N,N-dimethyl-1,3-propanediamine (nke a na-akpọ DMAPA) bụ obere aliphatic diamine nke nwere ma amino otu tertiary na primary dị na molekul ahụ. Ọ bụ mmiri mmiri na-enweghị agba na nke doro anya nke nwere isi ammonia. Ọ na-ese anwụrụ n'ikuku ma na-agbaze na mmiri na ihe mgbaze organic. Usoro molekul ya bụ C5H14N2 na usoro nhazi ya bụ (CH3)2NCH2CH2CH2NH2.
Ọ bụ otu n'ime ụdị dị mkpa nke ihe ndị dị ka abụba amine na ihe ndị dị ndụ ma bụrụkwa ihe dị mkpa maka ihe ndị sitere n'okike. A na-ejikarị ya eme ihe na kemịkalụ kwa ụbọchị, ọgwụ nje, agba, resin, wdg. Ugbu a, a na-ejikarị ọtụtụ DMAPA na China akwadebe betaine na amidopropyldimethylamine, nke a na-eji eme ihe na ngwaahịa kemịkalụ kwa ụbọchị dịka shampoo, gel ịsa ahụ, gel ịsa ahụ nwa, ihe mkpuchi, ncha mmiri mmiri na ihe nhicha. Na mgbakwunye, a na-ejikwa DMAPA dị ka ihe na-akpali polyurethane, ihe na-agwọ ọrịa epoxy resin na ihe na-eme ka ọ dị ngwa ngwa, yana n'imepụta agba.

Ụzọ kachasị esi emepụta DMAPA bụ: 1. Iji dimethylamine na acrylonitrile mee ihe dị ka ihe eji emepụta ihe, a na-enweta dimethylaminopropionitrile (DMAPN) site na mgbakwunye Michael. N'ime usoro nkwadebe ụlọ ọrụ mmepụta ihe nke DMAPN, a na-agbakwunye ihe dị ka 2% nke oke ihe eji emepụta ihe na mmiri iji kwalite mmeghachi omume mgbakwunye ma wepụ oke dimethylamine n'ụzọ azeotropic; 2. DMAPN nke a na-enweta site na distillation na nzọụkwụ mbụ na-aghọ ihe na-eme ka hydrogen dị na catalytic n'okpuru ọnọdụ nrụgide dị elu. Nkwadebe nke DMAPA

N'ọkwa nke abụọ nke hydrogenation iji kwadebe DMAPA, mmeghachi omume akụkụ ga-eme. Ihe ndị sitere na mmeghachi omume a bụ amine bis-DMAPA nke abụọ na amine tri-DMAPA nke atọ. Ugbu a, mmepụta DMAPA n'ime ụlọ na-anabata mmeghachi omume kettle, ihe na-akpali hydrogenation bụ ntụ ntụ Raney nickel. Iji gbochie mmepụta nke ihe ndị a, ọ dị mkpa ịgbakwunye 12%-16% nke ihe na-akpali akpali nke ihe ngwọta mmiri caustic alkali ma ọ bụ ammonia mmiri mmiri, ihe ngwọta mmiri caustic alkali na ammonia mmiri mmiri. Ojiji ahụ ga-emepụta nnukwu mmiri mkpofu na mmiri mkpofu, nke siri ike imebi ma hazie, na-eme ka ibu nke nhazi mgbe emechara dịkwuo elu.

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