Video: Mono polymer yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Polymers yog chains nrog ib tug unspecified tooj ntawm monomeric units. a polymer . Homopolymers yog polymers ua los ntawm kev koom ua ke monomers ntawm tib cov tshuaj muaj pes tsawg leeg lossis cov qauv. a polymer muaj tag nrho cov tib monomer. Heteropolymers yog polymers tsim los ntawm ntau tshaj ib hom monomer.
Yog li ntawd, dab tsi yog lub ntsiab lus yooj yim polymer?
A polymer yog ib qho molecule, ua los ntawm kev sib koom ua ke ntau lub me me molecules hu ua monomers. Lo lus " polymer "tuaj yeem tawg ua "poly" (lub ntsiab lus "ntau" hauv Greek) thiab "mer" (lub ntsiab lus "unit"). Proteins muaj polypeptide molecules, uas yog ntuj. polymers ua los ntawm ntau yam amino acid monomer units.
Qhov thib ob, polymer xav li cas? Yog li, yam uas yog ua los ntawm polymers saib, xav , thiab ua raws li lawv cov atoms thiab molecules li cas yog kev cob cog rua, raws li zoo raws li qhov twg peb siv los pib! Ib txhia yog roj hmab, zoo li a bouncy pob, qee yog nplaum thiab gooey, thiab qee yam yog nyuaj thiab nyuaj, zoo li a daim skateboard. Qhov no yog ib polymer . Nws yog a loj heev molecule.
Kuj Paub, piv txwv li polymer yog dab tsi?
Piv txwv ntawm hluavtaws polymers muaj xws li nylon, polyethylene, polyester, Teflon, thiab epoxy. Ntuj polymers tshwm sim hauv qhov thiab tuaj yeem muab rho tawm. Lawv feem ntau yog siv dej. Piv txwv ntawm naturally tshwm sim polymers yog silk, wool, DNA, cellulose thiab proteins.
Puas yog glycogen yog monomer lossis polymer?
nws yog ib chav, yog li a qabzib molecule yog ib qho monomer (tshwj xeeb tshaj yog monosaccharide) Nws tuaj yeem tsim cov polymer (ua hmoov nplej los yog glycogen) thaum muaj coob tus qabzib molecules koom ua ke los ntawm glycosidic bonds.
Pom zoo:
Dab tsi yog composite hauv polymer?
Ib qho polymer sib xyaw yog cov khoom siv ntau theem hauv cov khoom siv ntxiv nrog cov polymer matrix, uas ua rau cov khoom siv sib xyaw ua ke uas tsis tuaj yeem ua tiav los ntawm ob qho tib si ib leeg [1]
Polymer txheej yog dab tsi?
Polymer txheej yog xim los yog txheej uas yog ua los ntawm polymers. Ib qho polymer yog ib yam khoom uas muaj cov qauv molecular uas feem ntau muaj ntau yam zoo sib xws. Qhov no suav nrog cov khoom siv hluavtaws organic xws li resins thiab plastics
Dab tsi yog qhov tseeb polymer?
Biological polymers yog cov molecules loj uas muaj ntau yam zoo sib xws me me molecules txuas ua ke nyob rau hauv ib tug zoo xws li saw. Cov me me molecules yog hu ua monomers. Thaum me me cov organic molecules koom ua ke, lawv tuaj yeem tsim cov molecules loj lossis polymers
Dab tsi yog qhov polymer ntawm Teflon?
PTFE yog vinyl polymer, thiab nws cov qauv, yog tias tsis yog nws tus cwj pwm, zoo ib yam li polyethylene. Polytetrafluoroethylene yog tsim los ntawm monomer tetrafluoroethylene los ntawm dawb radical vinyl polymerization
Dab tsi yog cross-linked polymer?
Hla-txuas yog ib daim ntawv cog lus uas txuas ib cov saw hlau polymer mus rau lwm cov saw hlau polymer. Yog li cross-linked polymers yog cov polymers uas tau txais thaum hla kev sib txuas ua ke ntawm monomeric units. Cov ntoo khaub lig-txuas polymer tsim cov saw ntev, ceg ntoo lossis kab, uas tuaj yeem tsim cov kab sib txuas ntawm cov khoom siv polymer