Njirimara physicochemical nke Alkyl Polyglycosides-omume nke oge

Usoro ọnụọgụ abụọ

Eserese usoro nke C12-14 alkyl polyglycoside (C12-14 APG)/ usoro mmiri dị iche na nke APG dị mkpụmkpụ.(Foto nke 3).N'ebe okpomọkụ dị ala, a na-emepụta mpaghara siri ike / mmiri mmiri n'okpuru ebe Krafft, ọ karịrị oke ịta ahụhụ.Site na mmụba nke okpomọkụ, usoro ahụ na-agbanwe n'ime usoro mmiri mmiri isotropic.N'ihi na kristal na-alaghachi azụ azụ ruo oke, oke a na-agbanwe ọnọdụ na oge nchekwa.Na obere mkpokọta, usoro mmiri isotropic na-agbanwe n'elu 35 ℃ n'ime mpaghara akụkụ abụọ nke usoro mmiri mmiri abụọ, dịka a na-ahụkarị ya na nonionic surfactants.N'ihe dị elu karịa 60% site n'ịdị arọ, a na-emepụta usoro nke mmiri kristal mmiri na okpomọkụ niile.Ọ bara uru ịkọwa na na mpaghara otu mpaghara isotropic, enwere ike ịhụ birefringence na-asọpụta doro anya mgbe ntinye uche dị ntakịrị karịa oge agbazere, wee na-apụ n'anya ngwa ngwa mgbe usoro nhazi ahụ gasịrị.Agbanyeghị, ọ nweghị mpaghara polyphase a chọtara kewapụrụ na ngalaba L1.N'ime oge L1, mpaghara ọzọ na-adịghị ike na-agba ọsọ birefringence dị nso na uru kacha nta nke oghere mmiri/mmiri miscibility.
Nnyocha phenomenological n'ime nhazi nke usoro kristal mmiri bụ Platz et al.Iji ụzọ ndị dị ka polarization microscope.N'ịgbaso nyocha ndị a, mpaghara atọ dị iche iche ka a na-atụle na ngwọta C12-14 APG gbadoro anya: Lα_{l ,}Lα_lhna Lah.Enwere textures atọ dị iche iche dịka microscopy polarization si dị.
Mgbe echekwara ya ogologo oge, usoro kristal mmiri na-ahụkarị na-etolite mpaghara pseudoisotropic gbara ọchịchịrị n'okpuru ìhè polarized.Ekewapụrụ mpaghara ndị a n'ụzọ doro anya na mpaghara ndị nwere nnukwu ihe.Oge Lαh, nke na-eme n'ime oke ntinye uche nke mpaghara mmiri kristal mmiri, na oke okpomọkụ, na-egosi ụdị textures ahụ.Ọ dịghị mgbe a na-ahụ textures Schlieren, ọ bụ ezie na ike birefringent mmanu streaks na-enwekarị.Ọ bụrụ na ihe nlele nwere usoro Lαh dị jụụ iji chọpụta ebe Krafft, ederede na-agbanwe n'okpuru ọnọdụ okpomọkụ.Mpaghara pseudoisotropic na eriri mmanu nke akọwapụtara nke ọma na-apụ n'anya.Na mbụ, ọ dịghị C12-14 APG crystallizes, kama, a ọhụrụ lyotropic usoro na-egosi na ọ bụ na-adịghị ike birefringence na-etolite.N'ihe dị oke elu, usoro a na-agbasa ruo oke okpomọkụ.N'ihe banyere alkyl glycosides, ọnọdụ dị iche iche na-apụta. All electrolytes, ma e wezụga sodium hydroxide, mere ka mbelata dị ukwuu n'ígwé ojii. Ihe dị iche iche nke electrolytes bụ maka usoro dị elu karịa nke alkyl polyethylene glycol ethers. .Sprisingly, e nwere nanị nnọọ nta iche n'etiti onye electrolytes.The mgbakwunye nke alkali budata belata cloudiness.Iji kọwaa ọdịiche omume dị n'etiti alkyl polyglycol ethers na alkyl polyglycol ethers, a na-eche na otu OH na-agbakọba na glucose unit ejirila ethylene oxide otu ụdị hydration dị iche iche.Mmetụta dị ukwuu nke electrolytes na Alkyl polyglycol ethers na-egosi na enwere ụgwọ n'elu alkyl polyglycoside micelles, ebe alkyl polyethylene glycol ethers na-eche na ọ dịghị ụgwọ.
Ya mere, alkyl polyglycosides na-akpa àgwà dị ka ngwakọta nke alkyl polyglycol ethers na anionic surfactants. Ọmụmụ nke mmekọrịta dị n'etiti alkyl glycosides na anionic ma ọ bụ cationic surfactants na mkpebi siri ike na emulsion na-egosi na alkyl glycosides micelles nwere ụgwọ na-adịghị mma n'elu pH. nso nke 3 ~ 9. N'ụzọ dị iche, ụgwọ nke alkyl polyethylene glycol ether micelles adịghị mma ma ọ bụ dị nso na efu.Akọwabeghị nke ọma ihe kpatara alkyl glycoside micelles na-adịghị mma.