Waa maxay sababta cellulose loogu yeero polymer?

Cellulose, oo inta badan loogu yeero isku-dhafka dabiiciga ah ee ugu badan ee Dunida, waa unug soo jiidasho leh oo kakan oo saameyn weyn ku leh dhinacyo kala duwan oo nolosha ah, oo u dhexeeya qaab dhismeedka dhirta ilaa soo saarista waraaqaha iyo dunta.

Si loo fahmo sababtacellulosewaxaa loo kala saaraa sidii polymer-ka, waa lama huraan in la dhex geliyo hal-abuurka molecular, sifooyinka dhismaheeda, iyo hab-dhaqanka ay ku muujiso heerarka makroscopic iyo microscopic labadaba. Marka aan si buuxda u baadhno dhinacyadan, waxaynu caddayn karnaa dabeecadda polymer ee cellulose.

Aasaaska Kiimikada Polymer:
Sayniska Polymer waa laan ka mid ah kimisteriga oo ka shaqeeya daraasadda makromolecules, kuwaas oo ah unugyo waaweyn oo ka kooban unugyo dhismeed oo soo noqnoqda oo loo yaqaan monomers. Habka polymerization-ku wuxuu ku lug leeyahay isku-xidhka monomers-yadan iyada oo loo marayo curaarta wadajirka ah, samaynta silsilado dhaadheer ama shabakado.

Qaab dhismeedka molecular Cellulose:
Cellulose waxay ugu horrayn ka kooban tahay kaarboon, hydrogen, iyo atamka oksijiinta, oo lagu habeeyey qaab-dhismeedka silsilad toosan oo kale ah. Dhismaheeda aasaasiga ah, molecule gulukooska, wuxuu u adeegaa sidii unugga monomeric ee polymerization cellulose. Qayb kasta oo gulukoos ah oo ku dhex jirta silsiladda cellulose waxay ku xiran tahay tan xigta iyada oo loo marayo β(1→4) isku xirka glycosidic, halkaasoo kooxaha hydroxyl (-OH) ee kaarboon-1 iyo kaarboon-4 ee unugyada gulukooska ee ku xiga ay maraan falcelinta uumiga si ay u sameeyaan isku xirka.

Dabeecadda Polymeric ee Cellulose:

Unugyada soo noqnoqda: β(1→4) isku xirka glycosidic ee cellulose waxay keenaysaa ku celcelinta unugyada gulukooska ee silsiladda polymer. Ku celcelinta cutubyada qaabdhismeedku waa sifada aasaasiga ah ee polymers.
Miisaanka Molecular Sare: Unugyada Cellulose waxay ka kooban yihiin kumanaan ilaa malaayiin unug gulukoos ah, taasoo horseedaysa miisaan sare oo unugyo ah oo ah walxaha polymer.
Qaabdhismeedka Silsiladda Dheer: Habaynta toosan ee unugyada gulukoosta ee silsiladaha cellulose waxay samaysaa silsilado unugyo fidsan, oo la mid ah qaab-dhismeedka silsiladda u eg ee lagu arkay polymers.
Isdhexgalka molecular: Moleekuleyaasha Cellulose waxay muujinayaan isku xidhka hydrogen intermolecular ee u dhexeeya silsiladaha ku xiga, fududaynta samaynta microfibrils iyo qaabdhismeedka macroscopic, sida fiilooyinka cellulose.
Guryaha Makaanikada: Awoodda farsamada iyo qallafsanaanta cellulose, lagama maarmaanka u ah qaabdhismeedka qaabdhismeedka derbiyada unugyada dhirta, waxaa loo aaneynayaa dabeecadeeda polymer. Guryahani waxay xasuusinayaan walxaha kale ee polymer-ka.
Biodegradability: Inkasta oo ay adag tahay, cellulose waa biodegradable, oo ku socda hoos u dhigista enzymatic by cellulases, kaas oo hydrolyze isku xirka glycosidic ee u dhexeeya unugyada gulukooska, ugu dambeyntiina jebiya polymer-ka monomers-yada ka kooban.

Codsiyada iyo Muhiimada:
Dabeecadda polymer eecelluloseWaxay taageertaa codsiyadeeda kala duwan ee warshadaha kala duwan, oo ay ku jiraan waraaqaha iyo saxarka, dunta, dawooyinka, iyo tamarta la cusboonaysiin karo. Alaabooyinka ku salaysan Cellulose waxaa lagu qiimeeyaa badnaantooda, biodegradability, dib-u-cusbooneysiin, iyo wax-ku-bedelnaantooda, taasoo ka dhigaysa mid aan looga maarmin bulshada casriga ah.

cellulose waxay u qalantaa sidii polymer sababtoo ah qaab dhismeedka molecular, kaas oo ka kooban unugyo gulukoos oo soo noqnoqda oo ku xiran β(1→4) glycosidic bonds, taasoo keentay silsilado dhaadheer oo miisaankoodu sarreeyo. Dabeecaddeeda polymer-ka ayaa ka muuqata sifooyin kala duwan, oo ay ku jiraan samaynta silsilado kelli ah oo fidsan, isdhexgalka intermolecular, sifooyinka farsamada, iyo biodegradability. Fahamka cellulose sida polymer-ka ayaa muhiim u ah ka faa'iidaysiga tirada badan ee codsiyadeeda iyo ka faa'iidaysiga awooddeeda tignoolajiyada iyo agabka waara.