Diacetone Acrylamide (DAAM)

Tlhaloso e Khutšoanyane:

Moetsi le Mofani oa Diacetone Acrylamide (DAAM)

Diacetone acrylamide(DAAM) ke motsoako oa lik'hemik'hale o leng sehlopheng sa li-derivatives tsa acrylamide. Hangata o sebelisoa k'hemistri ea polymer 'me o ka sebetsa e le monomer tlhahisong ea li-polymer tse fapaneng, haholo-holo tse sebelisoang ho koaheleng, likhomaretsi le metsoako. Sebopeho sa lik'hemik'hale sa DAAM se na le sehlopha sa acrylamide (sehlopha sa vinyl se hoketsoeng sehlopheng sa carbonyl) le karolo ea acetone.

Thepa ea DAAM e ka fapana ho latela polymerization ea eona. Ka tloaelo, DAAM e sebelisoa ho kopanyeng li-polymer tse nang le litšobotsi tse lakatsehang tse kang ho khomarela ho ntlafetseng, ho tenyetseha le ho hanyetsa mabaka a tikoloho joalo ka mocheso le mongobo.

Karolo e 'ngoe ea bohlokoa ea DAAM ke bokhoni ba eona ba ho feta polymerization ea free radical, moo e arabelang le li-monomer tse ling (kapa ka boeona) ho etsa li-polymer. Li-polymer tsena li ka sebelisoa lits'ebetsong tse fapaneng tsa indasteri, ho kenyeletsoa le li-thickeners, li-crosslinkers, kapa nts'etsopele ea li-resin tse khethehileng.

Romella imeile ho rona Khoasolla e le PDF

Qaqiso ea Sehlahisoa

Li-tag tsa Sehlahisoa

Diacetone AcrylamideMofani le feme (DAAM)

Diacetone acrylamide(DAAM) ke motsoako o feto-fetohang oa lintho tse phelang o sebelisoang haholo saenseng ea polymer, theknoloji ea ho koahela le saense ea thepa. Ke monomer ea maiketsetso e hapileng tlhokomelo e kholo ka lebaka la litšobotsi tsa eona tse ikhethang tsa lik'hemik'hale, tse kang ho sebetsa ka matla haholo, bokhoni ba ho theha meaho e fapaneng ea polymer, le bokhoni ba lits'ebetso tse fapaneng tsa ts'ebetso. DAAM e bapala karolo ea bohlokoa ho ntlafatseng litšobotsi tsa polymer, liphahlo, likhomaretsi le metsoako.

1. Sebopeho sa Lik'hemik'hale le Thepa ea Diacetone Acrylamide

Diacetone acrylamide ke derivative ea acrylamide, moo sehlopha sa acrylamide se nkeloang sebaka ke karolo ea acetone boemong ba naetrojene. Foromo ea lik'hemik'hale ea DAAM keC₆H₁₁NO₂, 'me boima ba eona ba limolek'hule bo ka ba129.17 g/mol.

Sebopeho sa DAAM se na le:

An sehlopha sa acrylamide(CH₂=CH-C(=O)-NH-), e leng karolo ea bohlokoa e arabelang ea molek'hule.
A sehlopha sa diacetone(C₄H₇O₂), e hokahaneng le naetrojene ea acrylamide.

Nomoro ea CAS: 2873-97-4
TSCA: 2873-97-4
EINECS :220-713-2
ENCS :2-1024

Likaroloana

Diacetone acrylamide e etsa polymer habonolo mme e theha di-copolymer ka mefuta e mengata ya di-comonomers
Diacetone acrylamide e arabela le sehlopha sa ketone sa adipic acid dihydrazide mochesong o tloaelehileng.

Boteng basehlopha se sebetsang sa acrylamidee lumella DAAM ho etsa polymer ka tsela e ts'oanang le tse lingli-monomer tse thehiloeng ho acrylamide, hasebopeho sa diacetonee fana ka tšitiso e matla e susumetsang ts'ebetso ea eona le thepa ea 'mele. Sehlopha sa acetone se boetse se etsa hore motsoako o qhibilihe haholoanyane ka har'a li-solvents tsa organic.

2. Ho kopanngoa ha Diacetone Acrylamide

Ho qaptjoa ha DAAM ho kenyelletsa ts'ebetso ea mehato e 'meli:

Ho kopanya ha acrylamide le acylation: Mohato ona wa pele o kenyeletsa ho sebetsana le acrylamide le acetone moo ho nang le asiti kapa setsi sa catalyst. Acetone e sebetsana le athomo ea naetrojene ea acrylamide ho etsa derivative ea diacetone.
Tlhoekiso: Hang ha karabelo e phethehile, sehlahisoa hangata se hloekisoa ka mekhoa ea ho qhibilihisa kapa ho etsa kristale ho arolaMonomer ea DAAMka sebopeho sa yona se hlwekileng.

Karabelo e ka hlalosoa e le:

Acrylamide (CH₂=CH-C(=O)-NH₂)e arabela le acetone (CH₃COCH₃) ho etsa diacetone acrylamide (CH₂=CH-C(=O)-NH-CH₂COCH₃).

Ho kopanngoa ha DAAM ho bonolo haholo, empa taolo e nepahetseng ea maemo a karabelo (mohlala, mocheso, nako ea karabelo, khetho ea tharollo) ea hlokahala ho fihlela chai e phahameng le bohloeki.

3. Ho etsa hore Diacetone Acrylamide e be polymer

Tšobotsi ea bohlokoa ka ho fetisisa ea DAAM ke bokhoni ba eona ba ho fetapolymerization ea mahala ea radicalSehlopha sa acrylamide ho DAAM se ka nka karolo ho dikarabelong tsa polymerization tse eketsehileng, tse dumellang DAAM ho hokahana le di-monomer tse ding kapa yona ka boyona ho theha diketane tse telele tsa polymer. Sena se etsa hore DAAM e be monomer e thusang tlhahisong ya di-polymer tse nang le thepa e fapaneng.

Ho polymerization ha DAAM ho ka tsoela pele ka:

Homopolymerization: Monomer ea DAAM e arabela le li-monomer tse ling tsa DAAM, e etsa polymer e nang le li-unit tsa DAAM ka botlalo.
Li-copolymer: DAAM e ka boela ea kopanngoa le li-monomer tse ling tse thehiloeng ho acrylate, methacrylate, kapa vinyl ho etsa li-copolymer tse nang le thepa e etselitsoeng motho ka mong. Sena se lumella ho kenyelletsoa ha lihlopha tse itseng tse sebetsang tse fanang ka litšobotsi tse khethehileng ho polymer.

Li-free radical tse qalang (mohlala,AIBN, BPO) kapa mabone a UV hangata a sebediswa ho qala tshebetso ya polymerization. Se hlahangLi-polymer tse thehiloeng ho DAAMe ka ba le mefuta e mengata ea thepa ho latela tekanyo ea polymerization, boteng ba li-agent tse hokahanyang, le mofuta oa li-co-monomer tse sebelisoang.

Matlo

Ponahalo	Phofo ea mapetso a masoeu ho isa ho a mosehla hanyane
Foromo	C₉H₁₅NO₂
Boima ba mol.	169.23
Matla a khoheli a itseng (60°C)	0.998
Sebaka sa ho qhibiliha	56°C
Sebaka sa ho belisa	120°C (8 mm Hg)
Ho qhibiliha ha metsi ka har'a metsoako ea lintho tse phelang	>100g/100g H₂O Miscible
Tg (homo-polymer)	77°C (DSC)
Ho thibana ha metsi (60°C)	17.9 m Pa·s

Copolymerization

M1	M2	r1	r2	Q1	e1	Q2	e2
Styrene	Diacetone acrylamide	1.77 ± 0.08	0.49 ± 0.06	1.00	-0.80	0.42	-0.42
Methyl methacrylate	Diacetone acrylamide	1.68 ± 0.06	0.57 ± 0.03	0.74	0.04	0.41	-0.02

4. Tshebediso ya Diacetone Acrylamide

4.1. Liaparo le Lipente

DAAM e sebelisoa haholo ho thehengmekhabiso le lipenteka lebaka la bokhoni ba eona ba ho etsa li-polymer tse khomarelang ka matla, ho tenyetseha le ho hanyetsa mabaka a tikoloho. Lifilimi tsa polymer tse hlahang li bonts'a ts'ebetso e ntlafetseng ha li bapisoa le liaparo tsa setso tsa acrylic kapa tsa polyester.

Lisebelisoa tse ling tse ikhethileng li kenyelletsa:

Liaparo tse sireletsang: Li-polymer tse thehiloeng ho DAAM li fana ka khanyetso e ntle haholo mochesong, mongobong le ho khohlana, e leng se etsang hore li be ntle bakeng sa tšebeliso ea liaparo tsa likoloi, tsa indasteri le tsa leoatleng.
Likhomaretsi: Ho polymerization ha DAAM ho ka lebisa ho likhomaretsi tse etsang maqhama a matla le libaka tse fapaneng, ho kenyeletsoa litšepe, polasetiki le khalase.
Liaparo tse thibelang ho senya: Lifilimi tse tenyetsehang le tse tšoarellang tse entsoeng ka li-polymer tse thehiloeng ho DAAM li sebelisoa liindastering tse hlokang lipente tse thibelang ho bola tse sebetsang hantle.

4.2. Li-polymer tse monyang haholo

DAAM e sebelisoa ntshetsopeleng eali-polymer tse monyang haholo(Mapolesa a Amerika), e leng thepa e kgonang ho monya metsi a mangata kapa maro a mang. Thepa ena hangata e sebediswa ditshebedisong tse kang:

Lihlahisoa tsa bohloeki: Li-SAP tse thehiloeng ho DAAM li fumanoa lihlahisoa tse kang maleiri, li-napkin tsa bohloeki, le lihlahisoa tsa ho se itšoare hantle ha batho ba baholo.
Lisebelisoa tsa temo: Li-polymer tse monyang metsi haholo tse entsoeng ka DAAM li ka sebelisoa lits'ebetsong tsa temo ho ntlafatsa ho boloka metsi mobung.

4.3. Litšebeliso tsa Bongaka le tsa Biomedical

Ka lebaka la ho lumellana ha eona le ho tenyetseha ha eona, DAAM e boetse e hlahlojoa homasimo a bongaka le a bongaka. Mohlala:

Mekhoa ea ho fana ka lithethefatsi: Li-polymer tse thehiloeng ho DAAM li ka etsoa hore li fane ka meriana ka tsela e laoloang, li fane ka tokollo e telele kapa li shebane le lisele tse itseng.
Boenjiniere ba lisele: Thepa e tenyetsehang le e lumellanang ea li-polymer tse thehiloeng ho DAAM e etsa hore li lokele ho sebelisoa li-scaffold bakeng sa boenjiniere ba lisele, masela a maqeba le lisebelisoa tse ling tsa bongaka.

4.4. Sebopeho sa Hydrogel

Li-hydrogel tse entsoeng ka DAAM li sebelisoa lits'ebetsong tse fapaneng ka lebaka la thepa ea tsona e phahameng ea ho boloka metsi. Li-hydrogel tsena li ka sebelisoa ho:

Tlhokomelo ea maqeba: Li-hydrogel li fana ka tikoloho e mongobo bakeng sa pholiso ea maqeba, li fokotsa kotsi ea tšoaetso le ho potlakisa ts'ebetso ea pholiso.
Mekhoa ea litlolo: Li-hydrogel tse entsoeng ka DAAM li sebelisoa lihlahisoa tsa tlhokomelo ea letlalo, ho kenyeletsoa le li-moisturizer le litlolo tse thibelang botsofali, ka lebaka la bokhoni ba tsona bo botle ba ho nolofatsa letlalo.

4.5. Tlhahiso ea Nanomaterial le ea Composite

DAAM e boetse e sebelisoa ho lokisengli-nanocompositele e tsoetseng pelethepa e thehiloeng ho polymerMohlala, DAAM e ka polymerisoa ka nanoparticles ho etsa thepa e kopantsoeng ka thepa e ntlafalitsoeng ea mechini, motlakase kapa mocheso. Lisebelisoa tsena li ka sebelisoa liindastering tse fapaneng, ho kenyeletsoa:

Lisebelisoa tsa elektroniki: Li-nanocomposite tsa polymer tse entsoeng ka DAAM li ka sebelisoa lisebelisoa tsa elektroniki tse tenyetsehang le thepa e tsamaisang motlakase.
Lifofane: Metswako e thehiloeng ho DAAM e sebediswa bakeng sa thepa ya yona e bobebe le e matla haholo ditshebedisong tsa sefofane.

4.6. Litšebeliso tsa Khatiso le tsa Masela

Indastering ea masela, DAAM e sebelisoa ho hlahisa masela a nang le botsitso bo eketsehileng le ho tenyetseha. Mohlala,liaparo tse sebetsange thehiloeng ho DAAM e ka sebelisoa masela ho etsa hore a hanele metsi, matheba le mahlaseli a UV haholoanyane. Ka ho tšoanang, DAAM e ka sebelisoa tlhahisong eaenke ea khatiso, moo bokgoni ba yona ba ho etsa difilimi tsa boleng bo hodimo bo thusang ho fihlella ho hlaka le ho tshwarella ha kgatiso hamolemo.