Qhov sib txawv tseem ceeb ntawm kev coj ua thiab tsis ua cov polymers yog cov khoom siv polymers tuaj yeem ua hluav taws xob, qhov tsis ua cov polymers tsis tuaj yeem ua hluav taws xob.
Polymers yog macromolecules uas muaj cov lej ntau dua. Cov chav rov ua dua no sawv cev rau cov monomers uas tau siv los ua cov khoom siv polymer. Muaj covalent tshuaj bonds ntawm monomers. Muaj ntau pawg ntawm polymers. Raws li lawv lub peev xwm los ua hluav taws xob, peb tuaj yeem faib cov polymers ua ob hom ua cov polymers thiab tsis ua cov polymers.
Kev Ua Polymer yog dab tsi?
Kev ua cov khoom siv hluav taws xob lossis cov khoom siv hluav taws xob yog cov khoom siv polymer uas muaj peev xwm ua hluav taws xob los ntawm cov khoom siv polymer. Cov no tseem hu ua intrinsically conducting polymers lossis ICPs. Cov ntaub ntawv no tuaj yeem muaj tus cwj pwm ntawm cov khoom siv hlau lossis cov khoom siv semiconductor.
Feem ntau, kev ua cov polymers tsis yog cov khoom siv thermoplastic lossis cov khoom siv thermoformable. Lawv yog cov khoom siv organic zoo ib yam li feem ntau cov ntaub ntawv insulating. Cov cuab yeej tseem ceeb tshaj plaws ntawm cov ntaub ntawv no yog kev ua tiav los ntawm kev tawg. Lawv tsis qhia txhua yam khoom zoo ib yam li lwm cov ntaub ntawv polymer tab sis muaj peev xwm muab cov hluav taws xob hluav taws xob siab. Ntxiv mus, peb tuaj yeem kho cov khoom hluav taws xob zoo ntawm cov ntaub ntawv no los ntawm txoj hauv kev xws li organic synthesis thiab cov txheej txheem dispersion siab heev.
Cov chav kawm loj ntawm kev ua cov khoom siv polymers suav nrog cov pob txha nraub qaum polymer dub thiab cov copolymer ntawm cov khoom ntawd. Qee qhov piv txwv rau qee cov organic conductive polymers suav nrog polyfluorenes, polypyrenes, polyazulenes, polyphenylenes, thiab lwm yam.
Daim duab 01: Qee qhov piv txwv ntawm Kev Ua Cov Polymers - polyacetylene; polyphenylene vinylene; polypyrrole (X=NH) thiab polythiophene (X=S); thiab polyaniline (X=NH) thiab polyphenylene sulfide (X=S) [Los ntawm sab laug clockwise
Thaum xav txog kev tsim cov khoom siv hluav taws xob polymer, peb tuaj yeem npaj lawv los ntawm ntau txoj kev. Cov txheej txheem feem ntau yog oxidative coupling ntawm monocyclic precursors. Ob txoj hauv kev rau kev tsim cov khoom no yog tshuaj synthesis thiab electro-copolymerization.
Nws tuaj yeem muaj ntau yam ua rau muaj kev cuam tshuam ntawm conductive polymers. Qee yam ntawm cov khoom no ua rau muaj kev cuam tshuam ntawm cov khoom siv polymer xws li valance electrons, conjugated systems, delocalized orbitals, thiab lwm yam.
Dab tsi yog cov khoom siv Polymer?
Tsis yog cov khoom siv polymers lossis tsis yog cov khoom siv hluav taws xob yog cov polymers uas yog cov khoom siv hluav taws xob. Cov ntaub ntawv no feem ntau yog thermoplastic thiab thermosetting polymer bonding khoom. Cov ntaub ntawv no muaj txiaj ntsig zoo rau kev tswj xyuas thermal ntawm semiconductors thiab lwm yam kev siv hluav taws xob.
Peb tuaj yeem siv cov ntaub ntawv tsis yog polymer rau ntau yam khoom siv, hluav taws xob, thiab thermal, uas tuaj yeem siv rau kev txuas mus ib ntus lossis txuas mus tas li.
Dab tsi yog qhov txawv ntawm Kev Ua thiab Tsis Ua Cov Polymers?
Peb tuaj yeem faib cov polymers ua ob hom ua thiab tsis ua cov polymers raws li lawv cov khoom siv. Yog li ntawd, qhov sib txawv tseem ceeb ntawm kev coj ua thiab tsis ua cov polymers yog cov khoom siv polymers tuaj yeem ua hluav taws xob, qhov tsis ua cov polymers tsis tuaj yeem ua hluav taws xob. Linear caj qaum polymer dub thiab cov copolymers ntawm cov khoom yog cov piv txwv ntawm kev ua cov polymers, whereas stimuli-responsive block copolymers yog cov piv txwv ntawm tsis ua polymers.
Daim duab hauv qab no nthuav tawm qhov sib txawv ntawm kev coj ua thiab tsis ua cov polymers hauv daim ntawv tabular.
Summary – Ua vs Tsis Ua Polymers
Kev ua cov khoom siv hluav taws xob lossis cov khoom siv hluav taws xob yog cov khoom siv polymer uas muaj peev xwm ua hluav taws xob los ntawm cov khoom siv polymer. Non-conductive polymer lossis non-conductive polymers yog cov ntaub ntawv polymer uas yog cov khoom siv hluav taws xob insulating. Yog li, qhov sib txawv tseem ceeb ntawm kev coj ua thiab tsis ua cov polymers yog qhov ua cov polymers tuaj yeem ua hluav taws xob, qhov tsis ua cov polymers tsis tuaj yeem ua hluav taws xob.
