[Timestamps] 1:46 - Addition Polymers 6:31 - Condensation Polymers 11:56 - Terylene (e.g. of a polyester) 16:00 - Nylon-6,6 (e.g. of a polyamide) 19:07 - Kevlar (e.g. of a polyamide) 22:04 - Disposal of polymers
genuinely owe you my life sir, thanks so much for all your help! i have my paper 2 tmrw, if i get into either of my uni choices it will be all down to you and your videos (even if i'll be studying modern languages when i get there XD) best of luck to everyone sitting the june 2023 exams! xxx
YES! This is perfect timing, polymers is the last thing I had to go over. Thank you for all the vidoes you've made, they helped a lot with Unit 1 & 2, and are certainly helping with Unit 4, looking forward to Unit 5 vids! :)
I'm a bit confused as to what happened to the OH and H in terylene from the middle of the two molecules. I understand what happened at the end but how did you link them with just the O and there wasn't 2 molecules of water
Very helpful video; thanks! :) Just one quick question - according to DuPont's own literature, Kevlar is manufactured from 1,4-diaminobenzene and benzene-1,4-dicarbonyl dichloride (C6H4(COCl)2), rather than benzene-1,4-dicarboxylic acid. I know this might be a fairly insignificant detail to be worrying about, but would the former still get the marks in an exam question?
+Eddard Stark That is true. I work more to textbooks and the content that the specification covers (which often isn't factually correct). I think that an exam would give you an idea of what to write as an answer e.g. when using dicarboxylic acids and dioyl chlorides, the end result is often the exact same when it comes to the polymer formed. Provided that what you write isn't factually incorrect, you won't have a problem. You just need to watch for application and little tricks that they might have stuck in the question which give you a hint as to which molecule to draw.
+Amazing Amirah It's just the way that it is. I believe that using the second example, you wouldn't be wrong in real life, but for the exam, it must be the former!
+Pierce Doherty This is one of those annoying ones where AQA seem to like the version I give (hence me naming it as such), but in reality, the accepted IUPAC name seems to actually be hexane-1,6-diamine.
No one will read this bit at 11.18 the water is formed from OH from carboxylic acid and H from alcohol . He did it incorrectly and he said its OH alcohols group plus H from carboxylic acid. This resulted in him drawing the polyester incorrectly too. When he says it didn't matter what side o is on thats the way taught in GCSE and in A level it matters
[Timestamps]
1:46 - Addition Polymers
6:31 - Condensation Polymers
11:56 - Terylene (e.g. of a polyester)
16:00 - Nylon-6,6 (e.g. of a polyamide)
19:07 - Kevlar (e.g. of a polyamide)
22:04 - Disposal of polymers
Thanks!
Was looking for ur time stamps haha thank you
I learnt more in 2 days watching his videos than I did my entire second AS semester. A true legend.
semester lol are you american
@@louisasmith6744 hehe nope. Why, don't you guys call them that? Or are they "terms"?
@@DhrumitMehta yeah haha
In my second year of uni and i still use these videos to jog my memory haha was a massive help during a levels, cheers..
we love u rintoul, we do!
we love u rintoul we do
we love u rintoul, we do
Ooooohhhhh, rintoul we love youuuu
lmao
I will make sure you go to heaven for this. Thanks a lot mate.
Matthew Sherman Are you God?
K, ur not going there anymore, changed my mind
😂
@@MilitaryConnect 😂😂😂
@@MilitaryConnect LMAOOOOOO
Wish the Internet was this useful when I did my a levels 20 years ago.
genuinely owe you my life sir, thanks so much for all your help! i have my paper 2 tmrw, if i get into either of my uni choices it will be all down to you and your videos (even if i'll be studying modern languages when i get there XD) best of luck to everyone sitting the june 2023 exams! xxx
YES! This is perfect timing, polymers is the last thing I had to go over.
Thank you for all the vidoes you've made, they helped a lot with Unit 1 & 2, and are certainly helping with Unit 4, looking forward to Unit 5 vids! :)
Thanks for watching!
Your videos are Fantastic! Thank you so much!
P.S. Can you do a video on Synthetic Routes PLEASE! It really is a challenging topic Thanks!
I'm a bit confused as to what happened to the OH and H in terylene from the middle of the two molecules. I understand what happened at the end but how did you link them with just the O and there wasn't 2 molecules of water
have you got any on the amino acids and DNA topic by any chance
At 15:18, shouldn't there be 2H20's to balance?
at 12:46 why is it not 1,4 dioic acid but 1,4 dicarboxylic ? what is the difference
Your videos are very helpful .Thanks alot for uploading them. Can you do an video about A2 unit 4 mass spectroscopy plzzzzz?
+Fiano Meng I certainly can. Watch this space!
Will you do amino acids? 😎 very helpful video thanks sir 👊🏿
+Ryan Bower I shall.
+E Rintoul and aromatic chemistry?
do you think it will be done before the exam on tuesday??
Maybe one day
2 years later....and I'm still waiting. Sad times.☹
Very helpful video; thanks! :)
Just one quick question - according to DuPont's own literature, Kevlar is manufactured from 1,4-diaminobenzene and benzene-1,4-dicarbonyl dichloride (C6H4(COCl)2), rather than benzene-1,4-dicarboxylic acid. I know this might be a fairly insignificant detail to be worrying about, but would the former still get the marks in an exam question?
+Eddard Stark That is true. I work more to textbooks and the content that the specification covers (which often isn't factually correct). I think that an exam would give you an idea of what to write as an answer e.g. when using dicarboxylic acids and dioyl chlorides, the end result is often the exact same when it comes to the polymer formed. Provided that what you write isn't factually incorrect, you won't have a problem. You just need to watch for application and little tricks that they might have stuck in the question which give you a hint as to which molecule to draw.
Right, that makes sense. Thanks for the advice.
Quick question- why benzene,1,4-dicarboxylic acid instead of benzene,1,4,dioic acid ? -or is that just the way it is
+Amazing Amirah It's just the way that it is. I believe that using the second example, you wouldn't be wrong in real life, but for the exam, it must be the former!
Thanks, mate. I needed this for my finals.
Thanks for the very helpful video as always! Could you please please do a video about Acyl Chlorides?? :)
+Sam Nichol Ooooh I reckon I can.
When drawing a repeating unit, can you draw it full as opposed to writing (ch2)4 in the middle?
Haider Farouq Of course!
just wonderimg was the naming right at 17:32, you called it 1,6-diamino hexane but is it not hexane-1,6-diamine?
+Pierce Doherty This is one of those annoying ones where AQA seem to like the version I give (hence me naming it as such), but in reality, the accepted IUPAC name seems to actually be hexane-1,6-diamine.
You Are such A Legend !!!!!!!
Just Wandering, Under Nylon66, Did you not have to specify the position of the the Dioic Acids (i.e. 1,6)
AS Polymers??
some of it's helpful such as aditional polymers
Thanks a lot , great videos, are you doing anymore unit 5 videos?
Pacman18996 Yeah, going to have a look in the coming week!
Thannnks! I'm doing edexcel and a lot of your videos are helpful.... the specs may be different but the chemistry is obviously still the same shah! xx
You're absolutely correct! Just make sure that you're aware of any different terminology or little quirks!
At 15:18, shouldn't there be 2H20's
Thanks! Could you do the A2 polymerisation specification?
which monomers can form addition polymers? examples please
hello, have you got an old spec unit 4 aqa vid on equilibria? :)
+Rhiannon Maxey Nope. It is coming today though...
Is there a video on esters and the uses for them A level spec?
Unit 5 vids would be awesome, particularly transition metals
Pacman18996 Absolutely - this coming week!
Very helpful video. Thanks. :)
+Diana Yassine No worries, Diana!
Excellent tutorial!!
Amino acids? Synthesis?
Hi, can you please do a video on acyl chlorides and benzene reactions
STILL so so so helpful WOW amazing stuff
Is Terylene A2?
Do you have any vids on AS polymers?
+Ijaz Sultan Not yet.
+E Rintoul oh ok. Thanks all the same
Thank you so much! Your videos are soooo helpful. God bless!
can I use this to revise for as addition polymers?
yeah
It was really helpful 👍😍
Can 1,6-diaminohexane also be called hexane-1,6-diamine
sol aly It certainly can - I'm just not sure if AQA would accept it...
but how come they would accept benzene-1,4-diamine?
sol aly Things are named differently when benzene is involved. Benzene carboxylic acid is an example.
So so so so helpful! Thank you so much! God bless
Hi there, brilliant video. Can you please make a video on amino acids?! :D
Will you do a vid for ph???
+Iddy Brah Yeah, it's one that I will be doing in the future!
+E Rintoul thank you! Can I ask where did your name originate from?
+Iddy Brah You mean my surname? If so, I think Scotland...
This is too good thankyou!!!
No one will read this bit at 11.18 the water is formed from OH from carboxylic acid and H from alcohol . He did it incorrectly and he said its OH alcohols group plus H from carboxylic acid. This resulted in him drawing the polyester incorrectly too. When he says it didn't matter what side o is on thats the way taught in GCSE and in A level it matters
You're right. It's a common error to remove OH from alcohol and H from carboxylic acids. It does matter as it affects the structure of the polymer.
Can you sit my exam for me? Thanks
I'm sure you can get Ms Bilkhu to do it!!
All hail Rintoul! Long live the king
Please pleaseeee can you do more a2 videos pleaseeeeeeee you helped so much at as level!!
Jess245 I definitely will be, yeah! Thinking the next might be Entropy...
22：12 disposible polymers mark
Nice vid
+Aled Horler Cheers, Aled.
This as or A2
?
Thanks again!
would not learn anything with covid shutdown if it wasn't for eliot lmao
Thanks
Test 2morrow, I am dead.
who has chem tomorrow? a levels
10:28
Unit 5 please
I'll try. Going to try and get Thermodynamics done at some point.