Structural and dielectric properties of POSS reinforced polyimide nanocomposites

Bi̇rtane, Hati̇ce; Esmer, Kadir; Madakbaş, Seyfullah; Kahraman, Memet Vezi̇r

doi:10.1080/10601325.2019.1565546

Cited by 20 publications

(11 citation statements)

References 27 publications

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“…This is due to the existence of the rigid three‐dimensional cage structure of POSS and the strong covalent bond of the Si‐O‐Si skeleton of POSS, which enhance the thermal stability of the composites. [ 45,46 ]…”

Section: Resultsmentioning

confidence: 99%

“…This is due to the existence of the rigid 3D cage structure of POSS and the strong covalent bond of the Si-O-Si skeleton of POSS, which could restrict the movement of the molecular chain and increase the rigidity of the polymer, resulting in a lower CTE value. [46,48]…”

Section: Thermal Properties Of Pi Compositesmentioning

confidence: 99%

“…This is due to the existence of the rigid three-dimensional cage structure of POSS and the strong covalent bond of the Si-O-Si skeleton of POSS, which enhance the thermal stability of the composites. [45,46] The DSC and CTE curves of PI composites with different MCM-41@POSS fractions are presented in Figure 3c,f. Table 2 shows the glass transition temperature (T g ) and the average CTE calculated between 50 and 250 °C.…”

Section: Thermal Properties Of Pi Compositesmentioning

confidence: 99%

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Achieving Hydrophobic Ultralow Dielectric Constant Polyimide Composites: Combined Efforts of Fluorination and Porous Fillers

Zhao

et al. 2022

Macro Materials & Eng

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The advancement of the microelectronics industry necessitates the use of interlayer insulation materials with low dielectric constants and high mechanical properties. In this paper, a new type of copolymerized fluorinated polyimide (PI) is synthesized, and mixed with polyhedral oligomeric silsesquioxane (POSS) functionalized mesoporous silica (MCM-41@POSS). The PI/MCM-41@POSS composites exhibit good hydrophobicity. With the addition of 3 wt% MCM-41@POSS, the PI composite attained an ultralow dielectric constant (k = 1.88) and low dielectric loss (0.01) at 1 MHz, which is attributed to the mesoporous structure of MCM-41 and the restriction of polarization in the bonded region. The decorated POSS effectively prevents the penetration of PI molecular chains into the mesopores of MCM-41. In addition, the PI composites containing 3 wt% of MCM-41@POSS obtain the highest maximum stress of 104.03 MPa with an elongation at break of 13.73%. The hydrophobic PI composites with ultralow-k are expected to be good candidates as interlayer materials in microelectronics devices.

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Section: Resultsmentioning

confidence: 99%

Section: Thermal Properties Of Pi Compositesmentioning

confidence: 99%

Section: Thermal Properties Of Pi Compositesmentioning

confidence: 99%

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Achieving Hydrophobic Ultralow Dielectric Constant Polyimide Composites: Combined Efforts of Fluorination and Porous Fillers

Zhao

et al. 2022

Macro Materials & Eng

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“…The SEM images ( Figure 6 c) surmise the conductivity enhancement concept with homogenous dispersion of POSS-MMT in the matrix. However, UP/POSS-MMT-5 demonstrates a steady decline in conductivity due to the agglomeration of POSS-MMT above the critical concentration [ 59 ]. The irregular dispersion of nanofillers has emanated the reducing of conductivity, nevertheless impacting the comprehensive conductivity of polymer.…”

Section: Resultsmentioning

confidence: 99%

Effect of POSS-Modified Montmorillonite on Thermal, Mechanical, and Electrical Properties of Unsaturated Polyester Nanocomposites

et al. 2020

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Montmorillonite (MMT) displays excellent cohesion with an unsaturated polyester (UP) matrix to generate a material which exhibits an extensive range of commercial applications. The organic modification of MMT using polyhedral oligomeric silsesquioxanes (POSS) and the effect of POSS-MMT on the thermal, mechanical, and electrical properties of UP are reported here. Transmission electron microscopy (TEM) images were used to characterize the modification of MMT using POSS. Modified MMT (POSS-MMT) was incorporated, at different wt.% (0.5, 1, 3, 5), into UP via in-situ polymerization. The presence of POSS-MMT enhanced the characteristic properties of UP as a consequence of good dispersion in the polymer matrix. Scanning electron microscopy (SEM) images support effective POSS-MMT dispersion leading to tensile strength enhancement of a UP/POSS-MMT nanocomposite (3 wt.% POSS-MMT) by 54.7% as compared to that for unmodified UP. TGA displays a 35 °C improvement of thermal stability (10% mass loss) at 5% POSS-MMT incorporation, while the electrical conductivity is improved by 108 S/m (3 wt.% POSS-MMT) in comparison to that for unmodified UP. The conventional obstacle of UP associated with shrinkage weight loss during curing seems to be moderated with POSS-MMT incorporation (3%) resulting in a 27.8% reduction in shrinkage weight loss. These fabricated nanocomposites expand the versatility of UP as a high-performance material owing to enhancements of properties.

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“…Moreover, MOFs also have a good application prospect in the integrated circuit industry with potential low‐dielectric properties 17–18 . Therefore, many researchers attempted to use MOFs as a kind of inorganic nano‐filler to prepare nanocomposites with excellent comprehensive properties 19–24 …”

Section: Introductionmentioning

confidence: 99%

A novel nanocomposite of NH₂‐MIL‐125 modified bismaleimide‐triazine resin with excellent dielectric properties

Liu

et al. 2021

J of Applied Polymer Sci

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The NH2‐MIL‐125 nanoparticles of amino‐functionalized titanium‐based metal organic frameworks were prepared by the solvothermal method and their nanocomposites with bismaleimide‐triazine resin (BT resin) were prepared. The research results showed that NH2‐MIL‐125 could significantly catalyze the curing reaction of BT resin to form triazine rings, which was attributed to the synergistic catalysis the self‐polymerization of cyanate ester by the amino group and Ti4+ in NH2‐MIL‐125. Because of the increase of triazine ring in crosslinking structures, the initial storage modulus of NH2‐MIL/BT nanocomposites improved. But the steric hindrance of NH2‐MIL‐125 brought the decrease on the crosslinking density and the increase on the free volume of nanocomposites. Meanwhile, besides the introduction of nanopores, the formation of more triazine rings and the increase of free volume, NH2‐MIL‐125 reduced the interface charge accumulation of nanocomposites through the Michael addition reaction with bismaleimide, which contributed to the reduction of dielectric constant of nanocomposites. In addition, NH2‐MIL‐125 with good dispersion played a toughening role and also improved the thermal stability and moisture resistance of nanocomposites. In this study, NH2‐MIL‐125 not only introduced nanopores but also changed crosslinking structures of BT resin, which provided a novel approach to obtain low‐dielectric materials.

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Structural and dielectric properties of POSS reinforced polyimide nanocomposites

Cited by 20 publications

References 27 publications

Achieving Hydrophobic Ultralow Dielectric Constant Polyimide Composites: Combined Efforts of Fluorination and Porous Fillers

Achieving Hydrophobic Ultralow Dielectric Constant Polyimide Composites: Combined Efforts of Fluorination and Porous Fillers

Effect of POSS-Modified Montmorillonite on Thermal, Mechanical, and Electrical Properties of Unsaturated Polyester Nanocomposites

A novel nanocomposite of NH₂‐MIL‐125 modified bismaleimide‐triazine resin with excellent dielectric properties

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Structural and dielectric properties of POSS reinforced polyimide nanocomposites

Cited by 20 publications

References 27 publications

Achieving Hydrophobic Ultralow Dielectric Constant Polyimide Composites: Combined Efforts of Fluorination and Porous Fillers

Achieving Hydrophobic Ultralow Dielectric Constant Polyimide Composites: Combined Efforts of Fluorination and Porous Fillers

Effect of POSS-Modified Montmorillonite on Thermal, Mechanical, and Electrical Properties of Unsaturated Polyester Nanocomposites

A novel nanocomposite of NH2‐MIL‐125 modified bismaleimide‐triazine resin with excellent dielectric properties

Contact Info

Product

Resources

About

A novel nanocomposite of NH₂‐MIL‐125 modified bismaleimide‐triazine resin with excellent dielectric properties