DL-Lactide CAS 95-96-5 mo te whakaheke koiora

CAS:95-96-5

Tātai rāpoi:C6H8O4

Taumaha rāpoi:144.13

EINECS No:202-468-3

kupu taurite:2,5-dimethyl-3,6-dioxo-1,4-dioxane; 2,5-dioxo-3,6-dimethyl-1,4-dioxane; 2-hydroxy-propanoicacibimol.cyclicester;3,6-diketo-2,5-dimethyl-1,4-dioxane; 3,6-Dimethyl-2,5-dioxo-1,4-dioxane; 3,6-dimethyl-p-dioxane-2,5-dione; 3,6-dimethyl-p-dioxane-5-dione; D,L-LactideS

Waiho To Karere

Taipitopito Hua

Tikiake

Tohu Hua

He aha te DL-Lactide CAS 95-96-5?

Ko te Lactide he tawerewere marama kore tae, he karaihe acicular ranei, te ira whakarewa 93-95 ℃, ka whakarewahia i roto i te chloroform, te waiwaro, kare e rewa i te wai. Waiwai ngawari, polymerization ngawari. Ka taea te whakamahi ki te whakaputa i te waikawa polylactic hauora me te kaihoko cycloesterification.

Whakatakotoranga

Tūemi	Paerewa
Maamaa	>98.0%
Mp	123~125
Te ahua	Kiriata ma
Te waikawa lactic	<0.2%
Wai	0.4%
Te hurihanga	-0.2~+0.2

Taupānga

Ko te hanga o te lactide mai i te waikawa lactic raw rauemi kei te nuinga i runga i te whakamahinga o te waikawa lactic condensation ki te whakaputa oligomers waikawa lactic, katahi ka whakahekehia nga oligomers waikawa lactic ka pakirihia ki te whakaputa lactide. Ko te tukanga katoa me whakahaere i raro i nga tikanga o te wera nui, te pehanga kino me te catalysis. I roto i te tukanga, ki te whakapai ake i te hua katoa, me whakamahi ano te unreactant ma te reflux. Ka mutu, ka taea te whiwhi hua lactide whaimana ma etahi tikanga purenga.
Hei taonga koiora, ka whakamahia te nuinga mo te whakatika i nga pereti, nga tuitui pokai, nga stent ngakau, me nga whakakii tinana.