Isingeniso Esibanzi
Okuphezulu-Ukuzinza okungu-3,4-I-Dihydro-2H-pyran (DHP, CAS 110-87-2) ibanga elizinzile ngokukhethekile lale ether eyi-cyclic esetshenziswa kukhemistri yokwenziwa. I-DHP yaziswa ngekhono layo lokwakha i-tetrahydropyranyl (THP) ethers-isu elisetshenziswa kakhulu lokuvikela iqembu le-hydroxyl kwezemithi, ama-peptides, kanye namakhemikhali e-carbohydrate.
Ekwakhekeni kwayo-okuzinza okuphezulu, i-DHP ivinjiwe ukunciphisa i-polymerization, okuvumela ishalofu{1}}elithuthukisiwe lempilo, ukumelana nokushisa, nokuphepha kwezokuthutha. Lokhu kubaluleke kakhulu ekugcinweni kwenqwaba, ukuthunyelwa kokuthunyelwa kwamanye amazwe, kanye nezindawo lapho i-DHP ingase ichayeke khona ekushiseni, kumswakama, noma kumhwamuko oneasidi. Okuhlukile okuzinzile kugcina ukusebenza kabusha okugcwele kuyilapho kunciphisa ukuwohloka noma ukukhuphuka kwe-viscosity ngokuhamba kwesikhathi.
Imininingwane Yomkhiqizo
| Igama Lomkhiqizo | Okuphezulu-Ukuzinza okungu-3,4-I-Dihydro-2H-pyran |
| I-CAS NO. | 110-87-2 |
| Omqondofana | I-DHP, umanduleli we-THP, i-DHP ezinzile |
| I-Molecular Formula | C5H8O |
| Ikhodi ye-HS | 2932999099 |
| Ifomula Yesakhiwo |  |
Ukucaciswa
|
Izinto |
Okujwayelekile |
|
Ukubukeka |
Uketshezi olukhanyayo olungenambala |
|
Ubumsulwa (%) |
Kukhulu noma kulingana no-98.5 |
|
Umswakama (%) |
Ngaphansi noma kulingana no-0.25 |
|
I-THP(%) |
1.3 ubuningi |
| Ukuminyana (g/cm³) | 0.922 |
Ukusetshenziswa Nobalulekile{{0}Kwe-DHP Ezinzile
(Yakhelwe Isitoreji, Ukuphatha Inqwaba & Ukuphinda Kusebenze Okunwetshiwe)
- I-THP Ether Formation in Multistep Synthesis:
I-DHP isabela notshwala ngaphansi kwe-acid catalysis yakhe ama-ethers e-THP. Izinga eliphezulu-lokuzinza ligcina lo msebenzi ngaphandle kwe-polymerization ngaphambi kwesikhathi.
- Isitoreji Senqwaba & Ezokuthutha:
Ukuzinzisa kuvimbela{0}}i-polymerization, i-gelling, noma ukubaphuzi okuzenzakalelayo ngesikhathi sesitoreji esinwetshiwe noma ukuthunyelwa kwamanye amazwe.
- Ukuphepha Kokuphatha Okuthuthukisiwe:
I-inhibitor ikhawulela ukuwohloka kwe-exothermic ngesikhathi sokuchayeka ekushiseni, kuma-acids, noma e-UV.
- Akukho Ukuyekethisa Ukusebenza:
Ihambisana ngokugcwele nezimo zokusabela ezijwayelekile; i-stabilizer iyakhishwa noma idliwe ngesikhathi sokwakheka kwe-asidi{0}}catalyzed ether.
Amandla Okukhiqiza
-Izitifiketi Zokuphepha Komjikelezo Ogcwele
Izicelo Zomkhiqizo Ezinconyiwe
Ukuthengwa ngobuningi kwezitshalo zamakhemikhali ezithaka imithi nezinhle
Amaketango okunikezwayo kwendlu-yesikhathi eside endaweni efudumele noma enomswakama
Ukusebenza kokuvikela kwe-THP kugeleza ezitshalweni zokuhlola kanye{0}}nokwenyusa amaqoqo
I-resin, i-monomer, noma{0}}ukwakheka kwe-UV{0}}okuphulukisiwe okudinga amabhulokhi wokwakha we-THP
Ukuthunyelwa kwamanye amazwe kanye nozakwethu bokukhiqiza ama-toll
FAQ
Q: Yini eyenza le DHP izinze?
A: Kufaka phakathi iziqinisekiso zokulandelela (isb, i-BHT) ezivimbela ukwenziwa kwe-polymerization okuzenzakalelayo, ikakhulukazi ngaphansi kwezimo ezine-acidic noma ezifudumele.
Umbuzo: Ingabe isizinzisi sizophazamisa ukwakheka kwe-ether ye-THP?
IMP: Cha. Isiqinisi siyasetshenziswa noma asiphazamisi ngaphansi kwezimo ezijwayelekile ezine-asidi ezisetshenziselwa ukuvikela utshwala.
Q: Ingabe lokhu kungasetshenziswa ekuhlanganiseni kwemithi?
A: Yebo. Kunconywa ukuthi uqinisekise ukuhambisana kwesizinzisi nohlelo lwakho lokusebenza oluthile, ikakhulukazi ezindaweni ezilawulwayo.
Ukucaciswa
|
Izinto |
Okujwayelekile |
|
Ukubukeka |
Uketshezi olukhanyayo olungenambala |
|
Ubumsulwa (%) |
Kukhulu noma kulingana no-98.5 |
|
Umswakama (%) |
Ngaphansi noma kulingana no-0.25 |
|
I-THP(%) |
1.3 ubuningi |
| Ukuminyana (g/cm³) | 0.922 |
Amashadi ashisayo: high stability dhp, China high stability dhp abakhiqizi, abahlinzeki, imboni
