Maleimides

Crosslinkers (PDM/HVA-2, BDM) and monomers (NPMI, CHMI) that give reversion resistance and heat resistance. Also used as co-agents in peroxide cure.

Bismaleimides (PDM, BDM) do two different jobs. In sulfur systems they balance reversion and reduce heat build-up. In peroxide systems they act as co-agents and increase crosslinking efficiency.

Mono-maleimides (NPMI, CHMI and others) are reactive monomers used mostly in polymer modification, for example to increase the heat resistance of ABS and PVC.

Comparison

CodeTypeMain function
PDM (HVA-2)BismaleimideReversion prevention, peroxide co-agent
BDMBismaleimideCrosslinker, heat resistance
NPMIMonomerPolymer heat resistance (ABS, PVC)
CHMIMonomerPolymer modification

Relative, qualitative comparison; varies with formulation and rubber type.

14 substances

Full index →
NPMI
N-PhenylmaleimideCAS 941-69-5
CHMI
N-CyclohexylmaleimideCAS 1631-25-0
BDM
4,4'-BismaleimidodiphenylmethaneCAS 13676-54-5
PDM
N,N'-m-PhenylenebismaleimideCAS to be verified
MPBM-4Me
N,N'-(4-Methyl-1,3-phenylene)bismaleimideCAS 6422-83-9
BME
1,2-Bis(maleimido)ethaneCAS 5132-30-9
MMI
N-MethylmaleimideCAS 930-88-1
NNMI
N-(1-Naphthyl)maleimideCAS 3369-39-9
TBPMI
N-(2,4,6-Tribromophenyl)maleimideCAS 59789-51-4
TMPMI
N-(2,6-Dimethylphenyl)maleimideCAS 1206-49-1
BZMI
N-BenzylmaleimideCAS 1631-26-1
TBMI
N-tert-ButylmaleimideCAS 4144-22-3
4-HPM
N-(4-Hydroxyphenyl)maleimideCAS 7300-91-6
p-CPM
N-(4-Carboxyphenyl)maleimideCAS 17057-04-4
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