Radical Polymerization

Describes the radical mechanism for making polymers from alkenes. Polymers include polyethylene, polypropylene, polyvinyl chloride (PVC) and polystyrene.

[@ayaelguennouni1240]

I understood more in five minutes than in five lectures at school. Thank you !!

[@jpmccormick3491]

Thanks for the kind words. So glad the video was helpful!

[@hyewonhan7012]

goodness it's been 3 years since i studied org chem and now i need to review it all over again for polymer engineering subject TT

[@robbyadams306]

Thank you for this! I'm trying to gain a complete understanding of cast iron seasoning polymers and one day do a research paper on the subject. I'm still a student for now! Could you please explain what you think is being created when doing a basic "seasoning" heating grapeseed oil (smoke point 420°f) to 500°f for 1 hour and allowed to cool in oven for 2 hours after shutting off? Would this be some sort of bioplastic formation? Also there is a theory that cooking onions helps the polymer formation (more than likely a sulfur reaction between fat, iron, and sulfur.) I would love your thoughts behind this.

[@boogymcguiness9649]

So what actually makes plastic?

[@akshaym7772]

Sir can you please say why the pi bond break while reacting with initiator

[@jpmccormick3491]

Great question! Two factors are key: (1) When two molecules collide, their kinetic movement provides energy that in part is translated into breaking bonds. (2) The pi bond component of a double bond is substantially weaker than a typical sigma bond involving a carbon atom -- so a weaker bond is being replaced by a stronger one. I admire the insightful level of your thinking! Best wishes for success!

[@davidzamora3244]

youre the man!

[@jpmccormick3491]

Thank you! You can get notes for this and all the other lectures at quickorgo.com

[@alondrarivera5530]

Thank you sir!

[@jpmccormick3491]

You're welcome! Best wishes for success!

[@mauriciotellez2611]

thank you...

[@jpmccormick3491]

You're welcome! Thanks for the comment. Best wishes for success!

[@jpmccormick3491]

You're welcome! I'm glad it was helpful. Thank you for the comment!

[@jasonkil2715]

thanks helped alot

[@jpmccormick3491]

+Heon Soo Kil Very pleased to hear that! Thanks for the feedback.