AQA 3.12 Polymers REVISION

[i_love_dua_lipa]

ur videos r the best, hated organic all thru yr 12 and start of yr 13. currently pulling an all nighter learning from ur vids for paper 2 mock tomorrow. they've helped me so much

[kaviyam]

Concerning the terylene part, i think that there might be a mistake because during the formation of the polyester, -OH is removed from the carboxylic acid while -H is removed from the alcohol

[haroonali]

Thanks for making these, the Yr 1 revision videos were amazing.

[Elias.]

15:20 I believe the repeat unit of Terylene should have another O beside the CH2 on the right hand side.

[Masowe.]

33:40 i recycle things at all cost. Even if it means a journey to a recycling centre often or repeating food bits from a foil after cooking or using reusables. I hope people do the same if not better as we need a better environment for our wonderful tomorrow
Thank you for the video, i finally understand these things

[jimliu]

I also have the same query as @Rishi Ballis Isn't the number of water molecules formed (2n-1) in a reaction forming polyamides or polyesters as the chain ends at some point. Another question is when a polyester is formed surely the water molecule that leaves consists of an oh from the acid and a h from the alcohol from attack, so shouldn't the repeating unit of the polyester have the o bond on the side of the alcohol and on the other side the bond from c, from the c double bond.

[lztpwlz]

Thank you so much you helped me improve soo much in chemistry!!!!

[rishiballis]

is it meant to be (2n-1)H2O when forming or hydrolysing the polyesters/amides?

[mrvlone]

Do we HAVE to know the monomers names forming the polyamide? Or just the polyamides structure

[shano]

Why is it called 1, 4-diaminobenzene not benzene-1, 4-diamine

[amidiqbal]

Does it matter if u remove 2 water molecules or 1. Someone please reply I’ve got an exam in 2 days. Thanks

[plodys]

Great video! I'm a little confused when it comes to H-bonds. I know H-bonds can form between H-N, H-O and H-F, but in this case we have a hydrogen bond being formed between a N-H and a C=O. Does the H-acceptor just have to have a lone pair?

[askeladd]

13:05 isn’t an ester link COC? Not OCO?