Tom ntej: Trans-2,3-Dimethylacrylic Acid CAS 80-59-1

Tom ntej: Trans-2,3-Dimethylacrylic Acid CAS 80-59-1

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Trans-2,3-dimethacrylic acid yog cov kua tsis muaj xim. Nws yog acidic thiab tuaj yeem hnov ​​​​mob nrog cov hauv paus los tsim cov ntsev sib xws. Nws tuaj yeem hnov ​​​​mob hnyav nrog oxygen nyob rau hauv chav tsev kub thiab tej zaum yuav spontaneously combust. Nws kuj tuaj yeem ua rau qee cov hlau los tsim cov hlau ntsev sib xws. Trans-2,3-dimethacrylic acid muaj solubility zoo thiab tuaj yeem yaj hauv dej thiab cov kuab tshuaj organic. Hauv kev lag luam, nws feem ntau siv los ua ib qho nruab nrab hauv kev sib txuas ntawm cov organic sib txuas, thiab tuaj yeem siv rau hauv kev npaj ntawm qee yam polymers, plastics, thiab coatings.

Siv cov txheej txheem synthesis
Trans-2,3-dimethacrylic acid, tseem hu ua methylisobutenic acid, yog unsaturated carboxylic acid uas muaj ob pawg methyl. Nws muaj ntau yam kev siv.

Trans-2,3-dimethacrylic acid yog siv los ua monomer hauv kev sib txuas ntawm cov polymers. Nws tuaj yeem raug copolymerized nrog lwm cov monomers los ntawm cov tshuaj tiv thaiv dawb radical polymerization, xws li copolymerization nrog acrylic acid thiab methyl acrylate kom tau txais methylisopropyl methyl acrylate copolymer. Cov polymers no muaj cov khoom zoo hauv cov xim, txheej, nplaum, thiab lwm yam, thiab yog siv los ua kom muaj kev cuam tshuam ntawm cov khoom, txo viscosity, thiab lwm yam.

Thib ob, trans-2,3-dimethacrylic acid kuj tuaj yeem siv los ua ib qho tseem ceeb hauv cov khoom siv hluavtaws hluavtaws. Nws ob pawg methyl muab qhov chaw ua haujlwm rau cov tshuaj tiv thaiv, thiab ntau yam ntawm cov organic tuaj yeem npaj tau los ntawm kev ua haujlwm ntxiv ntawm pab pawg hloov pauv. Piv txwv li, los ntawm reacting nws nrog amines los yog alcohols, biologically active compounds, xws li cov nroj tsuag kev loj hlob regulators, tuaj yeem ua ke.

Cov txheej txheem synthesis ntawm trans-2,3-dimethacrylic acid feem ntau yog npaj los ntawm cov tshuaj tiv thaiv ntawm isobutylene nrog carbon monoic acid hydrate. Isobutylene yog reacted nrog peracid zoo hlau kom tau cov substrate methylisobutenic acid, uas yog tom qab ntawd reacted nrog ntau cuprous chloride los tsim cov ntsev sab hauv, thiab tom qab ntawd reacted nrog cawv rau hydrolyze los tsim cov acrylic acid.

Cov ntaub ntawv kev nyab xeeb
Trans-2,3-dimethacrylic acid yog cov organic compound, thiab nws cov ntaub ntawv kev nyab xeeb yog raws li hauv qab no:

1. Toxicity: trans-2,3-dimethacrylic acid muaj qee yam toxicity thiab tej zaum yuav ua rau khaus thiab kev puas tsuaj rau tib neeg lub cev. Thaum siv los yog tuav cov tshuaj no, yuav tsum tau ceev faj kom tsis txhob muaj kev sib cuag ncaj qha rau ntawm daim tawv nqaij, qhov muag, thiab ua pa.

2. Kev phom sij hluav taws kub: Trans-2,3-dimethacrylic acid yog cov khoom siv hluav taws xob uas tsim cov vapors ntawm qhov kub thiab txias. Thaum tuav lossis khaws cov khoom sib xyaw no, tsis txhob ignition thiab kub siab, thiab tswj qhov cua kom zoo.

3. Kev cia khoom: trans-2,3-dimethacrylic acid yuav tsum muab cia rau hauv lub thawv airtight, kom deb ntawm qhov hluav taws kub thiab oxidants. Nws yuav tsum tau muab cia rau hauv kev sib cais los ntawm combustibles, oxidants, thiab muaj zog acids kom tsis txhob muaj xwm txheej tshwm sim.

4. Cov lus teb thaum muaj xwm txheej ceev: Thaum muaj dej ntws los yog kev sib tsoo, yuav tsum muaj kev ntsuas kub ceev tam sim ntawd, xws li hnav cov khoom tiv thaiv tus kheej tsim nyog, tshem cov neeg tawm sai sai, thiab tiv thaiv cov khoom nkag mus rau hauv cov kav dej lossis cov dej hauv av.

5. Kev tiv thaiv kev kis kab mob: Thaum tuav cov tshuaj trans-2,3-dimethacrylic acid, cov khoom siv tiv thaiv tus kheej xws li hnab looj tes tiv thaiv, tsom iav, thiab cov khaub ncaws tiv thaiv yuav tsum hnav kom muaj kev nyab xeeb ntawm daim tawv nqaij, qhov muag, thiab kev ua pa.

6. Kev pov tseg pov tseg: Cov khib nyiab trans-2,3-dimethacrylic acid yuav tsum muab pov tseg kom raug raws li cov cai hauv zos. Tsis txhob muab pov tseg pov tseg rau hauv ib puag ncig ntuj thiab xa mus rau qhov chaw tshwj xeeb kho cov khib nyiab pov tseg.