Phenylethynyl and Phenol End-Capping Studies of Polybiphenyloxydiphenylsilanes for Cross-Linking and Enhanced Thermal Stability

Drake, Kerry; Mukherjee, Indraneil; Mirza, Khalid B.; Ji, Hai‐Feng; Wei, Yen

doi:10.1021/ma200099x

Cited by 18 publications

(18 citation statements)

References 27 publications

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“…Growth in the aerospace, marine and microelectronic industries increasingly requires the development of heat-resistant materials. [1][2][3][4][5][6][7][8] Phthalonitrile (PN)-based resins, as a class of heat-resistant materials, have sparked great interest and attention, due to their unique properties, including outstanding thermal stability, great flame retardancy, low moisture resistance and excellent mechanical properties. [9][10][11][12][13][14] A factor that has impeded the application of neat PNs is their fairly sluggish curing condition.…”

Section: Introductionmentioning

confidence: 99%

Branched phenyl‐s‐triazine moieties to enhance thermal properties of phthalonitrile thermosets

Zong

et al. 2017

Polymer International

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Heat‐resistant materials have made tremendous progress in marine, aerospace and microelectronic fields. Herein, a new class of phthalonitrile resins, branched poly(biphenyl ether triphenyl‐s‐triazine) phthalonitriles, were successfully synthesized via a two‐step, one‐pot reaction, on the basis of 2,4,6‐tris(4‐fluorophenyl)‐1,3,5‐triazine and 4,4′‐biphenol. 4,4′‐Diaminodiphenylsulfone was employed to facilitate the curing reaction, and successful realization of curing behavior was concluded from rheological and differential scanning calorimetric studies, indicating the obtained resins possess favorable processability. The relationship between concentration of reactants and properties of the resins was systematically studied. After thermal curing, the E‐glass fiber‐reinforced composite, prepared with a concentration of reactants of 0.15 g mL−1, shows an admirable glass transition temperature of 480 °C and commendable thermal stability with 5% weight loss temperature in nitrogen of 563 °C, suggesting that the improvement of the thermal properties stems from the branched structure and the phenyl‐s‐triazine units. © 2017 Society of Chemical Industry

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Section: Introductionmentioning

confidence: 99%

Branched phenyl‐s‐triazine moieties to enhance thermal properties of phthalonitrile thermosets

Zong

et al. 2017

Polymer International

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“…Increasing DCP content to 8 wt%, the corresponding values were raised to 115.35, 118.44, and 122.19°C, respectively. This phenomenon indicated that DCP could promote PBS crosslinking reaction initial temperature, the more DCP content, the higher the initial temperature 32 . In the meantime, the PBS crosslinking reaction's enthalpy values (Δ H ) also increased with DCP content increasing.…”

Section: Resultsmentioning

confidence: 90%

“…For the sample of A1 (4 wt% DCP), its initial temperature (T onset ), highest temperature (T peak ), and ending temperature perature, the more DCP content, the higher the initial temperature. 32 In the meantime, the PBS crosslinking reaction's enthalpy values (ΔH) also increased with DCP content increasing. When DCP content was 4 wt%, the enthalpy value was 35.11 J/g; when DCP content increased to 8 wt%, the corresponding enthalpy value was increased to 69.64 J/g, higher enthalpy value indicated the higher crosslinking degree of PBS.…”

Section: T a B L E 1 Components Of The Samples Used In This Manuscriptmentioning

confidence: 96%

Effects of dicumyl peroxide on cross‐linking pure poly(butylene succinate) foaming materials for high expansion and high mechanical strength

Xia

Wang

Jiang

et al. 2022

Polymers for Advanced Techs

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This paper fabricated the cross‐linking poly(butylene succinate) foaming materials with high expansion ratio, high mechanical strength, and high degradation rate though cross‐linking and molding compression methods. With dicumyl peroxide content increasing, complex viscosity, and storage modulus appear to increase tendency. The properties of cell size, distribution, mechanical properties, and thermal conductivity all appear the first increasing and then decreasing trend with dicumyl peroxide content increasing. When dicumyl peroxide concentration is 6 wt% and azodicarbonamide concentration is 1 wt%, pure cross‐linking poly(butylene succinate) foaming material's expansion ratio and compression strength could reach 7.03 and 5.61 MPa, respectively. In addition, this pure cross‐linking poly(butylene succinate) foaming material has high degradability, and the degradation ratio could get 80% in alkaline aqueous solution.

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“…High-temperature cross-linkable polymers and oligomers containing reactive functionalities such as acetylene, 26 benzocyclobutene, 27 and epoxide 28 have been widely investigated. Benzocyclobutene (BCB) group, which yields BCBbased polymers as a new generation of high-performance materials, 29,30 has demonstrated many advantages over most latent reactive groups, such as free of catalyst, initiator and gaseous by-products, and nonpolar chemical character.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and properties of cross-linkable polysiloxane via incorporating benzocyclobutene

Yang

Cao

Huang

et al. 2014

High Performance Polymers

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Benzocyclobutene (BCB), as a reactive group, was incorporated into the side chains of polysiloxane via platinum/carbon hydrosilylation reaction. The hydrosilylation reaction showed good tunability for the incorporation ratio of BCB pendant groups. Differential scanning calorimetry results revealed that upon heating the BCB-containing polysiloxanes, great exothermic reaction occurred via [4þ2] cycloaddtion reaction involving vinyl and BCB. The onset decomposition temperature (T donset ) of the BCB-siloxane resins reaches 518 C. This high T d demonstrates an excellent thermal resistance. The high-temperature performance of the resulting polymers illustrates the power of benzocyclobutene pendant groups in the design and preparation of potential high-performance silicon resins.

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Phenylethynyl and Phenol End-Capping Studies of Polybiphenyloxydiphenylsilanes for Cross-Linking and Enhanced Thermal Stability

Cited by 18 publications

References 27 publications

Branched phenyl‐s‐triazine moieties to enhance thermal properties of phthalonitrile thermosets

Branched phenyl‐s‐triazine moieties to enhance thermal properties of phthalonitrile thermosets

Effects of dicumyl peroxide on cross‐linking pure poly(butylene succinate) foaming materials for high expansion and high mechanical strength

Synthesis and properties of cross-linkable polysiloxane via incorporating benzocyclobutene

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