Cov tsub zuj zuj ntawm cov kab mob nyob rau saum npoo yog ib qho kev sib tw rau ob qho tib si shipping thiab biomedical industries.Ib co nrov anti-pollution coatings undergo oxidative degradation nyob rau hauv seawater, ua rau lawv ineffective lub sij hawm.Amphoteric ion (molecules nrog tsis zoo thiab zoo tsub nqi thiab ib tug nqi them. ntawm xoom) cov txheej txheem polymer, zoo ib yam li cov ntaub pua plag nrog cov saw hlau polymer, tau nyiam cov kev xaiv uas muaj peev xwm, tab sis tam sim no yuav tsum tau loj hlob nyob rau hauv ib qho chaw inert tsis muaj dej los yog huab cua.Qhov no tiv thaiv lawv los ntawm kev thov rau thaj chaw loj.
Ib pab neeg coj los ntawm Satyasan Karjana ntawm A * STAR Lub Tsev Haujlwm ntawm Tshuaj thiab Engineering Sciences tau tshawb pom yuav ua li cas npaj amphoteric polymer txheej hauv dej, chav tsev kub thiab huab cua, uas yuav ua rau lawv siv tau ntau qhov dav.
"Nws yog qhov kev tshawb pom tsis txaus ntseeg," piav qhia Jana.Nws pab neeg tau sim ua amphoteric polymer coatings siv txoj kev siv dav hu ua atom hloov radical polymerization, thaum lawv pom tau tias qee qhov kev cuam tshuam tsis tsim cov khoom xav tau.Ib amine tau pom poob nthav ntawm qhov kawg ntawm cov saw hlau polymer raws li ligand ntawm cov catalyst siv hauv cov tshuaj tiv thaiv.
Kinetic kev soj ntsuam, nuclear magnetic resonance spectroscopy (NMR) thiab lwm yam kev soj ntsuam qhia tias amines pib polymerization los ntawm anion mechanisms.Cov no hu ua anionic polymerizations tsis resistant rau dej, methanol, los yog huab cua, tab sis Jana cov polymers loj hlob nyob rau hauv lub xub ntiag ntawm tag nrho peb, ua rau pab neeg ua xyem xyav lawv qhov kev tshawb pom.Lawv tig mus rau cov qauv hauv computer kom pom tias muaj dab tsi tshwm sim.
Nws tau hais tias "Qhov no yog thawj qhov piv txwv ntawm anionic kua polymerization ntawm ethylene monomers nyob rau hauv nruab nrab aqueous nyob rau hauv ambient aerobic tej yam kev mob."
Tam sim no nws pab neeg tau siv txoj kev no los tsim cov txheej txheem polymer los ntawm plaub lub amphoteric monomers thiab ntau tus neeg pib anionic, qee qhov tsis yog amines. siv cov tshuaj tsuag los yog impregnation, "Jana hais tias.Lawv tseem npaj los kawm txog cov teebmeem ntawm cov coatings hauv Marine thiab biomedical applications.
Post lub sij hawm: Mar-18-2021