Preparation and properties of bismaleimide resins modified with hydrogen silsesquioxane and dipropargyl ether and their composites

Huang, Farong; Huang, Farong; Du, Lei

doi:10.1038/pj.2009.335

Cited by 16 publications

(8 citation statements)

References 35 publications

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“…Similarly, the thermal index of the material also increased which could be attributed to the addition of the BMI to the UPR. The BMI‐based polymers and composites are known for their high‐temperature stability [11–13] and this has resulted in the observed increase in the thermal index as well as the activation energy.…”

Section: Resultsmentioning

confidence: 99%

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Studies on unsaturated polyester composites for high‐temperature applications

Girase¹,

Jaiswal²,

Chaudhari³

et al. 2012

Vinyl Additive Technology

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Unsaturated polyesters are widely used in a number of applications. However, they fall short in areas where high thermal stability and performance at higher temperatures are required. Previous investigations have studied the kinetics and degradation behavior of bismaleimide‐based unsaturated polyester composites. The current study aimed to investigate the effects of bismaleimide on the mechanical properties and thermal class of a bismaleimide unsaturated polyester composition. Addition of bismaleimide to the composition resulted in an increase in the thermal index of the material, thus making it useful in applications where high temperature stability is required. However, once degradation was initiated, the addition of bismaleimide had a detrimental effect on the stability of the composites. J. VINYL ADDIT. TECHNOL., 2012. © 2012 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 99%

“…There have been efforts to increase the thermal stability of the UPRs by the addition of bismaleimides (BMIs) [11, 12]. BMIs, when incorporated in polymers, are known for their ability to increase thermal performance [13, 14].…”

Section: Introductionmentioning

confidence: 99%

Studies on unsaturated polyester composites for high‐temperature applications

Girase¹,

Jaiswal²,

Chaudhari³

et al. 2012

Vinyl Additive Technology

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“…DPBM reacted with the aromatic allyl compounds [44,45,51] like diallylbisphenol A DABPA, dipropargylether of bisphenol A DPBPA and Bis (propenyl phenoxybenzophenon) BPPB via Diels Alder reaction. A recent publication [15]…”

Section: Reaction Of Dpbm With Diallybisphenol a Via Diels Alders Reamentioning

confidence: 99%

Mono- and Bis- Maleimide Resins in Preimpregnated Fibres

Horacek¹,

Puchenau²

2020

J. Res. Updates Polym. Sci.

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Fibres are preimpregnated by solutions of mono-and bis-maleimides with comonomers. Imides alone polymerize to resins with too low energies of fracture. In the presence of Methylene dianiline or Aniline Diphenylmethylenebismaleimide reacts via Michael addition to equimolar addition products. When fibres are preimpregnated with these addition compounds alone or in combination with flame retardants, B-prepregs are obtained, which after curing show high glass temperatures and sufficient energies of fracture. 2.5 moles of Diphenylmethylene bismaleimide and 1mol Methylene dianiline or 1mole Aniline react to resins with glass temperatures of 350 and 380°C and energies of fracture of 75 and 100J/m 2. The resins contain no carcinogen or blood harming free amines. A one pot reaction starting from Methylene dianiline and Maleic anhydride is possible and more economic. As polymerized bismaleimides possess their imide bonds in the side chain, they are strictly spoken no polyimides with imide bonds in the main chain. Diphenylmethylenebismaleimide and styrene as copolymer react to an insoluble crosslinked polymer. Fibres are preimpregnated with equimolar mixtures of 2-Bromophenylmaleimide and styrene. After curing laminates with 285°C glass temperature and sufficient energies of fracture are obtained. The heat resistant resins are charring polymers and display higher Limiting Oxygen Indices, when the heats of combustion are increased. Differential Scanning Calorimetry determines the temperatures and the heats of glass transition, which indicate that the glass temperature is raised, when the enthalpy is increased and the entropy reduced, which is achievable by Diphenylbismaleimide and 2-Bromophenylmaleimide with their large side groups appropriate for intermolecular forces and steric hindrance.

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“…Thermosetting materials are widely used for a myriad of applications, from everyday convenience products (e.g. adhesives, protective coatings) to advanced composites for high-tech applications in aerospace industries 1– 5 Among these materials, bismaleimides (BMIs) occupy a preponderant position owing to its high performance-to-cost ratio, excellent processability, balance of thermal and mechanical properties. 6,7 However, some properties of the conventional BMI still need to be further improved to extend its application.…”

Section: Introductionmentioning

confidence: 99%

“…To date, an effective method to enhance the high temperature performance is modifying the chemical structure of the BMI monomers, and many efforts have been made to design and synthesize a number of new chain-extended BMI monomers, such as those containing silicon, 2,14 biphenylene, 15 fluorenyl cardo groups 16 and so on. Generally, carborane-containing polymers exhibited good solubility, thermal and thermo-oxidative stability.…”

Section: Introductionmentioning

confidence: 99%

Carborane-containing bismaleimide resins with excellent heat resistance and dimensional stability

Wu¹,

Gong

Gao³

et al. 2020

High Performance Polymers

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Novel carborane-containing bismaleimides with excellent heat resistance and dimensional stability for advanced composites are presented. First, a new kind of carborane-containing mono-maleimido-terminated monomer 1-(4-tolyl)-2-(4-maleimido phenyl)- o-carborane (CB-MI) was synthesized and characterized by FT-IR and 1H-NMR. Then, it was used as a modifier for bismaleimide resin 4,4’-bismaleimidodiphenylmethane (BDM) with different weight fraction of CB-MI. The curing behavior and thermal property of the CB-MI/BDM resin systems were studied and presented here. Results displayed that a wide processing window and low curing temperature provided a good processability for the CB-MI/BDM resin system. Due to the effect of carborane groups, the char yield at 600°C of the cured resin systems tended to be increased with the addition of CB-MI. Moreover, the coefficient of thermal expansion of the resin was found to be reduced with the increase of CB-MI, indicative of a remarkable dimensional stability. This study might open up great opportunities for the preparation and design of various novel bismaleimides in a simple and feasible way and the resins with good thermal property and processability at the same time.

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Preparation and properties of bismaleimide resins modified with hydrogen silsesquioxane and dipropargyl ether and their composites

Cited by 16 publications

References 35 publications

Studies on unsaturated polyester composites for high‐temperature applications

Studies on unsaturated polyester composites for high‐temperature applications

Mono- and Bis- Maleimide Resins in Preimpregnated Fibres

Carborane-containing bismaleimide resins with excellent heat resistance and dimensional stability

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