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Mishonga yeAlkyl Polyglycosides

Mazuvano, alkyl polyglycosides inowanikwa muhuwandu hwakakwana uye nemitengo yemakwikwi kuitira kuti kushandiswa kwavo sechigadzirwa chekugadzirwa kwevatsva vakasiyana-siyana vanogadzira kubva kune alkyl polyglycosides kuri kumutsa kufarira kukuru. Nekudaro, iyo surfactants zvimiro zvealkyl polyglycosides, semuenzaniso furo nekunyorova, zvinogona kugadziridzwa sezvinodiwa nekuchinja kwemakemikari.

Kutorwa kwealkyl glycosides ibasa rinoitwa nevakawanda pari zvino. Kune marudzi mazhinji ezvinyorwa zvealkyl glycoside nenzira ye nucleophilic substitution. Pamusoro pekuita ne esters kana ethoxides, ionic alkyl polyglycoside derivatives, senge sulfates uye phosphates, inogona zvakare kugadzirwa. .

Kutanga kubva kualkyl polyglycosides ine alkyl cheni(R) ye8,10,12,14 uye 16 maatomu ecarbon.8kuC16)uye avhareji dhigirii yepolymerization (DP) ye1.1 kusvika 1.5, matatu akatevedzana ealkyl polyglycoside derivatives akagadzirwa. Kuti uongorore shanduko yezvivakwa zve surfactant hydrophilic kana hydrophobic substituents yakaunzwa ichitungamira kune alkyl polyglycoside glycerol ethers. (Mufananidzo 1)

Tichifunga nezvemapoka avo akawanda emahydroxyl, alkyl polyglycosides ari over-functionalized molecules.by far the most alkyl polyglycoside derivatizations anoitwa nekemikari shanduko yeyemahara primary hydroxyl group paC.6 atomu. Kunyange zvazvo mapoka ekutanga e-hydroxyl ari kunyanya kushandiswa kupfuura mapoka echipiri e-hydroxyl, musiyano uyu hauna kukwana mumatambudziko akawanda kuti uwane sarudzo yakasarudzwa pasina mapoka ekudzivirira.Nekudaro, kubuda kwealkyl polyglycoside kunogona kutarisirwa nguva dzose kubudisa musanganiswa wechigadzirwa icho chimiro chinosanganisira. kuedza kukuru kuongorora. Musanganiswa wegasi chromatography uye misa spectrometry yakaratidzwa seyo yakasarudzika nzira yekuongorora. Mukugadzirwa kwealkyl polyglycoside derivatives, zvakaratidza kushanda kushandisa alkyl polyglycoside ine yakaderera DP kukosha kwe1.1, mune zvinotevera zvinonzi alkyl monoglycosides. Izvi zvinotungamira kune kushomeka kwechigadzirwa musanganiswa uye semhedzisiro kune kushoma ongororo.

 


Nguva yekutumira: Feb-23-2021