Preparation and characteristics of poly(amide–imide)/titania nanocomposite thin films

Tsai, Mei‐Hui; Chang, Chi‐Jung; Chen, Pei-Jyun; Ko, Cheng-Jung

doi:10.1016/j.tsf.2007.07.033

Cited by 39 publications

(32 citation statements)

References 18 publications

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“…25 A small increase is observed for the residual weight of PAI NCs at temperatures above 600 o C. On the other hand, the char yield of pure PAI at 800 ºC is 42%, whilst those of the NCs (PAI/TiO 2 NC 5, 10, 15, 20 wt%) at 800 ºC are in the range of 60-67%. On the basis of LOI values (41)(42)(43)(44), all macromolecules can be classified as self-extinguishing polymer NCs.…”

Section: Thermal Propertiesmentioning

confidence: 99%

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NANOPARTICLES DISPERSION IN PROCESSING NANOSTRUCTURE CHIRAL POLY(AMIDE-IMIDE)S BASED ON 7V-TRIMELLITYLIMIDO-Z,-LEUCINE/TiO2 NANOCOMPOSITES: ALLOCATION AND PROPERTIES

Mallakpour

Khani

2013

J. Chil. Chem. Soc.

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Poly(amide-imide)s (PAI)s as engineering materials have received more attention owing to their high thermal and chemical stability. Therefore, organic/ inorganic nanocomposite (NC) of these materials has been widely studied in the last few decades. Here, we present PAI-NCs preparation containing surface modified TiO 2 nanoparticles (NP)s by employing silane coupling agent under ultrasonic process. Optically active nanostructure PAI was prepared from 5-(2-benzimidazole)-1,3-phenylenediamine (4) and chiral diacid monomer N-trimellitylimido-L-leucine (5) using molten salt tetrabuthylammonium bromide as an activating medium. A considerable improvement of properties can be achieved by inserting NPs into the polymer matrix. The results of field emission scanning electron microscopy and transmission electron microscopy indicated that there is a little aggregation of a large quantity of particles. Thermogravimetric analysis confirmed that the heat stability of the polymer NCs in the temperature range of 400-800 ºC was enhanced.

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Section: Thermal Propertiesmentioning

confidence: 99%

“…Thermal decomposition temperatures of PAI/TiO 2 NCs at 5 wt.% loss are above 460 °C. 42 Ebert et al investigated the effect of TiO 2 as inorganic filler in PAI membranes on various permeation processes. Furthermore, PAI membranes with 40 wt.% TiO 2 could endure a temperature treatment at 180 o C with only minor decrease in fluxes.…”

Section: Introductionmentioning

confidence: 99%

NANOPARTICLES DISPERSION IN PROCESSING NANOSTRUCTURE CHIRAL POLY(AMIDE-IMIDE)S BASED ON 7V-TRIMELLITYLIMIDO-Z,-LEUCINE/TiO2 NANOCOMPOSITES: ALLOCATION AND PROPERTIES

Mallakpour

Khani

2013

J. Chil. Chem. Soc.

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“…From then on, more and more deposition techniques and methods have been created to improve the comprehensive properties of the DLC films during the past fourty years. Currently, the DLC films are mainly fabricated by the following methods, such as magnetron sputtering (MS) [5,6], pulsed laser ablation (PLA) [7,8], ion beam deposition (IBD) [9,10], and cathode vacuum arc evaporation (CVAE) [11,12]. And the composition, structure and performance are varied with different deposition methods.…”

Section: Introductionmentioning

confidence: 99%

Growth Feature of Diamond-Like Carbon Films by Various Vacuum Plasma Methods

Wang¹,

Bin²,

Liu³

et al. 2017

Proceedings of the 3rd Annual International Conference on Mechanics and Mechanical Engineering (MME 2016)

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Abstract. Diamond-like carbon (DLC) films were prepared on silicon substrate using four different vacuum plasma methods: magnetron sputtering (MS), pulse laser ablation (PLA), ion beam deposition (IBD) and pulse cathode vacuum arc evaporation (CVAE). The microstructure, surface morphology and optical properties of the DLC films were investigated by Raman spectroscopy, atomic force microscope (AFM) and UV-visible spectrophotometer. The results showed that the films prepared by different vacuum plasma methods varied in the microstructure. The film prepared by CVAE possessed the smallest grain size of graphite with the highest disordering of Csp2 clusters, while more disordered Csp2 clusters presented in the DLC film due to the high ions energy density during PLA. Meanwhile, the deposition methods mainly affected the size of particles and roughness of the DLC films under the same thickness. The film by PLA shows a quite smooth surface structure with uniform particle size. In terms of the optical properties, the films prepared by magnetron sputtering expressed the best optical performance among the four vacuum plasma methods.

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“…Among the vast variety of organic polymers and inorganic nanoparticles, the exceptional situations belong to the polyimides (PIs) and titanium dioxide (titania) due to the multi-functional characteristics of both components [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

“…PIs as the engineering polymers are known by the superior thermal and chemical resistances, low thermal expansion coefficient, and excellent mechanical properties which make them promising materials for the fabrication of advanced polymer-matrix nanocomposites [3][4][5][6][7][8]. Despite the favorable properties of PIs, generally they suffer low processabilities due to the limited solubility and/or high melting or softening temperatures [3].…”

Section: Introductionmentioning

confidence: 99%

Well-dispersed polyimide/TiO2 nanocomposites: in situ sol–gel fabrication and morphological study

Seyedjamali

Pirisedigh

2012

Colloid Polym Sci

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In the presented study, 3,5-diamino-N-(4-methyl-1-oxo-1-(phenylamino)pentan-2-yl)benzamide (V) as a new diamine monomer is synthesized and fully characterized by means of FT-IR, 1 H-NMR, 13 C-NMR, and elemental analysis techniques. The stated diamine is used for the sol-gel fabrication of a series of polyimide (PI)/titania nanohybrid films with various titania percentages. The special design of diamine monomer containing bulky pendant group increased the flexibility of resulted PI matrixes. On the other hand, the ability to construct strong organic/inorganic Hbond lattice has led to the effective surrounding of nanoparticles by PI grounds and thus the well-dispersed quite spherical nanoparticles were created via a sol-gel procedure. The obtained nanocomposites showed high thermal stability and UV-vis absorption efficiency. The X-ray diffraction experiments confirmed the titania nanoparticles to be amorphous.

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Preparation and characteristics of poly(amide–imide)/titania nanocomposite thin films

Cited by 39 publications

References 18 publications

NANOPARTICLES DISPERSION IN PROCESSING NANOSTRUCTURE CHIRAL POLY(AMIDE-IMIDE)S BASED ON 7V-TRIMELLITYLIMIDO-Z,-LEUCINE/TiO2 NANOCOMPOSITES: ALLOCATION AND PROPERTIES

NANOPARTICLES DISPERSION IN PROCESSING NANOSTRUCTURE CHIRAL POLY(AMIDE-IMIDE)S BASED ON 7V-TRIMELLITYLIMIDO-Z,-LEUCINE/TiO2 NANOCOMPOSITES: ALLOCATION AND PROPERTIES

Growth Feature of Diamond-Like Carbon Films by Various Vacuum Plasma Methods

Well-dispersed polyimide/TiO2 nanocomposites: in situ sol–gel fabrication and morphological study

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