Ch3 ch2 ch2 ch3 zn. Ch-ch3-ch3-c-ch2-c-ch3-ch3-ch3. ch3 ch2 c ch2 ch2 ch3. ch2═ch─c≡n полимер. hc тройная связь c ch2 c ch3 ch3 ch3.

Ch3 ch2 ch2 ch3 zn. Ch-ch3-ch3-c-ch2-c-ch3-ch3-ch3. ch3 ch2 c ch2 ch2 ch3. ch2═ch─c≡n полимер. hc тройная связь c ch2 c ch3 ch3 ch3.
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