Vim li cas cellulose hu ua ib lub polymer?

Cellulose, feem ntau xa mus rau cov organic ntau tshaj plaws hauv ntiaj teb, yog qhov muaj txiaj ntsig zoo thiab cov qauv ntawm cov nroj tsuag thiab cov ntawv.

Kom nkag siab vim li casCelluloseyog categorized ua cov polymer, nws yog qhov tseem ceeb rau delve sib xyaw, cov teeb meem qauv, thiab tus cwj pwm nws qhia tawm ntawm macroscopic thiab qib microscopic thiab me me. Los ntawm kev kuaj xyuas cov nam no nkag siab, peb tuaj yeem elucidet cov polymer xwm ntawm cellulose.

Polymer Chemistry Cov Qauv:
Polymer kev tshawb fawb yog ib ceg ntawm chemistry uas cuam tshuam nrog kev kawm ntawm macromolecules, uas yog cov qauv loj uas muaj cov qauv kev paub ua cov monomers. Cov txheej txheem ntawm polymerization cuam tshuam nrog kev sib cog lus ntawm cov monomers los ntawm kev sib tw sib tw, sib tw ntev txoj saw hlau lossis networks.

Cellulose molecular qauv:
Cellulose feem ntau muaj cov pa roj carbon, hydrogen, thiab cov pa atoms, txheej txheem hauv cov kab saw hlau zoo li qauv. Nws cov theem pib tsim, cov piam thaj hauv cov piam thaj, ua hauj lwm ua cov monomeric pawg rau cellulose polymerization. Txhua chav dej qab zib nyob rau hauv lub cellulose saw txuas rau qhov txuas ntxiv ntawm Carbon-1 thiab Carbon-4 ntawm cov pab dej hauv HydroScose, uas cov tshuaj tiv thaiv condensation yaig los ua qhov txuas.

Polymeric xwm ntawm cellulose:

Rov qab ua dua tshiab: The β (1 → 4) glycosidic sib txuas hauv kev cellulose ua rau cov rov qab muaj cov piam thaj ua ke nrog cov ntaub pua nyias. Qhov kev rov ua dua no ntawm cov txheej txheem txheej txheem yog qhov tseem ceeb ntawm cov neeg polymers.
Siab molecular hnyav: cellulose molecules muaj ntau txhiab rau ntau lab ntawm cov chav dej qab zib, ua rau cov tshuaj hnyav hnyav, cov tshuaj yeeb tshuaj ntau.
Ntev saw qauv: cov kev npaj ntev ntawm cov chav dej qab zib hauv cov ntaub ntawv txuas ntxiv molecular chains
Kev sib xyaw sib xyaw ua ke: Molulose molecules kev sib tw hydrogen sib txuam hydrogen sib xyaw ntawm cov microfibrils thiab macroscopic qauv, xws li cellulose cov fibers.
Cov Cuab Yeej Siv Cov Neeg Kho Tshuab: Cov tshuab zog muaj zog thiab rigidity ntawm cellulose, tseem ceeb rau cov nroj tsuag cell phab ntsa, yog ntaus nqi rau nws cov polymer. Cov khoom no yog nco txog lwm cov ntaub ntawv polymer.
Biodegradity: txawm hais tias nws lub cellulose yog biodegradable, kawg enzymatic degradation ntawm cov chav dej qab zib, thaum kawg tsoo lub polymer mus rau hauv nws cov chaw ua haujlwm Monomers.

Cov ntawv thov thiab qhov tseem ceeb:
Cov polymer xwm ntawmCelluloseunderpins nws cov kev thov sib txawv thoob plaws ntau yam kev lag luam, suav nrog ntawv thiab pulp, textiles, tshuaj, thiab lub zog txuas ntxiv. Cellulose-based cov ntaub ntawv raug nqi rau lawv cov kev nplua mais, biodegrentability, txuas qhovsiab, ua rau lawv tsis tseem ceeb hauv haiv neeg niaj hnub.

Cellulose tsim nyog ua cov qauv molecular, uas muaj cov chav dej molecular, uas muaj cov saw hlau ntev, ua rau muaj cov hnyav ntev. Nws cov polymer xwm ua kom muaj nyob rau hauv ntau yam ntxwv, suav nrog kev tsim cov kev sib txuas ua ke thiab kev sib txuam, cov tshuab siv tshuab, thiab biodegradability. Kev nkag siab cellulose ua tus polymer yog pivotal rau kev siv nws cov ntawv thov myriad thiab harnessing nws muaj peev xwm nyob rau hauv kev txawj ntse thev naus laus zis.