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Le ndlela intsha yokupolisha ivula ucango lokuthambisa ngakumbi

Ukuqokelelwa kweentsholongwane ngaphezulu ngumceli mngeni kuzo zombini ukuhambisa kunye ne-biomedical industry.Izinto ezithile ezithandwayo zokuthintela ungcoliseko lwepolymer zonakaliswa ukonakala kumanzi olwandle, kuzenza zingasebenzi ngokuhamba kwexesha.I-Amphoteric ion (iimolekyuli ezinezinto ezimbi nezintle kwaye intlawulo iyonke Zero) ukutyabeka okufana neephephethi ezinamatyathanga epolymer, kutsale umdla njengezinye iindlela, kodwa okwangoku kufuneka zikhuliswe kwindawo engenawo amanzi ngaphandle kwamanzi okanye umoya. Oku kubathintela ekufakeni izicelo kwiindawo ezinkulu.

Iqela elikhokelwe nguSatyasan Karjana kwiZiko le-A * STAR lezeNzululwazi ngezeMichiza kunye nezoBunjineli lifumene indlela yokulungisa i-amphoteric polymment enamathela emanzini, kwigumbi lobushushu nasemoyeni, eya kuthi ibenze ukuba isetyenziswe kwinqanaba elibanzi kakhulu.

UJana ucacisa esithi: "Yayikukufumanisa okungathandekiyo." Iqela lakhe lalizama ukwenza i-amphoteric polymment yokutyabeka lisebenzisa indlela esetyenziswa ngokubanzi ebizwa ngokuba yi-atom transfer radical polymerization, xa bafumanisa ukuba ezinye iimpendulo azivelisi imveliso efunwayo. ukuphela kwetyathanga le-polym njengeligand kwi-catalyst esetyenzisiweyo ekuphenduleni. "Kuya kuthatha ixesha kunye nothotho lwamalinge ukutyhila le mfihlakalo [yendlela eya ngayo apho]," ucacisa uJana.

Ukuqwalaselwa kweKinetic, i-spectroscopy yenyukliya (i-NMR) kunye nolunye uhlalutyo lubonisa ukuba ii-amines ziqala ipolymerization ngokusebenzisa iindlela ze-anion Ezi zinto zibizwa ngokuba yi-anionic polymerizations ayimelani namanzi, i-methanol, okanye umoya, kodwa iipolymer zikaJana zikhule zikhona zontathu, kukhokelela iqela ekuthandabuzeni iziphumo zabo Bajika kwiimodeli zekhompyuter ukuze babone ukuba kwenzeka ntoni.

"Ubuninzi bezibalo zedatha yokusebenza kuqinisekisa inkqubo ecetywayo ye-anionic polymerization," utshilo. "Lo ngumzekelo wokuqala wesisombululo se-anionic yesisombululo se-ethylene monomers kwindawo enamanzi aphantsi kweemeko ezijikelezayo zomoya."

Iqela lakhe ngoku lisebenzise le ndlela ukudibanisa izinto zokuthambisa ze-polymer ukusuka kwi-monomers ezine ze-amphoteric kunye nenani labaqalisi be-anionic, ezinye zazo ezingezizo ii-amine. ”Kwixesha elizayo, siza kusebenzisa le ndlela ukwenza i-biofilt-resistant polymer layers kwiindawo ezinkulu zomhlaba. usebenzisa iindlela zokutshiza okanye ukumitha.

 


Ixesha lokuposa: Mar-18-2021