Polymers: Crash Course Chemistry #45

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Did you know that Polymers save the lives of Elephants? Well, now you do! The world of Polymers is so amazingly integrated into our daily lives that we sometimes forget how amazing they are. Here, Hank talks about how they were developed, and the different types of Polymers that are common in the world today, including some that may surprise you.
Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: apple.co/3d4eyZo
Download it here for Android Devices: bit.ly/2SrDulJ
--
Table of Contents
Commercial Polymers & Saved Elephants 0:00
Ethene AKA Ethylene 2:29
Addition Reactions 3:08
Ethene Based Polymers 4:44
Addition Polymerization & Condensation Reactions 6:32
Proteins & Other Natural Polymers 8:33
--
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Опубликовано:

6 авг 2024

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Комментарии : 681

@crashcourse 4 года назад

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App! Download it here for Apple Devices: apple.co/3d4eyZo Download it here for Android Devices: bit.ly/2SrDulJ

@sudeepjoseph69 4 года назад

@Rasty1989 10 лет назад

I'm on youtube instead of studying for my exam on polymers and what comes up? POLYMERS I can't escape...

@originaLkomatoast 10 лет назад

You're eternally doomed.

@celtriot 8 лет назад

Can you crash course the rest of university now pls

@celtriot 8 лет назад

+B Deep with references

@my-crazy-fantastic-fanatic 6 лет назад

AMEN

@anthonymorford8804 5 лет назад

All the universities

@Dangerousthings 8 лет назад

Correction - at 4:12 you state "loses some of its opacity" when you mean to say "loses some of its transparency" (gaining opacity).

@kyalucero7977 8 лет назад

Thanks

@isidoreaerys8745 5 лет назад

Thankyou

@RequiemFear 10 лет назад

Half a semester of my 12th grade chemistry in 10 minutes. Wow.

@unvergebeneid 10 лет назад

Proportionally, you must have spent three weeks alone on Darwin's balls.

@kittyletitrain7489 10 лет назад

I remember wen i was a student i got a very low grades in chemistry huhuhu...

@bulipap 10 лет назад

This is everything that's wrong with our current school system.

@Tiki_H 7 лет назад

@bulipap it's not that easy to teach

@logitasj6280 7 лет назад

ikr! well, i'm a 10th grader, but still!

@JuanPhys 9 лет назад

Incredible well done job. This 10 minutes video was still better than 6 hours of classes with my teacher. :)

@kuntakintedd5328 5 лет назад

No it wasnt. this video is not for teaching purpose. and if it is this video doesnt teach its just information after watching this in the next 20 minutes u wont remember anything

@lovolai4019 9 лет назад

Hank's shirt. An owl wearing a bowtie and a fez. Doctor Hoo. I'll leave now.

@RagulViknesh 8 лет назад

+lovolai Wow, man. Just.. Wow! :P XD

@michelleb8481 6 лет назад

lovolai

@vikingphoenix8578 5 лет назад

random, but good.

@LeenaSregneva 8 лет назад

Got a Chem test tomorrow about this stuff. Wish me luck!

@mlpgaming692 8 лет назад

@twizzzzzzyy 8 лет назад

Same

@BlahBlah-rc7cb 8 лет назад

Saaaame

@twizzzzzzyy 8 лет назад

Good luck to Everybody

@BlahBlah-rc7cb 8 лет назад

Wooo I think I nailed it! Thanks Hank!

@pauldamon4028 9 лет назад

Thanks for making all of these Crash Course Videos. I learn WAY more from these than actually going to class! It is very clever to make these videos short enough to pacify the short attention span of most people.

@juancpgo 6 лет назад

I just fell in love with chemistry watching this. Here we go again, one more subject that will consume countless hours of my life :D

@cat5220 7 лет назад

I understood nothing... I just enjoy listening to Hank talking :D

@simplemoneydrop476 4 года назад

same

@TheRosa63 9 лет назад

I have to say I have been watching alot of your videos and find you very informative thank you for sharing your knowledge with others. it is educational and sometimes even fun.

@danheidel 10 лет назад

4:13 - Psst Hank, I think you meant to say that it loses some of its transparency, not opacity...

@plzno3788 8 лет назад

I've got some suggestions for new crash course series: - Crash Course Physics - Crash Course Calculous - Crash Course Computer Science

@AayushChaurasia 8 лет назад

+Joe Irvine Certainly would love to have a Crash Course Physics

@museachang1309 8 лет назад

+Aayush Chaurasia I believe that Crash Course Physics is one of their Patreon goals

@muaz4530 8 лет назад

+Joe Irvine I would love physics

@arousedsquirrel2429 8 лет назад

+Joe Irvine Physics needs to happen.

@its_maalik 8 лет назад

+Joe Irvine Crash course physics and programming would be damn amazing

@chefkendranguyen 10 лет назад

Very interesting. I learned something, then again I always do watching crash course.

@orleibovich8433 10 лет назад

6:49 gotta love that barret (ff VII) refrence!

@Flobadobadob 8 лет назад

"The balls that were so valuable" I honestly don't know why that got to me :D

@wbgw6476 7 лет назад

I love Love LOVE how you talk fast to get it all in. Makes it energetic & fun :) And of course, it's a video, so i can just re-watch anything I need to hear twice. Thank you so much for your time. You're perfect!!!

@gita509 7 лет назад

Last month I had a project on this and I did so much research! Now, one month later I find everything I need in one 10 minute video.

@dragonheart1465 4 года назад

I hate studying chem. So I watch your videos before I start studying a chapter to keep me interested. Thanks man😁

@surrency1992 10 лет назад

I would like to thank Crash Course for the helping me attain the ability to pass my chemistry class this coming semester. I never knew it would be this hard to take chemistry as a hybrid course. Luckily the labs are still in person!

@logitasj6280 7 лет назад

i love Crash Course! I was sheerly petrified in my chemistry class, and when i checked out Crash Course, well, i just became as shining as the billiard balls! Thank you, team Crash Course! Love you!

@user-iw1dp4oz3h 6 лет назад

Your channel is AMAZING. Everytime I have an exam, I just come to this channel! Extraoridinary, honestly. Wonderful work, keep it up!💕

@Garv-gk8bm 2 года назад

love how fast and explanatory you are instead of spending years explaining one topic

@lawrencium4101 6 лет назад

I've had a shitty Chemistry teacher for this past year and I'm to sit my GCSE's in June! Binging your videos and they're probably most halpful on RU-vid! (you along with FreeScienceLessons have probably saved my grade) thak you so much Hank & the team!

@matchalovers999 5 лет назад

i love this video! My lecturer always gives me a boring lesson, but with this just 10 minutes enough to give me explanation! i want to know more about polymer after watching this :)

@keithmorrison9452 10 лет назад

I just wanted to thank you for this video. Work with PTFE in offshore supply for oil and gas and never knew the science behind it. Everything makes so much more sense now. Thank you once again.

@GeorgeTheo212 9 лет назад

Is there every going to be a Crash Course Physics?

@shaniaali1497 7 лет назад

there is

@danvil6234 6 лет назад

He commented that 2 years ago and your only just answering?........

@yashkunwar554 6 лет назад

and he commented 5 months ago :D

@danvil6234 6 лет назад

Yash Arron and you commented on my 1 month old comment

@xiaodanny5288 6 лет назад

T Grayson lol

@abhaysharma9317 6 лет назад

I often think how much the polymers have impacted on our lives this has made most of the gadgets efficiently possible and I love the fast pacing knowledge that the crash course provides that is just all what I wabt.

@eliskakotounova7590 8 лет назад

Thank you for this amazing video. Studying for finals was very boring until I found your channel. I think I'm gonna watch other courses as well. This makes it more fun than just simple book reading and stuf like that. I like the way you explain things.

@arsenewenger9351 10 лет назад

Oh, I get what you're on about. Polymerisation was my favourite Yu-Gi-Oh card. Love this channel!

@GalanDun 10 лет назад

IT'S TIME TO D D D DUEL!

@xboxboy93941 9 лет назад

In Organic Chemistry Lab, we did a similar experiment where we made nylon, but it was made with sebacoyl chloride (10-carbon chain with carboxyl groups on both ends) and 1,6-hexadiamine. Different kind of nylon than the video, but the technique with the immiscible solvents was the same.

@Erik-yw9kj 9 лет назад

"Oh! Mr. DNA! Where'd you come from?" - "From your blood!" -- Thank you, Jurassic Park reference. =)

@livintolearn7053 6 лет назад

Finally! At least one person noticed...

@AriesVidz 9 лет назад

thank you...keep making these man. helped me out a lot

@Nexus2Eden 10 лет назад

Amazing Hank! Seriously - well done. And the staff as well. ;)

@rishabhbhonsle7831 7 лет назад

Your videos are amazing Hank! Make my life much simpler... Thanks!!

@tuseroni 10 лет назад

the barret free radical made me lol....

@MeganWithCamera 10 лет назад

Thanks for the Chemistry revision help Hank, now I understand!

@amanmartolia2359 9 лет назад

Thank you... your videos alwys help me alot for exams

@anmrivera6736 6 лет назад

Your brother helped me in Humanities Pre-History and now you're helping me with my AnP Class.... Thank You! 😊👌👍

@EliotPearson 10 лет назад

Very informative. It was way better than any course I took in school.

@riri109360 10 лет назад

I love these videos! They are so informative, and the animations make them so much fun!! I can't thank you enough :)

@Eizaz7 10 лет назад

These videos are SO useful for me on revising for my GCSEs. Thank you so much!

@10bokaj 8 лет назад

LOVE THIS!

@gregorygolando 7 лет назад

Wow! super informative. Subscribing after watching this. Great educational video, super condensed too, no waste of time, great!

@lorddiaboboss 7 лет назад

The children and I love Crash Crash. Thank - you for creating great ways to engage in what was once painful !!

@jasvinjames5773 8 лет назад

Awesome video, subscribed right away, keep up d good work

@kevluv93 10 лет назад

These are amazingly good, learn something new every day!

@sanchitgngplays 7 лет назад

I wanted this only .....fast quick and everything.....thanks .

@emilyp6097 7 лет назад

Luv your videos!

@sofiagarrett4696 7 лет назад

extremely helpful video for my plastics and packaging course

@rogerdotlee 10 лет назад

Thanks again, Hank. Another episode that will likely take me a few watchings to completely grok. Well done.

@rogerdotlee 10 лет назад

Amino Acids. "Did you see that coming?" No, Hank, I didn't. Even the third time I watched it.

@neil.vezeau 10 лет назад

thank you so much for doing these!

@robertkarlpekarek1806 10 лет назад

I have a test on this stuff tomorrow. Your video came just in time!

@djalitanaful 7 лет назад

hi, every time I watch your videos and I really find them useful. today finally taking my time to give you feedback. thank you.

@saxon215 8 лет назад

Cool thanks man I'm going to watch more of these

@RedShirtSmith 10 лет назад

Another cool thing about PVC in particular, you can add a certain thing called a plasticizer to make these chain longer and more ordered to make the fabric sort of PVC.

@ImranZakhaev9 8 лет назад

I love crash course so much I literally can't even

@clairewells9995 8 лет назад

Oh but same

@carleescorner7347 7 лет назад

this is my absolute favorite channel!!!

@akankshasharma3937 10 лет назад

great video!! helps a lot to understand polymerisation:)

@ayusheesharma3576 8 лет назад

These video r super cool thanks :)

@dakilangraikage9988 8 лет назад

THANKS FOR THE INFO!! IT HELPS ME ALOT!! :D

@patrickcarter9867 10 лет назад

Great presentation.

@sanjayjindal4652 6 лет назад

Very nicely presented.

@autumnelizabeth533 4 года назад

Wow this is a really clear explanation

@zoranasimovic278 4 года назад

I´m 30yrs old and recently I started new position in a new company..chemical industry..I literally have to learn chemistry from the scratch..thank you for this :D It helped a lot :)

@lawrencium4101 6 лет назад

You guys are literally one of my favourite channel on youtube, I watch Scishow out of curiosity! My Science teacher put a Scishow video on and I gasped (loads of people looked at me and I went super red lol)

@mohammedsalah8887 4 года назад

so we spent a week learning this and i didn't understand that well and this sums everything in 10mins wow great video

@justacookie8844 Год назад

i love life man, the world is full of fun facts and interesting people. thank you for contributing to the beauty that is our world :)

@Levipaulsen 7 лет назад

Would love a Crash Course Organic Chemistry,... This stuff is great Guys. Keep it coming.

@paulzackowski2129 10 лет назад

I have to point out that HDPE and LDPE don't necessarily have different molecular weights, LDPE just has more side chains which lowers the amount of crystallization lowering the density (low density)

@surbhikohli8559 10 лет назад

superb video ,it was really helpful for me

@aldo3749 10 лет назад

Very informative.. Thank you!

@worldmayor2008 10 лет назад

This guy is great, cheers for the info.

@MrHulshizer 8 лет назад

Thank you for the FF VII and Jurassic Park cameos late in the video.. Love it.

@sonivishwakarma3248 8 лет назад

just awsmm way of teaching ; coz no one is gonna miss it out , u have to concentrate!!!!!

@zakariaalmoussaoui4864 5 лет назад

Thanks for making all of these Crash Course Videos from morocco .

@Espinozawolf 10 лет назад

Can't wait for next week!

@anthonyred3991 10 лет назад

The episodes written by Hank himself are the best- probably also, because he can present his own material more authentically.

@petraarkian7720 10 лет назад

nice shirt hank :) bowties and fezzes are very cool!

@dikshajadhav2000 7 лет назад

thanks helped a lot

@jeffkosmoski9997 8 лет назад

You rock! Great video!

@thronesdomination4013 6 лет назад

This is amazing

@NaCN 5 лет назад

Your videos are incredible! Can you do a video on substitution, addition and elimination reactions?

@erictremblay7102 9 лет назад

Thank you for this video. It is really great!

@heatherfreeman5274 6 лет назад

Holy heck I am in a polymer engineering class thank you for summing up the first 4 lectures youre doing great crash course

@frankdoherty8999 5 лет назад

Awesome, making AP chem a breeze!! Would love to see a video detailing molecular engines and mini motors - nanoscience is the future !

@YeLLowCarDxGirL 10 лет назад

There needs to be a video dedicated to explaining all the different isomers.

@darcey7288 7 лет назад

Chemistry GCSE begins this week. I have such a strong feeling this is going to come up as a 6 mark question! Thank you for this!

@Dylan-qk8ss 7 лет назад

Great video.

@ml3981 4 года назад

Thx for the info

@ryanjamesfuentesconiendo4999 4 года назад

amazing... thanks crashcourse!

@vonpredator 10 лет назад

Extremely informative! Another example of the difference between Thermoset and Thermoplastics is: Thermoplastics are like butter, you can warm them up and can recycle them easily with the addition of heat. Thermosets are like a egg, once you boil the egg it's hard and you can't change it shape with more heat. Keep up the great work!