Dynamic mechanical analysis on modified bismaleimide resins

Cristea, Mariana; Găină, Constantin; Ionita, Daniela; Gaina, Viorica

doi:10.1007/s10973-007-8802-4

Cited by 12 publications

(5 citation statements)

References 35 publications

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“…The reaction between amino groups and BMI has been certified by some researchers. 35,36 Bonnaud's group 37 and Li's group 19 proved that amines can also react with PEI through the mechanism shown in Figure S3 in the Supporting Information. However, it is still necessary to evaluate the possibility of the reaction between PEI and AHBSi because the reactivity of an active group in a hyperbranched polymer may be different from that in a compound.…”

Section: Resultsmentioning

confidence: 99%

High Performance Miscible Polyetherimide/Bismaleimide Resins with Simultaneously Improved Integrated Properties Based on a Novel Hyperbranched Polysiloxane Having a High Degree of Branching

Sun

Liang

et al. 2013

Ind. Eng. Chem. Res.

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Amino-terminated hyperbranched polysiloxane (AHBSi) with high degree of branching (= 0.8) was synthesized by a control hydrolysis of γ-aminopropyl triethoxysilane (APTES) without using any catalyst. Besides, AHBSi was used as the compatibilizer of the miscible polyetherimide (PEI)/bismaleimide (BD) blend, and the influence of the content of AHBSi on the compatibility and integrated performance of the PEI/BD blend was systematically investigated. The corresponding investigation of the APTES/PEI/BD system was also carried out for comparison. Results show that although AHBSi and APTES have similar chemical segments, their different topological structures endow them with completely different effects. AHBSi can remarkably improve the compatibility between PEI and BD resin, and the AHBSi/PEI/BD system not only has obviously improved toughness and decreased brittleness while maintaining good stiffness. It also exhibits decreased dielectric constant and loss. Conversely, the APTES/PEI/BD system has greatly deteriorated compatibility and integrated performance. These interesting results demonstrate that AHBSi is a super multifunctional compatibilizer.

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Section: Resultsmentioning

confidence: 99%

High Performance Miscible Polyetherimide/Bismaleimide Resins with Simultaneously Improved Integrated Properties Based on a Novel Hyperbranched Polysiloxane Having a High Degree of Branching

Sun

Liang

et al. 2013

Ind. Eng. Chem. Res.

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“…4,4!-Dibenzyldiisocyanate (DBDI) (Savinesti, Romania) was purified before use by recrystallization from anhydrous cyclohexane (mp = 89-90°C), 4,4!-bismaleimido-diphenylmethane (A) was synthesized from 4,4!-diaminodiphenylmethane and maleic anhydride in a two-step method described in the literature [43] and recrystallized from toluene (mp = 158-159°C). The oligoether urethane bismaleimide (B) was synthesized from Terathane-650 and 4-maleimidophenyl isocyanate by the method described in the literature [41].…”

Section: Reagents and Materialsmentioning

confidence: 99%

Thermally reversible cross-linked poly(ether-urethane)s

Găină¹,

Ursache²,

Gaina³

et al. 2013

Express Polym. Lett.

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Abstract. Cross-linked poly(ether-urethane)s were prepared by Diels-Alder (DA) reaction of the furan-containing poly(ether-urethane) to bismaleimides and showed thermal reversibility evidenced by differential scanning calorimetry and attenuated total reflectance in conjunction with Fourier transform infrared spectroscopy (ATR-FTIR). The furan-containing poly(ether-urethane)s were synthesized by the polyaddition reaction of 1,6-hexamethylene diisocyanate (HMDI) or 4,4!-dibenzyl diisocyanate (DBDI) to poly(tetramethylene ether) glycol (PTMEG having M n = 250, 650, 1000, 1500 and 2000) and 2-[N,N-bis(2-methyl-2-hydroxyethyl)amino]furfuryl as chain extender by the solution prepolymer method. The molar ratio of isocyanate: PTMEG:chain extender varied from 2:1:1 to 4:1:3, which produces a molar concentration of furyl group ranging between 3.65·10 -4 and 1.25·10 -3 mol/g.

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“…Hence, composites of Bismaleimide are getting attention because of their excellent thermal properties and low cost‐to‐performance ratio. Their processability is as easy as that of epoxy resins but performance is much better . To the best of our knowledge, no studies on the creep behavior of Bismaleimide nanocomposites have been reported yet.…”

Section: Introductionmentioning

confidence: 99%

Characterization and modeling of creep behavior of a thermoset nanocomposite

et al. 2014

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In this article, we report creep and recovery behavior of nanocomposites based on a high‐temperature‐resistant thermosetting matrix. Nanocomposites with up to 2 wt% of organically modified clay were prepared. The creep and recovery behavior was investigated under various stress levels and at various temperatures. Creep behavior was modeled by a modified Burgers model by introducing a stretched exponential function. This stretched Burgers model satisfactorily describes the creep behavior of the matrix and nanocomposites. The role of filler on the system dynamics has been also discussed and an interesting finding discovered from the stretched Burgers model results. The model results suggest that the dynamics of the filled system is independent of the filler, which is scientifically quite interesting in the field of nanocomposites. The multiple cycle creep and recovery behavior of the matrix were also investigated and the Boltzmann superposition principle was applied to describe the multistep loading creep response. POLYM. COMPOS., 36:322–329, 2015. © 2014 Society of Plastics Engineers

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Dynamic mechanical analysis on modified bismaleimide resins

Cited by 12 publications

References 35 publications

High Performance Miscible Polyetherimide/Bismaleimide Resins with Simultaneously Improved Integrated Properties Based on a Novel Hyperbranched Polysiloxane Having a High Degree of Branching

High Performance Miscible Polyetherimide/Bismaleimide Resins with Simultaneously Improved Integrated Properties Based on a Novel Hyperbranched Polysiloxane Having a High Degree of Branching

Thermally reversible cross-linked poly(ether-urethane)s

Characterization and modeling of creep behavior of a thermoset nanocomposite

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