Sei cellulose ichinzi polymer?

Cellulose, inowanzonzi ndiyo yakawanda kwazvo organic compound paPasi, imorekuru rinonakidza uye rakaomarara rine simba guru pane zvakasiyana-siyana zvehupenyu, kubva pakuumbwa kwezvirimwa kusvika pakugadzirwa kwemapepa nemachira.

Kuti unzwisise kuti seicelluloseyakarongedzerwa sepolymer, zvakakosha kuti utarise mukuumbwa kwayo kwemamorekuru, zvimiro, uye hunhu hwainoratidza pane ese macroscopic uye microscopic mazinga. Nekuongorora zvinhu izvi zvizere, tinogona kujekesa chimiro chepolymer che cellulose.

Polymer Chemistry Basics:
Sainzi yePolymer ibazi remakemikari rinobata nekudzidza kwema macromolecules, ari mamorekuru mahombe anoumbwa nekudzokorora zvikamu zvezvimiro zvinozivikanwa semamonomers. Iyo nzira yepolymerization inosanganisira kubatanidzwa kweaya monomers kuburikidza necovalent mabhondi, kugadzira cheni refu kana network.

Cellulose Molecular Structure:
Cellulose inonyanya kuumbwa nekabhoni, hydrogen, uye maatomu eokisijeni, akarongwa mumutsara-senge sechimiro. Iyo yekutanga chivakwa chekuvaka, iyo glucose molecule, inoshanda semonomeric unit ye ​​cellulose polymerization. Yega yega glucose unit mukati meketani ye cellulose yakabatana kune inotevera kuburikidza ne β (1 → 4) glycosidic linkages, uko hydroxyl (-OH) mapoka ari pacarbon-1 uye kabhoni-4 yeadhuze mayunitsi eglucose anopindirana necondensation reactions kuti iite kubatana.

Polymeric Chimiro cheCellulose:

Reperating Units: Iyo β(1→4) glycosidic linkages mu cellulose inokonzeresa kudzokororwa kwemayuniti eglucose pamwe neketani yepolymer. Uku kudzokororwa kwemayuniti ezvimiro chinhu chakakosha chepolymers.
Yakakwira Molecular Weight: Cellulose mamorekuru ane zviuru kusvika kumamiriyoni emayuniti eglucose, zvichitungamira kune akakwira mamorekuru uremu akafanana neepolymer zvinhu.
Yakareba Chain Mamiriro: Iyo mutsara kurongeka kwemayuniti eglucose mumaketani e cellulose anoumba cheni dzemamorekuru dzakatambanudzwa, zvakafanana kune hunhu hwecheni-senge zvimiro zvinoonekwa mumapolima.
Intermolecular Interactions: Cellulose mamorekuru anoratidza intermolecular hydrogen bonding pakati pemaketani ari padyo, achifambisa kuumbwa kwemicrofibrils uye macroscopic zvimiro, senge cellulose fiber.
Mechanical Properties: Iyo mechanic simba uye kuomarara kweselulosi, yakakosha kune kurongeka kwechimiro chechirimwa masero madziro, inoratidzwa kune yayo polymer hunhu. Izvi zvimiro zvinoyeuchidza zvimwe zvinhu zvepolymer.
Biodegradability: Pasinei nekusimba kwayo, cellulose inogona kuparara, ichiita enzymatic degradation ne cellulases, iyo inobvisa iyo glycosidic linkages pakati pemayuniti eglucose, pakupedzisira ichipwanya iyo polymer mune yayo inomiririra monomers.

Zvishandiso uye Kukosha:
Iyo polymer chimiro checelluloseinosimbisa mashandisirwo ayo akasiyana mumaindasitiri akasiyana siyana, anosanganisira mapepa uye pulp, machira, mishonga, uye simba rinogoneka. Cellulose-based zvinhu zvinokosheswa nekuwanda kwazvo, biodegradability, kuvandudzwa, uye kuita kwakasiyana-siyana, zvichiita kuti zvive zvakakosha munharaunda yemazuva ano.

cellulose inokodzera sepolymer nekuda kwechimiro chayo chema molecular, iyo inosanganisira kudzokorora mayuniti eglucose akabatanidzwa ne β (1 → 4) glycosidic bonds, zvichiita kuti maketani akareba ane huremu hwema molecular. Hunhu hwayo hwepolymer hunoratidza mumhando dzakasiyana siyana, kusanganisira kuumbwa kwemacheni akawedzerwa mamorekuru, kupindirana kweintermolecular, mechanical properties, uye biodegradability. Kunzwisisa cellulose sepolymer kwakakosha pakushandisa kwayo zviuru nezviuru zvekushandisa uye kushandisa kugona kwayo mumatekinoroji uye zvigadzirwa.