Curing behavior and thermal mechanical properties of cyanate ester blends

Koh, Henry C. Y.; Dai, Jie; Tan, Eileen

doi:10.1002/app.24831

Cited by 23 publications

(18 citation statements)

References 16 publications

(13 reference statements)

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“…When waste plastics produced form BPA are buried in a landfill, a hydrolytic or leaching process may occur to release BPA to the leachate. [14][15][16] Recently the bisphenol derivatives such as bisphenol B (BPB), 17 bisphenol C (BPC), [18][19][20][21] bisphenol E (BPE), 22,23 bisphenol F (BPF), [24][25][26] bisphenol O (BPO), 27 bisphenol S (BPS), [28][29][30] bisphenol T (BPT), 31,32 and bisphenol Z (BPZ) 33,34 shown in Figure 1 have come into wide use for synthesis of specialized epoxy and polycarbonate resins with more high-performance compared with ordinary ones. Although these bisphenol derivatives have two phenol groups in common, the chemical structure between phenol groups is different.…”

Section: Introductionmentioning

confidence: 99%

Use of chitosan for removal of bisphenol A and bisphenol derivatives through tyrosinase‐catalyzed quinone oxidation

Suzuki¹,

Sugiyama²,

Musashi³

et al. 2010

J of Applied Polymer Sci

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In this study, the availability of chitosan was systematically investigated for removal of bisphenol A (BPA, 2,2-bis(hydroxyphenyl)propane) through the tyrosinase-catalyzed quinone oxidation and subsequent quinone adsorption on chitosan beads. In particular, the process parameters, such as the hydrogen peroxide (H 2 O 2 )-to-BPA ratio, pH value, temperature, and tyrosinase dose, were discussed in detail for the enzymatic quinone oxidation. Tyrosinase-catalyzed quinone oxidation of BPA was effectively enhanced by adding H 2 O 2 and the optimum conditions for BPA at 0.3 mM were determined to be pH 7.0 and 40 C in the presence of H 2 O 2 at 0.3 mM ([H 2 O 2 ]/[BPA] ¼ 1.0). Removal of BPA from aqueous solutions was accomplished by adsorption of enzymatically generated quinone derivatives on chitosan beads. The use of chitosan in the form of beads was found to be more effective because heterogeneous removal of BPA with chitosan beads was much faster than homogeneous removal of BPA with chitosan solutions, and the removal efficiency was enhanced by increasing the amount of chitosan beads dispersed in the BPA solutions and BPA was completely removed by quinone adsorption in the presence of chitosan beads more than 0.10 cm 3 /cm 3 . In addition, a variety of bisphenol derivatives were completely or effectively removed by the procedure constructed in this study, although the enzyme dose or the amount of chitosan beads was further increased as necessary for some of the bisphenol derivatives used.

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Section: Introductionmentioning

confidence: 99%

Use of chitosan for removal of bisphenol A and bisphenol derivatives through tyrosinase‐catalyzed quinone oxidation

Suzuki¹,

Sugiyama²,

Musashi³

et al. 2010

J of Applied Polymer Sci

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show abstract

“…4). Specifically, with the progress of curing, the absorption peak at 2200–2300 cm −1 , attributed to the OCN group,32, 33 disappeared finally, whereas the crosslinking density of the PPO‐30/BADCy resin decreased compared with that of the BADCy‐E resin. These data not only suggested that OCN groups completely transformed into triazine rings but also indicated the existence of the reactions, as shown in paths 2 and 4 because, if only the reactions shown in paths 1 and 3 existed, the crosslinking density of the PPO‐n/BADCy system would not be smaller than that of the cured BADCy‐E resin.…”

Section: Resultsmentioning

confidence: 98%

Properties and origins of high‐performance poly(phenylene oxide)/cyanate ester resins for high‐frequency copper‐clad laminates

Gao

Liang

et al. 2011

J of Applied Polymer Sci

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A high-performance matrix is the key base for the fabrication of high-frequency copper-clad laminates. A high-performance resin system based on commercial poly(phenylene oxide) (PPO) and 2,2 0 -bis(4-cyanatophenyl) isopropylidene (BADCy), coded as PPO-n/ BADCy (where n is the weight parts of PPO per 100 weight parts of BADCy), was developed. The effect of PPO on the key properties, including the dielectric and thermal properties, water resistance, and toughness, of the cured resins was investigated extensively. The results show that PPO not only catalyzed the curing reaction of BADCy but also reacted with BADCy to form a singlephase structure. Furthermore, compared with the cured BADCy resin with 1 phr epoxy resin as a catalyst, the cured PPO-n/BADCy resins had significantly increased impact strengths and decreased dielectric constants, loss, and water resistance. The reasons behind these desirable improvements are discussed from the view of structureproperty relationships. These results suggest that the PPO-n/BADCy system has great potential to be used as a matrix for high-frequency copper-clad laminates or other advanced composites.

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“…Compared to epoxies, CEs have much improved hydro/thermal stability [55][56][57][58][59][60][61]. With T g 's in the 200 -300 °C range, not even the highest temperature epoxy formulation can compare [54].…”

Section: Cyanate Estersmentioning

confidence: 99%

“…CEs also have a low water absorptivity [50,55,61,63] and good adhesion to a variety of substrates [54,55,58,61].…”

Section: Cyanate Estersmentioning

confidence: 99%

Evaluation of bisphenol E cyanate ester for the resin-injection repair of advanced composites

Lio

2009

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Curing behavior and thermal mechanical properties of cyanate ester blends

Cited by 23 publications

References 16 publications

Use of chitosan for removal of bisphenol A and bisphenol derivatives through tyrosinase‐catalyzed quinone oxidation

Use of chitosan for removal of bisphenol A and bisphenol derivatives through tyrosinase‐catalyzed quinone oxidation

Properties and origins of high‐performance poly(phenylene oxide)/cyanate ester resins for high‐frequency copper‐clad laminates

Evaluation of bisphenol E cyanate ester for the resin-injection repair of advanced composites

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