Qhov sib txawv tseem ceeb ntawm copolymer thiab terpolymer yog cov copolymers yog cov polymers uas muaj ntau tshaj ib hom kev rov ua dua tshiab, hos terpolymer yog hom copolymer uas muaj peb hom monomers.
A polymer yog ib yam tshuaj uas muaj cov molecules loj ua los ntawm ntau me thiab yooj yim molecules, hu ua monomers. Copolymer thiab terpolymer yog cov ntaub ntawv ntawm cov polymers uas muaj ntau hom monomers.
Copolymer yog dab tsi?
A copolymer yog cov khoom siv polymer uas muaj ntau dua ib hom kev rov ua dua tshiab. Yog li, ob lossis ntau hom monomers txuas nrog ib leeg hauv kev tsim cov copolymer. Cov txheej txheem ntawm polymerization uas tsim ib copolymer yog "copolymerization." Yog tias qhov copolymerization no suav nrog ob hom monomers, tom qab ntawd cov khoom siv polymer uas tshwm sim yog bipolymer. Ib yam li ntawd, yog tias nws muaj peb lub monomers, ces nws ua rau terpolymer, thiab yog tias muaj plaub monomers, ces nws ua rau quaterpolymer. Feem ntau cov txheej txheem loj hlob polymerization ua rau cov copolymer.
Muaj ntau hom copolymers raws li cov qauv ntawm cov khoom siv polymer. Linear copolymers suav nrog cov hauv qab no:
- Block copolymer - muaj ob lossis ntau dua homopolymer subunits txuas rau ib leeg ntawm covalent bonds.
- Alternating copolymer - muaj cov qauv hloov pauv tsis tu ncua ntawm ob lub monomers sib txawv hauv cov qauv kab.
- Lub sijhawm copolymers - muaj cov chav nyob hauv ib ntus rov ua dua.
- Gradient copolymer - cov monomer muaj pes tsawg leeg hloov maj mam raws cov saw.
Ib yam li ntawd, muaj cov qauv tsim ntawm cov copolymer ib yam nkaus. Piv txwv xws li txhuam thiab txhuam copolymer. Tsis tas li ntawd, muaj copolymer graft. Nws muaj nws cov saw tseem ceeb uas muaj tib hom monomer units, thiab nws cov ceg ua los ntawm cov monomer sib txawv.
Graft polymers yog segmented copolymer nrog ib tug linear qaum ntawm ib tug monomer thiab randomly faib ceg ntawm lwm monomer. Ntawm no, sab chains yog structurally txawv los ntawm lub ntsiab saw ntawm lub polymer. Txawm hais tias lawv muaj qhov sib txawv ntawm ib leeg, tus kheej grafted chains yuav yog homopolymer lossis copolymer.
Terpolymer yog dab tsi?
A terpolymer yog ib hom polymer uas yog ua los ntawm peb hom monomers sib txawv. Feem ntau, terpolymers muaj txiaj ntsig zoo hauv kev tsim cov khoom siv biodegradable ntxeem tau zoo-nco scaffolds thiab hauv kev tsim cov hlau thiab cable npog. Ntxiv mus, peb tuaj yeem hla-txuas cov terpolymers los ntawm lub teeb hluav taws xob txhawm rau txhawm rau txhim kho lub zog thaum nce qhov kub thiab txias. Ib hom terpolymer yog acrylonitrile-butadiene-styrene terpolymer.
Terpolymer yog qhov tseem ceeb heteropolymer vim tias muaj peb qhov sib txawv rov ua dua tshiab hauv cov qauv polymer. Hauv qhov sib piv, homopolymer tsuas muaj ib hom rov ua dua tshiab hauv tag nrho cov polymer molecule.
Qhov txawv ntawm Copolymer thiab Terpolymer yog dab tsi?
Copolymer yog ib hom polymers. Terpolymer yog ib hom copolymer. Qhov sib txawv tseem ceeb ntawm copolymer thiab terpolymer yog cov copolymers yog cov polymers uas muaj ntau dua ib hom kev rov ua dua tshiab thaum terpolymer yog hom copolymer uas muaj peb hom monomers sib txawv.
Cov lus hauv qab no qhia txog qhov sib txawv ntawm copolymer thiab terpolymer.
Summary – Copolymer vs Terpolymer
A copolymer yog cov khoom siv polymer uas muaj ntau dua ib hom kev rov ua dua tshiab. Lub terpolymer yog ib hom polymer uas yog tsim los ntawm peb hom monomers sib txawv. Qhov sib txawv tseem ceeb ntawm copolymer thiab terpolymer yog cov copolymers yog cov polymers uas muaj ntau tshaj ib hom kev rov ua dua tshiab, hos terpolymer yog hom copolymer uas muaj peb hom monomers.
