New Poly(azomethine‐urethane)s including melamine derivatives in the main chain: Synthesis and thermal characterization

Kaya, İsmet; Yıldırım, Mehmet; Kamacı, Musa; Avcı, Ali

doi:10.1002/app.33441

Cited by 22 publications

(13 citation statements)

References 42 publications

(43 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…But only a few studies have been reported on poly(azomethine-urethane)s (PAMUs) and polyphenol derivatives of PAMUs up till now. This class of PAMUs, thus, still need to research with new contributions [19,20] At the first part of this study, we synthesized polyurethane by condensation reaction of 2,4-dihydroxy benzaldehyde with methylene di-p-phenyl diisocyanate (MDI). Then, this obtained polyurethane was converted to poly(azomethine-urethane) derivatives using different aminophenols.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization, and thermal degradation of new aromatic poly(azomethine-urethane)s and their polyphenol derivatives

Kaya

Avcı

2012

J Polym Res

Self Cite

View full text Add to dashboard Cite

A new polyurethane was synthesized by condensation reaction of 2,4-dihydroxy benzaldehyde (DHB) with methylene-di-p-phenyl-diisocyanate (MDI) under argon atmosphere. The synthesized polyurethane was converted to its poly (azomethine urethane) species (MP-2AP, MP-3AP, and MP-4AP) by graft copolymerization reactions with amino phenols (2-amino phenol, 3-amino phenol, and 4-amino phenol). Obtained poly(azomethine urethane)s (PAMUs) were converted to their polyphenol species (P-MP-2AP, P-MP-3AP, and P-MP-4AP) by oxidative polymerization reaction (OP) using NaOCl as the oxidant. The structures of the obtained compounds were confirmed by FT-IR, UV-vis, 1 H-NMR, and 13 C-NMR techniques. The molecular weight distribution parameters of the synthesized compounds were determined by the size exclusion chromatography (SEC). The synthesized compounds were also characterized by solubility tests, TG-DTA, and DSC analyses. Thermal decomposition steps at various temperatures were clarified by FT-IR analyses of degraded products. Fluorescence measurements were carried out in various concentrated DMF solutions to determine the optimum concentrations to obtain the maximal PL intensities.

show abstract

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization, and thermal degradation of new aromatic poly(azomethine-urethane)s and their polyphenol derivatives

Kaya

Avcı

2012

J Polym Res

Self Cite

View full text Add to dashboard Cite

show abstract

“…Some additional peaks including aromatic -CH (3010-3063 cm -1 ) stretch and aliphatic -CH (2857-2952 cm -1 ) vibration are also shown in Table 2. The analysis results clearly verify the formation of PAZUs [19,27,28]. 13 C-NMR spectrum of SS is shown in Fig.…”

Section: Solubilities and Structures Of The Compoundsmentioning

confidence: 73%

Fluorescence, thermal and electrochemical properties of poly(azomethine-urethane)s containing sulfone group

2015

Self Cite

View full text Add to dashboard Cite

In this study, the new sulfone group-containing poly(azomethine-urethane)s (PAZUs) were synthesized to investigate the effects various diisocyanates on the thermal, fluorescence, electrochemical and morphological properties. The structures of PAZUs have been confirmed by FT-IR, NMR, and SEC analyses. The electrochemical behaviors of the PAZUs were examined by cyclic voltammetry. Optical properties were investigated by UV-Vis and fluorescence measurements. The PAZUs were further characterized by TGA, DSC, SEM, and AFM techniques. TGA analyses results showed considerable increase in the thermal stability of polyurethanes due to the introduction of azomethine bond in the main chain. Consequently, because of the fine thermal properties the obtained materials can be used to produce thermally stable materials.

show abstract

“…The products were dried in a vacuum oven at 75°C for 24 h (yields 85, 82, and 88% for PUI-1, PUI-2, and PUI-3, respectively). [26,27] …”

Section: Syntheses Of the Puismentioning

confidence: 99%

Thermal, fluorescence, and electrochemical characteristics of novel poly(urethane-imide)s

Avcı

Şirin

2013

Designed Monomers and Polymers

Self Cite

View full text Add to dashboard Cite

In this study, the novel thermally stable poly(urethane-imide)s (PUIs) were synthesized. The structures of the obtained polymers were confirmed by FT-IR and NMR techniques. The molecular weight distribution parameters of the synthesized PUIs were determined by the size exclusion chromatography (SEC). The synthesized PUIs were also characterized by solubility tests, solution viscosity, TG-DTA, and DSC analyses. Cyclic voltammetry measurements were carried out, and HOMO-LUMO energy levels and electrochemical band gaps (E 0 g ) were calculated from their absorption edges. Additionally, optical band gaps (E g ) were determined by using UV-vis spectra of the materials. Fluorescence measurements were carried out in various concentrated DMSO solutions to determine the optimum concentrations to obtain the maximal PL intensities. Also, morphological characterizations were made by scanning electron microscopy technique.

show abstract

New Poly(azomethine‐urethane)s including melamine derivatives in the main chain: Synthesis and thermal characterization

Cited by 22 publications

References 42 publications

Synthesis, characterization, and thermal degradation of new aromatic poly(azomethine-urethane)s and their polyphenol derivatives

Synthesis, characterization, and thermal degradation of new aromatic poly(azomethine-urethane)s and their polyphenol derivatives

Fluorescence, thermal and electrochemical properties of poly(azomethine-urethane)s containing sulfone group

Thermal, fluorescence, and electrochemical characteristics of novel poly(urethane-imide)s

Contact Info

Product

Resources

About