[agalev]

Hey,

I'm having a problem for some time finding out which of these materials are conjugated polymers and which aren't.

Can somebody please help me?
I know it has something to do with pi-bounds but I can't find an answer to which are the conjugated polymers





great thanks to anyone who could help me out!

[Arkcon]

Yes, conjugated pi bods does have "something" to do with pi bods.  Can you recheck you class notes or textbook what exactly what?  This is a pretty simple definition question.  There's not much of a hint or help we can give you.

[agalev]

Yeah I checked the definition, but how do I know in the examples which of these polymers have pi bonds?

[Arkcon]

Yeah I checked the definition, but how do I know in the examples which of these polymers have pi bonds?

From the definition:  http://en.wikipedia.org/wiki/Pi_bond#Multiple_bonds

[samyukth]

Organic PV right? Even im finding answers for it. There is no enough information given to attend the question.

[kriggy]

Organic PV right? Even im finding answers for it. There is no enough information given to attend the question.

Wait what? Out of all those compounds, there are only two that are polymers...

Agalev:
single bond = sigma bond
double bond = sigma bond + pi bond
tripple bond = sigma bond + two pi bonds

there is a question: what does it mean than bonds are conjugated? can you give a example of compound with cojugated bonds?

[masaa]

single bond followed by double bond followed by single bond...etc.
the lower band gap the higher conjugated polymer.