Question

polymer question

Answer 1

how could you predict the properties of certain polymers based on solubility, rigidity, and resistance to heating.


for example poly chloroflouroethene

Answer 2

like i know for teflon its H atoms are all replaced with F, therefore unreactive (highly) therefore high resistance to heat, but like the one above how do you tell?

Answer 3

@Hoslos

Answer 4

Fist of all, you can see tha the the compound is full of halogens attached to it, and Carbon-Halogen bond has high bond energy, hence it is unreactive. Speaking of unreactive, they cannot also react with oxygen to burn, hence they do not burn easily or are resistant to heating, as well as their solubility is low, because they can hardly react with water or anyother solvent.

Answer 5

"Carbon-Halogen bond has high bond energy, hence it is unreactive." why would high bond energy be more unreactive? or is that only for a carbon-halogen bond?

Answer 6

When a bond energy is high, it means it required more energy or heat energy to break the bond, so that it can react, by combining with the bond of the other reactant.

Answer 7

oh i see, however lets say you have a high bond energy but lets say a triple bond, it would be more reactive now right? because it distributed it to its individual bonds?

Answer 8

Not as muc. Because double and triple bond re way weaker than single bonds, in other words, they are more vulnerable to reactions.

Answer 9

so more reactive but not by much right?

Answer 10

It is much. For instane C-C has 350KJ, C=C has 610 and CtriplebondC has 850KJ.

Answer 11

oh i understand thank you

Answer 12

Right!