Magnetic and Heat Resistant Poly(imide-ether) Nanocomposites Derived from Methyl Rich 9<italic style="font-style: italic">H</italic>-xanthene: Synthesis and Characterization

Khalil Faghihi; Hassan Moghanian; Fatemeh Mozafari; Meisam Shabanian

doi:10.1007/s10118-018-2094-y

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Magnetic and Heat Resistant Poly(imide-ether) Nanocomposites Derived from Methyl Rich 9H-xanthene: Synthesis and Characterization

ARTICLE | Updated：2021-02-18

- Magnetic and Heat Resistant Poly(imide-ether) Nanocomposites Derived from Methyl Rich 9H-xanthene: Synthesis and Characterization
- Chinese Journal of Polymer Science Vol. 36, Issue 7, Pages: 822-834(2018)
- Affiliations：
  
  a.Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, Arak University, 38156-8-8349 Arak, Iran
  b.Department of Chemistry, Dezful Branch, Islamic Azad University, Dezful, Iran
  c.Faculty of Chemistry and Petrochemical Engineering, Standard Research Institute (SRI), P.O. Box 31745-139, Karaj, Iran
- Author bio：
  
  moghanian@gmail.com
- Funds：
- DOI：10.1007/s10118-018-2094-y
  CLC：
- Received：25 August 2017，
  
  Accepted：20 November 2017，
  
  Online First：02 March 2018，
  
  Published：2018-07
- Accepted：
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Khalil Faghihi, Hassan Moghanian, Fatemeh Mozafari, et al. Magnetic and Heat Resistant Poly(imide-ether) Nanocomposites Derived from Methyl Rich 9H-xanthene: Synthesis and Characterization[J]. Chinese Journal of Polymer Science, 2018, 36(7): 822-834. DOI: 10.1007/s10118-018-2094-y.
DOI：

Khalil Faghihi, Hassan Moghanian, Fatemeh Mozafari, et al. Magnetic and Heat Resistant Poly(imide-ether) Nanocomposites Derived from Methyl Rich 9H-xanthene: Synthesis and Characterization[J]. Chinese Journal of Polymer Science, 2018, 36(7): 822-834. DOI: 10.1007/s10118-018-2094-y. DOI：

摘要

Abstract

In this study a new series of magnetic and heat resistant nanocomposites were prepared based on a highly soluble poly(imide-ether) (PIE) reinforced with two different types of magnetic nanoparticles

via

a solution intercalation technique. New PIE with good solubility and desired molar mass containing bulky xanthene rings and amide groups in the side chains was synthesized

via

thermal cyclization of the poly(amic acid) precursor

obtained from the reaction of a new diamine derived from 9

-xanthene and 4

4′-oxydiphthalic dianhydride (ODPA). Improved solubility was attributed to the presence of xanthene group and flexible ether linkage in the polyimide backbones that reduce the chain-chain interaction and enhance solubility by penetrating solvent molecules into the polyimide chains. Fe

nanoparticles (MNPs) which synthesized from chemical co-precipitation route were coated with silica (SiO

)

sequentially with (3-aminopropyl)triethoxysilane and poly-melamine-terephthaldehyde (MNPs-PMT)

and then separately dispersed in the poly(amic acid) solutions and thermally imidized to form PIE/Fe

and PIE/MNPs-PMT nanocomposites. The nanostructures and properties of the resultant materials were investigated using FTIR spectroscopy

X-ray diffraction (XRD)

field emission scanning electron microscopy (FE-SEM)

transmission electron microscopy (TEM)

vibrating sample magnetometer (VSM)

thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC). The properties of the nanocomposites were strongly related to the dispersion and interaction between the nanoparticles and PIE matrix. The thermogravimetric analysis (TGA) results showed that the addition of MNPs-PMT nanoparticles resulted in a substantial increase in the thermal stability of the corresponding PIEN. The temperature at 10% weight loss (

) was increased from 416 °C to 428 °C for PIEN containing 3 wt% MNPs-PMT as compared to neat PIE

as well the char yield enhanced. Furthermore

the MNPs-PMT nanoparticles had better dispersion in the polymer matrix due to the strong intermolecular hydrogen bond interactions between the NH and C＝N groups of surface-modified nanoparticles and the PIE matrix than the uncoated Fe

nanoparticles

and exhibited a better intercalated morphology and improved thermal properties. Also

the PIEN nanocomposites under applied magnetic field exhibited the hysteretic loops of the superparamagnetic nature.

关键词

Keywords

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⁰

Magnetic and Heat Resistant Poly(imide-ether) Nanocomposites Derived from Methyl Rich 9H-xanthene: Synthesis and Characterization

DOI：10.1007/s10118-018-2094-y

摘要

Abstract

关键词

Keywords

references