Preparation and characterization of novel organosoluble and thermally stable poly(benzimidazole-amide)s bearing phthalimide pendent groups

Toiserkani, Hojjat; Sheibani, Hassan; Saidi, Kazem

doi:10.1016/j.eurpolymj.2009.11.006

Cited by 22 publications

(13 citation statements)

References 27 publications

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“…5-(2-Benzimidazole)-1,3-phenylenediamine (4) was synthesized as described previously [40]. (3) was synthesized by using three-step procedure as described previously [39]. …”

Section: Experimental Section Materialsmentioning

confidence: 99%

“…The PBIA was prepared via a direct condensation reaction, according to the previously reported procedure [39]. Briefly, a mixture of 0.353 g (0.65 mmol) of 3 and 3 mL NMP was stirred under nitrogen gas and heated to 70°C to dissolve 3.…”

Section: Polymer Synthesis (Pbia)mentioning

confidence: 99%

“…We also showed the incorporation of benzoxazole ring as pendant group which gave improved results in terms of better dispersion and created nanoparticles with more spherical shapes. In a separate work, we have successfully prepared novel aromatic PBIAs with phthalimide pendent groups by direct polycondensation [39]. Good solubility in high-polar solvent and excellent thermal stability of such polymers make them a potential candidate suitable for the preparation of NCs.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication and characterization of poly(benzimidazole-amide)/functionalized titania nanocomposites containing phthalimide and benzimidazole pendent groups

Toiserkani

2015

Colloid Polym Sci

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In the present study, novel poly(benzimidazole-amide)/titania (PBIA/TiO 2 ) nanocomposites containing phthalimide and benzimidazole pendent groups with different amounts of modified titania nanoparticles (TiO 2 NPs) were successfully fabricated through ultrasonic irradiation technique. Due to the high surface energy and tendency for agglomeration, the surface TiO 2 NPs was modified by a coupling agent as (3-methacryloxypropyl)trimethoxysilane (MPS) to form MPS-TiO 2 nanoparticles. FTIR spectroscopy confirmed that MPS was successfully grafted onto the TiO 2 nanoparticles surface through Ti-O-Si chemical bonds. Thermogravimetric analysis (TGA) revealed a surface coverage of the coupling molecule of 2.8 wt.%. The resulting nanocomposites were fully characterized by FTIR spectra, X-ray diffraction (XRD) patterns, scanning electron microscopy (SEM), and TGA. SEM analyses of nanocomposites were performed in order to investigate the dispersion of nanofillers in the PBIA matrix. The TGA results of PBIA/TiO 2 nanocomposites showed that the thermal stability is obviously improved the presence of MPS-TiO 2 NPs in comparison with the pure PBIA and that this increase is higher when the NP content increases.

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“…5-(2-Benzimidazole)-1,3-phenylenediamine (4) was synthesized as described previously [40]. (3) was synthesized by using three-step procedure as described previously [39]. …”

Section: Experimental Section Materialsmentioning

confidence: 99%

Section: Polymer Synthesis (Pbia)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Fabrication and characterization of poly(benzimidazole-amide)/functionalized titania nanocomposites containing phthalimide and benzimidazole pendent groups

Toiserkani

2015

Colloid Polym Sci

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“…To overcome this limitation, some modification techniques such as incorporation of large pendent groups, using asymmetric moieties or flexible linkages, and co-polybenzimidazole synthesis, containing amide, ester and imide groups have been proposed [32][33][34] .…”

Section: Introductionmentioning

confidence: 99%

In Situ Synthesis of Silver Nanoparticles in Novel L-Phenylalanine Based Poly(Amide-Benzimidazole-imide) Matrix Through Metal Complexation Method UsingN,N′-Dimethylformamide as a Reaction Medium and Reducing Agent

Abdolmaleki

Mallakpour

Borandeh

2015

Polymer-Plastics Technology and Engineering

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Silver nanoparticles were obtained in novel optically active poly(amide-benzimidazole-imide) (PABI) matrix through an in situ procedure. Chiral PABI was prepared by polycondensation of amino acid based diacid and benzimidazole containing diamine in the presence of molten tetrabutylammonium bromide. Synthesized PABI was characterized by several techniques, including Fourier transform infrared spectra, 1 H-NMR, elemental analysis, X-ray diffraction, thermogravimetric analysis and field emission scanning electron microscopy (FE-SEM). Then, PABI/Ag nanocomposite was fabricated based on metal complexation route for preparing silver nanoparticles in the PABI matrix and was characterized by various techniques. Microscopic images revealed good dispersion of Ag nanoparticles in the polymer matrix.

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“…These polymers have high glass transition temperature, good oxidation resistance and prominent mechanical properties but their poor solubility limited their process-ability [9][10][11][12] . A succinct literature survey showed that combination of benzimidazole with amide groups in polymer backbone and synthesis of poly(benzimidazole-amide) copolymer raised solubility and process-ability of PBA [9,[13][14][15][16] . The use of inorganic fillers and combine properties of polymer with inorganic component reinforce these compounds and make them interesting compounds for application in different area [17] .…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Co Nanocomposite Based on Poly(benzimidazole-amide) Matrix and Their Behavior as Catalyst in Oxidation Reaction

Abdolmaleki

Molavian

2015

Polymer-Plastics Technology and Engineering

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2,6-Bis(5-amino-1H-benzimidazol-2-yl)pyridine was prepared and characterized by FT-IR, elemental analysis, 1 H-NMR and 13 C-NMR spectroscopic methods. Then a new poly(benzimidazole-amide) (PBA) was synthesized by polymerization of the corresponding diamine and isophthalic acid. The obtained PBA exhibited good yield and high thermal stability. Due to the existence of benzimidazole moieties in polymer's structure, it has tendency to form complexes with metal ions. So, a new PBA/Co nonocomposite was prepared. Morphological studies revealed that metal nanoparticles were dispersed in the polymer matrix without any aggregation. PBA/Co nanocomposite was used as a catalyst in the oxidation of ethyl benzene to acetophenon with tert-butyl hydro peroxide. Downloaded by [University of Otago] at 12:56 28 July 2015 2

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Preparation and characterization of novel organosoluble and thermally stable poly(benzimidazole-amide)s bearing phthalimide pendent groups

Cited by 22 publications

References 27 publications

Fabrication and characterization of poly(benzimidazole-amide)/functionalized titania nanocomposites containing phthalimide and benzimidazole pendent groups

Fabrication and characterization of poly(benzimidazole-amide)/functionalized titania nanocomposites containing phthalimide and benzimidazole pendent groups

In Situ Synthesis of Silver Nanoparticles in Novel L-Phenylalanine Based Poly(Amide-Benzimidazole-imide) Matrix Through Metal Complexation Method UsingN,N′-Dimethylformamide as a Reaction Medium and Reducing Agent

Synthesis and Characterization of Co Nanocomposite Based on Poly(benzimidazole-amide) Matrix and Their Behavior as Catalyst in Oxidation Reaction

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