丙烯烴=丙烯=聚丙烯????

There is no such thing called 丙烯烴,
as 烴 is a series of similar compounds (homologous series).
We can have 烯烴, and this series include ethene, propene (丙烯烴), butene, and so on.

丙烯烴 is propene as mentioned above.

Poly-propene (聚丙烯) is a number of propene (丙烯) polymerized together.
Therefore, propene (丙烯) is different from Poly-propene (聚丙烯).

丙烯烴不等於丙烯但丙烯等於 。

聚丙烯只是多個丙烯組成

2007-10-13 15:06:47 補充：
sor 丙烯烴不等於丙烯但丙烯等於聚丙烯

丙烯烴not=丙烯not=聚丙烯