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Hua

He mea motuhake ki te hanga waipiro propargyl, 1,4 butynediol me te 3-chloropropyne

Ka polymerize a Propargyl ka pahū

Whakaahuatanga Poto:

Ko te tukanga tuatahi kei runga i te waipiro propargyl hei whakarewa, KOH hei turanga, te tauhohenga whakawera kia whiwhi ai i te whaainga.Ko te tauhohenga kaore he tikanga waimeha whakarewa ka iti ake te poke, he ma ake te tauhohenga.

I runga i te whakaaro ki te polymerization catalytic pea me te pirau pahū o nga alkynes kāpeka, i kuhu atu te Amgen's Hazard Evaluation Lab (HEL) ki te mahi i nga aromatawai haumaru me te awhina i te arotautanga o nga mahi i mua i te piki ake ki te 2 rita o te tauhohenga.

Ko te whakamatautau DSC e whakaatu ana ka timata te tauhohenga ki te pirau i te 100 °C me te tuku i te 3667 J/g pūngao, i te wa e hono tahi ai te waipiro propargyl me te KOH, ahakoa ka heke te kaha ki te 2433 J/g, engari ka heke ano te pāmahana pirau ki te 85 °C, a he tata rawa te pāmahana o te tukanga ki te 60 °C, he nui ake te noho haumaru.


Taipitopito Hua

Tohu Hua

Ko te tukanga tuatahi kei runga i te waipiro propargyl hei whakarewa, KOH hei turanga, te tauhohenga whakawera kia whiwhi ai i te whaainga.Ko te tauhohenga kaore he tikanga waimeha whakarewa ka iti ake te poke, he ma ake te tauhohenga.

I runga i te whakaaro ki te polymerization catalytic pea me te pirau pahū o nga alkynes kāpeka, i kuhu atu te Amgen's Hazard Evaluation Lab (HEL) ki te mahi i nga aromatawai haumaru me te awhina i te arotautanga o nga mahi i mua i te piki ake ki te 2 rita o te tauhohenga.

Ko te whakamatautau DSC e whakaatu ana ka timata te tauhohenga ki te pirau i te 100 °C me te tuku i te 3667 J/g pūngao, i te wa e hono tahi ai te waipiro propargyl me te KOH, ahakoa ka heke te kaha ki te 2433 J/g, engari ka heke ano te pāmahana pirau ki te 85 °C, a he tata rawa te pāmahana o te tukanga ki te 60 °C, he nui ake te noho haumaru.

Ko te Propargyl ka polymerize ka pahū2

I whakamahia a Yoshida Correction ki te tatau i nga raraunga DSC, a, ko nga hua e whakaatu ana ko te waipiro propargyl me te wairewa pāhare pāhare pāporo he tairongo me te pahū.

Ka polymerize, ka pahū te Propargyl3

Ko te regression kinetic ma te whakamahi i te AKTS i puta he TD24 o 73.5 °C mo te waipiro propargyl parakore me te 45.9 °C mo tana otinga 3 M KOH.Na reira, kaore e pai te punaha mo te whakanui.

Me whakamatau ano te otinga tauhohenga me te ARC, he tuku wera iti i te 46 °C, te pikinga o te pāmahana adiabatic ki te 6 °C, me waiho ko te tuku wera tauhohenga.I te 76 °C, he kaha te wera me te tuku hau, na te mea i pahū te waka whakamatautau.Ka whakaatuhia ano ko te tauhohenga kaore e pai mo te whakanui.

Ka polymerize, ka pahū te Propargyl4

I whakaaro a HEL me te roopu ki te whakarereke i te turanga, engari i kitea e nga whakamatautau DSC ahakoa te noho mai o te turanga i whakahekehia te pāmahana pirau o te waipiro propargyl.

Ka polymerize, ka pahū te Propargyl5

Ko nga whakamatautau whakamaarama ma te whakamahi alkali i whakaatu he pai te tauhohenga KOH.Ko te tirotiro ano i nga whakarewa i whakaatu he pai ake te tauhohenga o te dioxane.I whakaatuhia e nga whakamatautau ARC i muri i te tauhohenga o waho o te tauhohenga i whaaia, ka piki tonu te pāmahana ki te 200 °C karekau tonu i kitea te pirau.Ka taea te whakanui ake i tenei ahuatanga.


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