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Polymerisation

Can anyone help in these two questions, to see if they are right or not, the first one I have to show the repeat unit of the monomer given and in the second one I have to show the monomer that produced this polymer?

ImageUploadedByStudent Room1413032880.277572.jpg


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Anyone???


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They're both right I think. (I'm doing AS Chemistry
Original post by Isla-H
They're both right I think. (I'm doing AS Chemistry


It seems right but not too sure?


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Original post by Jimmy20002012
It seems right but not too sure?


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Well with the first one, for example, you have removed the C double bond, added bracket sand an n to show that there are many of these polymers in a long chain, and you've shown that the basic formula doesn't change. To be honest, I'm not sure about the second because at my school we were taught a different way of displaying it
Original post by Isla-H
Well with the first one, for example, you have removed the C double bond, added bracket sand an n to show that there are many of these polymers in a long chain, and you've shown that the basic formula doesn't change. To be honest, I'm not sure about the second because at my school we were taught a different way of displaying it


So would you say the first one is defiantly right?


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Original post by Jimmy20002012
So would you say the first one is defiantly right?


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Yeah, I can't think of anything else you'd need to do with the first :smile:
Original post by Jimmy20002012
Can anyone help in these two questions, to see if they are right or not, the first one I have to show the repeat unit of the monomer given and in the second one I have to show the monomer that produced this polymer?

ImageUploadedByStudent Room1413032880.277572.jpg


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Neither of them are correct ...

To go from cyclopropene to the 'intermediate' molecule is not possible in one step.
(edited 9 years ago)
Yugioh!


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Reply 9
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GDN
1
the first one is ok (although I don't know why the cyclopropene is there) but the 2nd isn't - are you sure you have the polymer right?
(edited 9 years ago)
Original post by charco
Neither of them are correct ...

To go from cyclopropene to the 'intermediate' molecule is not possible in one step.


Okay get the first nog,but what is wrong with the second?


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The first one is wrong.

How can you go from cyclopropane to but-2-ene? Where does the extra carbon come from?

The second one is also wrong.

Where do the extra two carbons come from? The original molecule has the benzene rings attached directly to each other. Somehow you've shoved an ethyne in between!
(edited 9 years ago)
Original post by Pigster
The first one is wrong.

How can you go from cyclopropane to but-2-ene? Where does the extra carbon come from?

The second one is also wrong.

Where do the extra two carbons come from? The original molecule has the benzene rings attached directly to each other. Somehow you've shoved an ethyne in between!


Yeah I know the first one is wrong now, but can't seem to visualise the second one, so it is a benzene ring??


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Is the polymer based on cyclohexane or benzene? If the later, you forgot the circles.

Could it be cyclobutane conjoined with two cyclohexanes?
Reply 14
Avatar for GDN
GDN
1
your structure showing 2 cyclohexane rings joined as a polymer can not be formed from an alkene
Aha, a little sleep and I came up with cyclohexene as the monomer.

Go me.
Reply 16
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DJC1996
9
Original post by charco
Neither of them are correct ...

To go from cyclopropene to the 'intermediate' molecule is not possible in one step.


And the award for most helpful and lovely member of TSR goes to........................................


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Original post by DJC1996
And the award for most helpful and lovely member of TSR goes to........................................


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and a very good morning to you too .....
Who does the award go to?

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