Poly(2,6-dimethyl-1,4-phenylene ether) PPO®) capping and its significance in the preparation of PPO®/epoxy laminate

Chao, Herbert S. I.; Whalen, Jana M.

doi:10.1002/(sici)1097-4628(19960118)59:3<473::aid-app12>3.0.co;2-v

Cited by 16 publications

(3 citation statements)

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“…Poly(2,6‐dimethyl‐1,4‐phenylene oxide) (PPO) has excellent physical properties, including excellent mechanical properties, high dimensional stability, low moisture uptake, high thermal stability, low flammability, and exceptional electrical properties, including a low dielectric constant and a low dielectric dissipation factor. In view of these characteristics, PPO would be an excellent candidate as a material for high‐frequency substrates 6–10…”

Section: Introductionmentioning

confidence: 99%

Synthesis and physical properties of low‐molecular‐weight redistributed poly(2,6‐dimethyl‐1,4‐phenylene oxide) for epoxy resin

Hwang

Hsu

Wang

2008

J of Applied Polymer Sci

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Low-molecular-weight poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) was prepared by the redistribution of regular PPO with 4,4 0 -isopropylidenediphenol (bisphenol A) with benzoyl peroxide as an initiator in toluene. The redistributed PPO was characterized by proton nuclear magnetic resonance, mass spectra, and Fourier transform infrared spectroscopy. The redistributed PPO oligomers with terminal phenolic hydroxyl groups and low molecular weights (weight-average molecular weight ¼ 800-4000) were used in the modification of a diglycidyl ether of bisphenol A/4,4 0 -diaminodiphenylmethane network system. The curing behaviors were investigated by differential scanning calorimetry and Fourier transform infrared spectroscopy. The effect of molecular weight and the amount of redistributed PPO oligomers incorporated into the network on the physical properties of the resulting systems were investigated. The thermal properties of the cured redistributed PPO/epoxy resins were studied by dynamic mechanical analysis, thermal mechanical analysis, thermogravimetric analysis, and dielectric analysis. These cured redistributed PPO/epoxy resins exhibited lower dielectric constants, dissipation factors, coefficients of thermal expansion, and moisture absorptions than those of the control diglycidyl ether of bisphenol A based epoxy. The effects of the composition on the glass-transition temperature and thermal stability are discussed.

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Section: Introductionmentioning

confidence: 99%

Synthesis and physical properties of low‐molecular‐weight redistributed poly(2,6‐dimethyl‐1,4‐phenylene oxide) for epoxy resin

Hwang

Hsu

Wang

2008

J of Applied Polymer Sci

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“…Among the available polymers, polyphenylene oxide (PPO) has great potential since it has a highly rigid skeleton structure with aromatic rings, without hydrolysable groups or polar side groups. These structural characteristics endow PPO with excellent hydrolytic stability, low moisture absorption, high thermal stability, and excellent electrical properties in a wide temperature range [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Effects of Peroxide Initiator on the Structure and Properties of Ultralow Loss Thermosetting Polyphenylene Oxide-Based Composite

Fang

Liu³

et al. 2022

Polymers

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Although thermosetting polyphenylene oxide- (PPO) based composites with excellent dielectric properties have been widely accepted as superior resin matrices of high-performance copper clad laminate (CCL) for 5G network devices, there has been limited information regarding the composition–process–structure–property relationships of the systems. In this work, the effects of peroxide initiator concentration on the structure and dielectric properties of a free radical cured ultralow loss PPO/Triallyl isocyanate (TAIC) composite system were studied. As expected, the glass transition temperature (Tg) and storage modulus increased with the advancing of crosslinking, whereas the dielectric loss showed an “abnormal” rise with the increase in crosslink density. Extensive studies were carried out by varying the initiator contents and characterizing the structure with spectroscopy, thermal analysis, and positron annihilation lifetime spectrum (PALS) techniques. The results show that the competition of polarity, crosslink density, free volume, and free TAIC are the key factors determining the dielectric properties of the composites.

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“…Hyperbranched polymers are considered as a kind of promising alternative modifiers for high‐performance thermosets because of their unique structure and desirable properties including high solubility, low viscosity, and big reactivity compared to their linear analogues 10, 11. Hyperbranched poly(phenylene oxide) (HBPPO) is expected to inherit not only the outstanding integrated properties of linear poly(phenylene oxide) such as high thermal stability, good mechanical properties, low moisture uptake, and very good dielectric properties (low dielectric constant and loss), but also that of hyperbranched polymers 12–14…”

Section: Introductionmentioning

confidence: 99%

Curing behavior and dielectric properties of hyperbranched poly(phenylene oxide)/cyanate ester resins

Huang

Liang

et al. 2011

J of Applied Polymer Sci

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A novel hyperbranched poly(phenylene oxide) (HBPPO) modified 2,2 0 -bis(4-cyanatophenyl) isopropylidene (BCE) resin system with significantly reduced curing temperature and outstanding dielectric properties was developed, and the effect of the content of HBPPO on the curing behavior and dielectric properties as well as their origins was thoroughly investigated. Results show that BCE/HBPPO has significantly lower curing temperature than BCE owing to the different curing mechanisms between the two systems, the difference also brings different crosslinked networks and thus dielectric properties. The dielectric properties are frequency and temperature dependence, which are closely related with the content of HBPPO in the BCE/HBPPO system. BCE/2.5 HBPPO and BCE/5 HBPPO resins have lower dielectric constant than BCE resin over the whole frequency range tested, while BCE/10 HBPPO resin exhibits higher dielectric constant than BCE resin in the low frequency range (<10 4 Hz) at 200 C. At 150 C or higher temperature, the dielectric loss at the frequency lower than 10 2 Hz becomes sensitive to the content of HBPPO. These phenomena can be attributed to the molecular relaxation. Two relaxation processes (a-and b-relaxation processes) are observed. The b-relaxation process shifts toward higher frequency with the increase of temperature because of the polymer structure and chain flexibility; the a-relaxation process appears at high temperature resulting from the chain-mobility effects.

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Poly(2,6-dimethyl-1,4-phenylene ether) PPO®) capping and its significance in the preparation of PPO®/epoxy laminate

Cited by 16 publications

References 0 publications

Synthesis and physical properties of low‐molecular‐weight redistributed poly(2,6‐dimethyl‐1,4‐phenylene oxide) for epoxy resin

Synthesis and physical properties of low‐molecular‐weight redistributed poly(2,6‐dimethyl‐1,4‐phenylene oxide) for epoxy resin

Effects of Peroxide Initiator on the Structure and Properties of Ultralow Loss Thermosetting Polyphenylene Oxide-Based Composite

Curing behavior and dielectric properties of hyperbranched poly(phenylene oxide)/cyanate ester resins

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