Zotsatira za Alkyl Polyglycosides

Masiku ano, ma alkyl polyglycosides amapezeka mokwanira komanso pamitengo yopikisana kotero kuti kugwiritsidwa ntchito kwawo ngati zida zopangira zida zatsopano zopangira ma surfactants ozikidwa pa alkyl polyglycosides kumadzutsa chidwi chachikulu. Chifukwa chake, ma surfactants a alkyl polyglycosides, mwachitsanzo chithovu ndi kunyowetsa, amatha kusinthidwa malinga ndi kusintha kwamankhwala.

Kutulutsa alkyl glycosides ndi ntchito yomwe ikuchitika kwambiri pakali pano. Pali mitundu yambiri ya zotumphukira za alkyl glycoside pogwiritsa ntchito nucleophilic substitution.Kuphatikiza pakuchita ndi esters kapena ethoxides, zotumphukira za ionic alkyl polyglycoside, monga sulfates ndi phosphates, zitha kupangidwanso. .

Kuyambira ma alkyl polyglycosides okhala ndi unyolo wa alkili(R) wa 8,10,12,14 ndi 16 maatomu a kaboni.₈ku C₁₆）ndi digiri yapakati ya polymerization(DP) ya 1.1 mpaka 1.5, magawo atatu a zotumphukira za alkyl polyglycoside zidakonzedwa. Kuti afufuze kusintha kwa surfactant katundu hydrophilic kapena hydrophobic m'malo anayamba kutsogolera ku alkyl polyglycoside glycerol ethers. (Chithunzi 1)

Poganizira magulu awo ambiri a hydroxyl, alkyl polyglycosides ndi mamolekyu omwe amagwira ntchito mopitilira muyeso.⁶ atomu. Ngakhale magulu oyambirira a hydroxyl amakhala otanganidwa kwambiri kuposa magulu achiwiri a hydroxyl, kusiyana kumeneku sikokwanira nthawi zambiri kuti akwaniritse zosankhidwa popanda magulu oteteza. khama lalikulu losanthula. Kuphatikizika kwa gasi chromatography ndi misa spectrometry kunawonetsedwa ngati njira yowunikira yomwe imakonda. Mu kaphatikizidwe ka alkyl polyglycoside zotumphukira, zakhala zothandiza kugwiritsa ntchito alkyl polyglycoside yokhala ndi DP yotsika mtengo wa 1.1, motsatira zomwe zimatchedwa alkyl monoglycosides. Izi zimapangitsa kuti pakhale zosakaniza zocheperako zovuta komanso chifukwa cha kusanthula kosavuta.