Kev thov thiab kev tsim khoom ntawm 3, 3-Dimethylacrylic acid

Taw qhia

CAS 541-47-9 3, 3-Dimethacrylic acidyog dav siv hauv tshuaj, tshuaj tua kab, tshuaj tsw qab thiab surfactants. Cov txuj lom yog siv rau hauv detergents kom tshem tawm dandruff thiab txo qhov khaus, tsis muaj tshuaj lom thiab tsis ua rau khaus.

Thiab 3, 3-dimethacrylic acid tuaj yeem siv los ua tshuaj tua kab thiab tshuaj nruab nrab los ua ke cov khoom siv pyrethroid raw los ntawm Martel txoj kev.

Ntau lawm

CN201310605741.8 qhia txog ib txoj hauv kev npaj 2, 2-dimethylvinylboronic acid, uas yog tus yam ntxwv hauv qhov ntawd:

Siv cov kuab tshuaj organic dichloromethane los yog tetrahydrofuran, nyob rau hauv cov xwm txheej ntawm 10 ~ 60 degree, siv 3, 3-dimethylvinylboronic acid Acrylic acid, teb nrog bromine rau 3 ~ 4h, kho pH rau 9 ~ 10 nrog alkali tom qab cov tshuaj tiv thaiv, react rau 2 ~ 3h nyob rau hauv tus mob ntawm 30 ~ 60 degree, tawm sawv ntsug rau stratification tom qab cov tshuaj tiv thaiv, thiab distilled cov organic txheej kom tau 2, 2-diol Methyl vinyl bromide. Siv cov kuab tshuaj organic tetrahydrofuran, ntawm -78 ~ -40 degree kub, siv 2, 2-dimethylvinyl bromide, react rau 2 ~ 3h nyob rau hauv qhov kev txiav txim ntawm hlau lithium thiab boronating reagent, thiab siv hydrochloric acid los kho pH mus rau 3 ~ 4, muab rho tawm nrog ethyl acetate, concentrated cov organic txheej, lim los ntawm cov tsis-polar hydrocarbon hnyav, thiab qhuav kom tau 2, 2-dimethylvinylboronic acid. Cov khoom tsim muaj cov yam ntxwv ntawm kev nyab xeeb, kev tiv thaiv ib puag ncig thiab kev ua haujlwm yooj yim, thiab tsim nyog rau kev tsim khoom lag luam.

CN200910238568.6 qhia txog viscoelastic tsis muaj zog gel hloov pauv hloov tus neeg sawv cev, uas yog siv rau hauv kev txhaj tshuaj dej ntawm cov roj qhov dej hauv cov roj. Qhov hnyav ntawm txhua feem yog: viscoelastic nto active polymer: 0.15-0.25 ib feem; cross-linking agent: 0.05-0.15 ntu; regulator: 0.001-0.005 ntu; dej: 99.{13}}.6 ntu.

Rau cov viscoelastic nto active polymer, cov khoom los ntawm qhov hnyav ntawm txhua yam yog: acrylamide: {{0}} qhov chaw; 3, 3-dimethacrylic acid: 1-2 ntu; 2-acrylamido-2-dodecane Ethyl sulfonic acid: 1.5 ~ 3.5 qhov chaw thiab/los yog N, N-dimethyl-allyl-hexadecylammonium chloride: 1 ~ 4 qhov chaw; dej deionized: 60 ~ 75 qhov chaw; pib: 0.3 ~ 1 pab. Rau cov neeg pib, cov khoom los ntawm qhov hnyav ntawm txhua qhov yog: 2.5-3.5 feem ntawm ammonium persulfate; 1 feem ntawm sodium sulfite. Cov nyhuv yog tias nws muaj qee yam gel lub zog, thiab muaj peev xwm txo tau cov roj-dej interfacial nro, lub sij hawm tsim gel yog kho tau, cov dej txhaj tshuaj tuaj yeem txhim kho, cov roj-dej interfacial nro tuaj yeem txo, cov roj residual nyob rau hauv lub pores tuaj yeem ntxuav tawm, thiab cov dej txhaj tshuaj rov qab tuaj yeem txhim kho.