 reference statements)

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“…This shift can be connected with the formation of strong intermolecular H-bonds between the amide groups. The same blue shift was observed for azo poly(amide imide)s in our previous works [34,37,50]. The addition of azo dyes to the poly(amide imide) matrices caused the increasing absorbance at ca.…”

Section: Linear Optical Propertiessupporting

confidence: 85%

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Azobenzene Functionalized “T-Type” Poly(Amide Imide)s vs. Guest-Host Systems—A Comparative Study of Structure-Property Relations

et al. 2020

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This paper describes the synthesis and characterization of new “T-type” azo poly(amide imide)s as well as guest-host systems based on the “T-type” matrices. The matrices possessed pyridine rings in a main-chain and azobenzene moieties located either between the amide or imide groups. The non-covalent polymers contained the molecularly dispersed 4-phenylazophenol or 4-[(4-methyl phenyl)diazinyl]phenol chromophores that are capable of forming intermolecular hydrogen bonds with the pyridine rings. The FTIR spectroscopy and the measurements of the thermal, optical and photoinduced optical birefringence were employed for the determination of the influence of H-bonds and the specific elements of polymer architecture on physicochemical properties. Moreover, the obtained results were compared to those described in our previous works to formulate structure-property relations that may be considered general for the class of “T-type” azo poly(amide imide)s.

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Section: Linear Optical Propertiessupporting

confidence: 85%

“…In the case of PAI-1[Az(H)], a new absorption band in the range of 500-700 nm was observed (Figure S3a). [34,37,50]. The addition of azo dyes to the poly(amide imide) matrices caused the increasing absorbance at ca.…”

Section: Linear Optical Propertiesmentioning

confidence: 99%

Azobenzene Functionalized “T-Type” Poly(Amide Imide)s vs. Guest-Host Systems—A Comparative Study of Structure-Property Relations

et al. 2020

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“…Poly(amide-imide)s (PAI)s are one of the significant classes of high-performance co-PIs due to a positive synergy of characteristics from both PIs and polyamides, such as high strength, good solubility in organic solvents, excellent thermal stability, and high chemical resistance. [23][24][25][26][27][28] These copolymers are the ideal candidate as matrix polymers for the advanced applications, such as sensors, electrical wire enamel, adhesives, membranes for separation, extrusion products, injection molding, and so on. [29][30][31][32] In this study, ternary superparamagnetic nanocomposites of PAI/Fe 3 O 4 @GO were prepared using a simple and facile process.…”

Section: Introductionmentioning

confidence: 99%

Supported optically active poly(amide-imide) on magnetic graphene oxide/Fe₃O₄ for Hg²⁺ adsorption from aqueous solution

Khalili¹,

Rafiee

2019

Journal of Thermoplastic Composite Materials

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The ternary superparamagnetic nanocomposites consisting of graphene oxide (GO), Fe3O4 nanoparticles, and optically active poly(amide-imide) (PAI) were fabricated in three steps consisting of a facile one-pot in situ growth of Fe3O4 on GO, resulted in the preparation of the magnetic Fe3O4@GO, modification of Fe3O4@GO by 3-aminopropyltriethoxy silane to introduce amino groups on its surface, and subsequently its compositing by various levels of 5, 10, and 15 wt% with chiral PAI derived from 3,5-diamino- N-(4-(di(1H-indol-3-yl)methyl)phenyl)benzamide and N, N′-(4,4′-carbonyldiphthaloyl)-bis-l-phenylalanine diacid through ultrasonic irradiation. Characterization of the resulting nanocomposites was performed by Fourier transform infrared spectroscopy, X-ray diffraction, vibrating sample magnetometer, scanning electron microscope (SEM), and thermogravimetric analysis (TGA). The SEM analysis showed Fe3O4 nanoparticles with 30 nm size successfully decorated the GO nanosheets. The TGA analysis established the expected thermal stabilities for PAI/Fe3O4@GO nanocomposites. Furthermore, incorporation of Fe3O4@GO in polymer matrix improved the mechanical properties substantially. PAI/Fe3O4@GO 10 wt% was used to evaluate the sorption properties of Hg2+ at pH 7.

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Synthesis and characterization of two novel poly(amide-imide)s containing pendent (5-(4,5-diphenyl-1H-imidazol-2-yl)furan-2-yl)phenyl moieties and natural amino acids linkages for adsorption of Cu(II)

Mohagheghnezhad

Rafiee

2019

Polym. Bull.

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Poly(amic acid)s and their poly(amide imide) counterparts containing azobenzene moieties: Characterization, imidization kinetics and photochromic properties

Cited by 15 publications

References 36 publications

Azobenzene Functionalized “T-Type” Poly(Amide Imide)s vs. Guest-Host Systems—A Comparative Study of Structure-Property Relations

Azobenzene Functionalized “T-Type” Poly(Amide Imide)s vs. Guest-Host Systems—A Comparative Study of Structure-Property Relations

Supported optically active poly(amide-imide) on magnetic graphene oxide/Fe₃O₄ for Hg²⁺ adsorption from aqueous solution

Synthesis and characterization of two novel poly(amide-imide)s containing pendent (5-(4,5-diphenyl-1H-imidazol-2-yl)furan-2-yl)phenyl moieties and natural amino acids linkages for adsorption of Cu(II)

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Poly(amic acid)s and their poly(amide imide) counterparts containing azobenzene moieties: Characterization, imidization kinetics and photochromic properties

Cited by 15 publications

References 36 publications

Azobenzene Functionalized “T-Type” Poly(Amide Imide)s vs. Guest-Host Systems—A Comparative Study of Structure-Property Relations

Azobenzene Functionalized “T-Type” Poly(Amide Imide)s vs. Guest-Host Systems—A Comparative Study of Structure-Property Relations

Supported optically active poly(amide-imide) on magnetic graphene oxide/Fe3O4 for Hg2+ adsorption from aqueous solution

Synthesis and characterization of two novel poly(amide-imide)s containing pendent (5-(4,5-diphenyl-1H-imidazol-2-yl)furan-2-yl)phenyl moieties and natural amino acids linkages for adsorption of Cu(II)

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Supported optically active poly(amide-imide) on magnetic graphene oxide/Fe₃O₄ for Hg²⁺ adsorption from aqueous solution