Cov Polymers Ntuj: Kev Tsim Kho Tshiab thiab Cov Txiaj Ntsig hauv Lub Neej Txhua Hnub Polymers yog cov molecule loj uas muaj cov units rov ua dua hu ua monomers, txuas los ntawm cov bonds covalent. Polymers pom muaj nyob rau hauv ntau hom thiab ua lub luag haujlwm tseem ceeb hauv lub neej txhua hnub. Polymers raug muab faib ua ob pawg tseem ceeb: cov polymers hluavtaws thiab cov polymers ntuj. Hauv tsab xov xwm no, ... Nyeem ntxiv
Kev Poob Qis Yas: Teeb Meem thiab Kev Dais Teeb Meem rau Ib Puag Ncig Kev Taw Qhia Yas tau dhau los ua ib feem tseem ceeb ntawm peb lub neej txhua hnub. Tshawb pom thaum ntxov xyoo pua 20th, cov khoom siv no tau dhau los ua ib qho ntawm cov kev hloov pauv tseem ceeb tshaj plaws, hloov pauv ntau yam ntawm tib neeg lub neej. Nws lub peev xwm los ua pwm rau ntau yam khoom, nrog rau nws lub zog thiab kev ruaj khov nyob rau hauv kev nyuaj siab, ua rau nws yog ib qho... Nyeem ntxiv
Piv txwv ntawm Yas: Cov Khoom Siv Khawv Koob uas Hloov Lub Ntiaj Teb Yas yog ib qho ntawm cov khoom tsim tshiab tshaj plaws hauv keeb kwm tib neeg. Nrog nws qhov kev ywj pheej, kev ruaj khov, thiab lub peev xwm los ua pwm rau hauv ntau yam duab, yas tau hloov pauv ntau yam ntawm lub neej niaj hnub, los ntawm kev lag luam mus rau lub neej txhua hnub. Tsab xov xwm no yuav tham txog qee hom yas siv ntau tshaj plaws, lawv cov khoom, thiab piv txwv hauv… Nyeem ntxiv
Yas: Ib Yam Khoom Siv Tau Ntau Yam Nrog Ntau Yam Kev Cuam Tshuam - Yas yog ib qho ntawm cov khoom siv tau ntau yam thiab siv dav tshaj plaws hauv ntiaj teb niaj hnub no. Ua los ntawm ntau yam khoom siv polymers organic, yas tau hloov ntoo, hlau, thiab iav hauv ntau daim ntawv thov txij li thaum nws tshawb pom thiab siv thawj zaug thaum ntxov xyoo pua 20th. Txawm li cas los xij, txawm tias nws muaj txiaj ntsig zoo, yas ... Nyeem ntxiv
Kev Sib Raug Zoo ntawm Cov Qauv thiab Cov Khoom ntawm Polymers Polymers yog macromolecules uas muaj cov chav me me rov ua dua, hu ua monomers. Ntau hom polymers pom muaj nyob rau hauv xwm thiab kuj tuaj yeem tsim tau artificially. Piv txwv ntawm cov polymers ntuj suav nrog cov protein, DNA, thiab cellulose, thaum cov polymers hluavtaws suav nrog polyethylene, polystyrene, nylon, thiab polypropylene. Ib yam li cov molecule loj, cov qauv ntawm… Nyeem ntxiv
Cov Hom Polymers: Ntau Yam Khoom Siv Uas Tab Tom Hloov Pauv Lub Ntiaj Teb Polymers yog cov khoom sib xyaw ua los ntawm cov molecule loj uas tsim los ntawm kev hloov cov molecule me me hu ua monomers. Polymers muaj ntau hom thiab muaj ntau yam khoom sib txawv, ua rau lawv muaj ntau yam khoom siv tau zoo heev. Hauv tsab xov xwm no, peb yuav tshawb nrhiav cov hom polymers feem ntau, lawv ua haujlwm li cas, thiab lawv siv li cas… Nyeem ntxiv
Kev Ua Kom Muaj Polymerization: Cov Txheej Txheem, Mechanism, thiab Cov Ntawv Thov Polymerization yog ib qho txheej txheem tshuaj lom neeg uas cov monomers sib cuam tshuam los tsim cov saw polymer ntev. Muaj ob hom polymerization tseem ceeb: kev ntxiv polymerization thiab kev ua kom muaj polymerization. Tsab xov xwm no yuav tham txog kev ua kom muaj polymerization tob tob - los ntawm nws cov lus txhais thiab cov txheej txheem mus rau nws cov ntawv thov thiab cov txiaj ntsig. Kev txhais ntawm Kev Ua Kom Muaj Polymerization Kev ua kom muaj polymerization yog ib hom ... Nyeem ntxiv
Kev Ntxiv Polymerization: Lub Txheej Txheem, Daim Ntawv Thov, thiab Cov Txiaj Ntsig Hauv Kev Lag Luam Kev Taw Qhia Polymerization yog ib qho tshuaj lom neeg uas cov molecules monomer me me sib xyaw ua ke los tsim cov macromolecules loj hu ua polymers. Ib qho ntawm cov hom polymerization feem ntau yog kev ntxiv polymerization. Tsab xov xwm no lub hom phiaj yog piav qhia txog lub hauv paus ntsiab lus ntawm kev ntxiv polymerization, nws ntau yam kev siv tseem ceeb hauv kev lag luam, thiab nws cov txiaj ntsig… Nyeem ntxiv
Kev Tshuaj Xyuas Polymerization Kev Taw Qhia Polymers yog cov tshuaj sib xyaw ua ke uas muaj cov molecule loj, ntev-saw ua los ntawm cov chav rov ua dua hu ua monomers. Polymerization yog cov txheej txheem tshuaj uas cov monomers no sib xyaw ua ke los tsim cov polymers. Cov txheej txheem no yog qhov tseem ceeb hauv kev lag luam tshuaj lom neeg thiab pab txhawb rau kev tsim ntau yam khoom siv muaj nqis, suav nrog cov yas, roj hmab, thiab cov xov hluavtaws. … Nyeem ntxiv
Kev Txhais thiab Cov Qauv ntawm Polymers Polymers yog macromolecules uas muaj ntau lub units rov ua dua yooj yim, hu ua monomers, sib txuas ua ke los ntawm cov bonds covalent. Lo lus "polymer" los ntawm Greek lo lus "poly," txhais tau tias "ntau," thiab "meros," txhais tau tias "ib feem" lossis "unit." Polymers tuaj yeem yog ntuj lossis hluavtaws, thiab lawv ua lub luag haujlwm tseem ceeb ... Nyeem ntxiv