An interpenetrated system based on a tetrafunctional epoxy resin and a thermosetting bismaleimide: Structure-properties correlation

Musto, Pellegrino; Martuscelli, E.; Ragosta, G.; Russo, Pietro; Scarinzi, Gennaro

doi:10.1002/(sici)1097-4628(19980801)69:5<1029::aid-app23>3.0.co;2-v

Cited by 92 publications

(72 citation statements)

References 5 publications

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“…The incorporation of 4, 8 and 12% BMI into the epoxy resin increased the flexural strength by 7.2, 19.9 and 27% respectively ( Table 1). This may be explained by the occurrence of homopolymerization of bismaleimide and the formation of intercrosslinking network structure between epoxy and bismaleimides [32,[34][35]. Similarly, the values of flexural strength of polyethersulfone modified epoxy increased with increasing BMI content.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…In our laboratory, epoxy resin has been modified using different polymeric and chemical modifiers namely hydroxyl terminated polydimethylsiloxane [23], γ-aminopropyltriethoxysilane [24], unsaturated polyester [25], vinylester [26], bismaleimides, polyuretanes [27] and the results obtained have been published elsewhere. The introduction of bismaleimide into epoxy resin improves the thermomechanical properties of epoxy resin [28][29][30][31][32]. Bismaleimides posses high crosslinking ability, high glass-transition temperature, high thermal ability, high char yield, excellent fire resistance, superior specific strength and specific modulus, and low water absorption.…”

Section: Introductionmentioning

confidence: 99%

“…It is reported that the incorporation of high performance thermoplastics into a thermoset resin system leads to significant improvements in mechanical properties [9,[19][20][21][22] [28][29][30][31][32]. Bismaleimides posses high crosslinking ability, high glass-transition temperature, high thermal ability, high char yield, excellent fire resistance, superior specific strength and specific modulus, and low water absorption.…”

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confidence: 99%

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Effect of polyethersulfone and N,N’-bismaleimido-4,4’-diphenyl methane on the mechanical and thermal properties of epoxy systems

Rajasekaran¹,

Alagar²,

Chozhan³

2008

Express Polym. Lett.

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Abstract. In order to improve thermo mechanical properties of cured epoxy resin, hydroxyl terminated polyethersulfone (PES) and N,N′-bismaleimido-4,4′-diphenyl methane (BMI) were incorporated to diglycidyl ether of bisphenol A (DGEBA) type epoxy resin and cured with diaminiodiphenylmethane (DDM). The resulting hybrid matrices, in the form of castings, were characterized for their mechanical properties like tensile, flexural and impact strength. Differential scanning calorimetry, dynamic mechanical analysis and thermogravimetric analysis of the matrices were also performed to determine the glass transition temperature and thermal stability of the matrix systems. The results obtained from mechanical and thermal studies indicated that the incorporation of polyethersulfone into epoxy resin improved the toughness and thermal stability of the systems. This is attributed to the formation of interpenetration polymer networks (IPNs) composed of the epoxy network and the linear PES. The incorporation of BMI into polyethersulfone modified epoxy systems increased thermal stability, glass transition temperature, tensile and flexural properties and decreased the impact strength. Scanning electron microscopy studies of polyethersulfone modified epoxy and BMI incorporated polyethersulfone modified epoxy systems exhibit homogeneous morphology confirming efficient chemical interaction and formation of intercrosslinked network structure.Keywords : polymer composites, thermal properties, mechanical properties, morphology, moisture absorption eXPRESS Polymer Letters Vol.2, No.5 (2008) [339][340][341][342][343][344][345][346][347][348] Available online at www.expresspolymlett.com DOI: 10.3144/expresspolymlett.2008.40 homogeneous hybrid thermoplastic modified epoxy with low fractions of thermoplastics [18]. It is reported that the incorporation of high performance thermoplastics into a thermoset resin system leads to significant improvements in mechanical properties [9,[19][20][21][22] [28][29][30][31][32]. Bismaleimides posses high crosslinking ability, high glass-transition temperature, high thermal ability, high char yield, excellent fire resistance, superior specific strength and specific modulus, and low water absorption. In continuation of our earlier studies, an attempt has been made in the present investigation to improve both toughness and thermo-mechanical properties of epoxy resin by incorporating hydroxyl terminated polyethersulfone (PES) and N,N′-bismaleimido-4,4′-diphenyl methane(BMI). Materials and methodsEpoxy resin [diglycidyl ether of bisphenol A (DGEBA)] LY556 (epoxy equivalent 189 and viscosity 10 000 cP) and 4,4′-diaminodiphenylmethane (DDM) were obtained from Ciba-Geigy (India). N,N′-bismaleimido-4,4′-diphenyl methane was synthesized in our laboratory as per the reported procedure ( Figure 1) [33]. Hydroxyl terminated polyethersulfone was supplied by Jilin University, China was used as received. The chemical structures of materials used are presented in Figure 2.340 Rajasekaran et al. -eXPRESS Polymer Let...

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Section: Mechanical Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Effect of polyethersulfone and N,N’-bismaleimido-4,4’-diphenyl methane on the mechanical and thermal properties of epoxy systems

Rajasekaran¹,

Alagar²,

Chozhan³

2008

Express Polym. Lett.

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“…Thus, both the intercrossed and the interpenetrating systems (IPN) based on bismaleimides and epoxy resins were prepared and exhibited good thermal and mechanical properties. Additionally [8,9], since imide groups could provide char formation in the condensed phase to improve polymers flame retardant properties, epoxy resins modified with imide compounds through chemical reactions or physical blending have been reported to show good flame retardant properties [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

<b>Preparation and reactivity studies of maleimidophenyl glycidylether with amines</b>

Lakshmi

Shivananda

Mahendra

2011

Bull. Chem. Soc. Eth.

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ABSTRACT ABSTRACT. The hybrid thermosetting maleimido epoxy compound 4-(N-maleimidophenyl) glycidylether (N-MPGE) was prepared by reacting N-(4-hydroxyphenyl) maleimide (HPM) with epichlorohydrin by using benzyltrimethylammonium chloride as a catalyst. The resulting compound possessed both the oxirane ring and maleimide group. The curing reaction of N-MPGE with amines as curing agents such as tetraethylenepentamine (TEPA), bishexamethylenetriamine (BHMT), 2-methyl pentamethylenediamine (2-MPMDA) and 2,2,4-trimethy diamines (2,2,4-TMDA) was studied. The cured samples exhibited good thermal stability and excellent chemical (acid/alkali/solvent) and water absorption resistance. Morphological studies by the SEM technique further confirmed the phase homogeneity network of the cured systems. KEY WORDS KEY WORDS KEY WORDS

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“…Thus, both the intercrossed and the interpenetrating systems (IPN) based on bismaleimides and epoxy resins were prepared which exhibited good thermal and mechanical properties Additionally, since imide groups could provide char formation in the condensed phase to improve polymers flame retardant properties, epoxy resins modified with imide compounds through chemical reactions or physical blending have been reported to show good flame retardant properties. [8][9][10][11][12] In this paper we first synthesize a maleimide compound with a hydroxyl group. We obtain maleimidophenyl glycidylether epoxy compounds through a simple addition reaction between the oxirane group of epichlorohydrin and hydroxyl group of the maleimide.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization and Curing Studies of Thermosetting Epoxy Resin with Amines

Lakshmi¹,

Shivananda²,

Mahendra³

2010

Bulletin of the Korean Chemical Society

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A new hybrid thermosetting maleimido epoxy compound 4-(N-maleimidophenyl) glycidylether (N-MPGE) is prepared by reacting N-(4-hydroxyphenyl) maleimide (HPM) with Epichlorohydrin by using benzyltrimethylammonium chloride as a catalyst. The resulting compound possesses both the oxirane ring and maleimide group. The curing reaction of these maleimidophenyl glycidylether epoxy compound (N-MPGE) with amines as curing agents such as ethylendiamine (EDA), diethylentriamine (DETA) and triethylenetetramine (TETA), aminoethylpiperazine (AEP) and isophoronediamine, IPDA), are studied. Incorporation of maleimide groups in the epichlorohydrin provides cyclic imide structure and high cross-linking density to the cured resins. The cured samples exhibited good thermal stability, excellent chemical (acid/alkali/solvent) and water absorption resistance. Morphological studies by the SEM technique further confirmed the phase homogeneity net work of the cured systems.

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An interpenetrated system based on a tetrafunctional epoxy resin and a thermosetting bismaleimide: Structure-properties correlation

Cited by 92 publications

References 5 publications

Effect of polyethersulfone and N,N’-bismaleimido-4,4’-diphenyl methane on the mechanical and thermal properties of epoxy systems

Effect of polyethersulfone and N,N’-bismaleimido-4,4’-diphenyl methane on the mechanical and thermal properties of epoxy systems

<b>Preparation and reactivity studies of maleimidophenyl glycidylether with amines</b>

Synthesis, Characterization and Curing Studies of Thermosetting Epoxy Resin with Amines

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