Nws yog cov siab-cov molecular organic compound, uas tuaj yeem muaj nyob hauv ntau hom xws li cov kua roj colloidal tov, thiab lwm yam. Vim tias qhov sib txawv ntawm monomer muaj pes tsawg leeg, nws ua rau cov yas sib txawv thiab muaj ntau yam khoom. Cov txheej txheem sib txawv tuaj yeem siv nrog cov khoom sib txawv. Cov plua plav hauv cov tog raj yas tshuaj yuav muab faib ua cov thermosetting thiab thermoplastic. Tus qub tsis tuaj yeem rov kho dua thiab siv tau, thiab tom kawg tuaj yeem tsim dua.
Yeej muaj ob hom qauv ntawm cov yas polymer: qhov ua ntej yog cov qauv, thiab cov polymer sib txuas nrog cov qauv no yog hu ua linear polymer compound; qhov thib ob yog lub cev qauv, nrog cov khoom sib txuas sib xyaw nrog cov qauv no hu ua lub cev hom polymer compound. Qee cov polymers muaj cov xov saw, hu ua branched saw polymers, uas yog koom nrog tus qauv linear. Txawm hais tias qee cov polymers muaj qhov sib txuas ntawm cov molecules, lawv tsis tshua sib txuas. Lawv hu ua kev teeb tsa hauv network thiab koom nrog cov qauv hauv lub cev.
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