2 câu trả lời
+ PE: polietilen
$nC_2H_4\xrightarrow{{t^o, p, xt}} (\kern-6pt-CH_2-CH_2-\kern-6pt)_n$
+ PVC: poli(vinyl clorua):
$nCH_2=CHCl\xrightarrow{{t^o, p, xt}} (\kern-6pt-CH_2-CHCl-\kern-6pt)_n$
+ PMM: poli(metyl metacrylat):
$nCH_2=C(CH_3)COOCH_3\xrightarrow{{t^o, p, xt}} (\kern-6pt-CH_2-C(CH_3)(COOCH_3)-\kern-6pt)_n$
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