Ko te whakaurunga o te roopu acrylate tuarua, ethylene glycol diacrylate (No. 15), ki te 2-hydroxyethyl acrylate (No. 11) kaore i nui te huringa o te kakara.Ko te mea o mua e whakaatu ana i te haunga o te harore, ko te mea whakamutunga e whakaatu ana i te kakara o te harore me te pukohu.Engari, mo te 1,2-propanediol diacrylate (No. 16) i muri i te whakaurunga o te roopu acrylate tuarua i roto i te waikawa waikawa-1-hydroxyisopropyl ester (No. 10) / acrylic Acid-2-Hydroxypropyl ester (No. 12) , Ko te geranium me te kakara hau mama o te monoester i ngaro i roto i te diester, a ka puta te kakara o te karika me te kopa i roto i te diester.
I roto i nga mekameka tika katoa n-alkyl acrylates, ethyl acrylate (No. 2) i whakaatu te paepae kakara iti rawa, ko te 0.83ng/lair anake.Na te pikinga o te roa o te mekameka, ka piki ake te paepae, ka eke te n-butyl acrylate (No. 4) ki te 2.4ng/lair.Engari, kaore tenei ture e whai hua i nga wa katoa, na te mea ko te paepae o te methyl acrylate (No. 1) me te mekameka poto rawa atu i roto i nga monomers e wha ko te teitei (11 ng/lair).Ka whakatauritea ki o raatau monomers acrylate kukū ethyl acrylate (No. 2) me te propyl acrylate (No. 3), vinyl acrylate (No. 5) me te propenyl acrylate (No. 6) kei roto i nga here takirua haunga i whakaatu i te 20 me te 3.5 nga wa iti ake nga paepae kakara. .E tohu ana tenei ko te whakaurunga o nga here takirua kore i te haunga i roto i te mekameka waro ka tino piki ake te paepae hongi me te whakaiti i te tirohanga kakara.Heoi, ki te kore te herenga haunga-rua i runga i te roopu kapeka, kaore e kitea te paanga.Hei tauira, ko te paepae kakara o te waikawa kiriaku-3- (z) penetene ester (No. 7) he (1.3 ng/lair) anake.
I roto i nga hākawa alkyl acrylate katoa, ko te 2-ethylhexyl acrylate (No. 13) i whakaatu i te paepae kakara teitei o te 20ng/lair, e pa ana ki te ngoikore o te taunekeneke i waenga i te 2-ethylhexyl me te kaikawe kakara na te kaha aukati o te 2-ethylhexyl.Ko te paepae kakara nui o te 2-ethylhexyl acrylate me tona whakamahinga hei whakapai ake i te ngawari me te ngawari o te whakamararatanga kapia kiriaku e pai ana mo te whakamahi hei taapiri, hei comonomer ranei i roto i nga paninga kakara iti me nga taapiri.Heoi, ko te wa roa o te whakapiri ki te 2-ethylhexyl acrylate ka puta he pukupuku, he mate pukupuku ranei, ka mutu pea te kino o te paepae kakara, na te mea kare e kitea e te tinana o te tangata.
Ko te paepae kakara o te acrylate kei roto te cyclopentane me te cyclohexane (No. 17 me 18) kaore e iti iho i tera o te cycloalkyl kore he rite te maha o nga ngota waro.I te wa ano, ko te paepae kakara o te cyclopentane acrylate (No. 17) he 30 wa teitei ake i tera o te cyclohexane acrylate (No. 18).
Mo te 2-hydroxyethyl acrylate (No. 11) me te 2-hydroxy-n-propyl acrylate (No. 12), ko te whakaurunga o te hydroxyl i roto i te hanganga i tino pai ake te paepae kakara, ko te 178 me te 106ng/lair, i hanga ai to ratou tino iti te kakara.Ka kitea ano te ahua mai i te rereketanga o te paepae kakara i waenga i te sec butyl acrylate (No. 8) me te 1-hydroxyisopropyl acrylate (No. 10).
Na te whakaurunga o te SEC butyl, i tino heke te paepae kakara o te acrylate ki te 0.073ng/lair anake, e whakaatu ana i te paepae kakara iti rawa i waenga i nga acrylates alkyl katoa, ara, te kakara kaha.
I roto i nga monomers 20 kua whakatauhia, ko te 2-methoxyphenyl acrylate (No. 19) i whakaatu i te paepae kakara iti rawa, ko te 0.068ng/lair anake.Ko te paepae kakara o te 2-methoxyphenyl ester, e whakamahia nuitia ana hei ngako i roto i te ahumahi kai me te ahumahi reka, he 0.088ng/lair.E tohu ana tenei ko nga hākawa e rua me te hanganga 2-methoxyphenyl e whai waahi ana ki te kaikawe kakara.
Ko nga rangahau a Patrick Bauer me etahi atu mo enei monomers acrylate e 20 i whakaatu ko nga monomers mekameka poto te nuinga o te ahua o te kakara ki te whanariki, te hau mama me te karika, ko nga monomers mekameka roa i te nuinga o te whakaatu i te kakara he rite ki te harore, geranium me te karoti.Ko nga monomers acrylate katoa he iti noa iho te paepae kakara, ara, he nui te kakara o te katoa.Ko nga paepae kakara o SEC butyl acrylate me te 2-methoxyphenyl acrylate i tino iti, e whakaatu ana i te tino kaha o te kakara.Ko te 2-hydroxyethyl acrylate me te 2-hydroxypropyl acrylate te teitei o te paepae kakara me te iti rawa o te kakara.
Wā tuku: Hune-07-2022