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Hydrogen Bonds in poylmers:

I just did a past paper question and it asked to compare the strengths of stanyl and nylon-6,6. I thought they both have hyrdogen bonds but the mark scheme only said stanyl has hydrogen bonds.

The question is 6.Ci from the polymers, proteins and steel paper

link below:

http://www.freeexampapers.com/#A%20Level/Chemistry/OCR%20Salters/2002%20Jun
Original post by thelion0
I just did a past paper question and it asked to compare the strengths of stanyl and nylon-6,6. I thought they both have hyrdogen bonds but the mark scheme only said stanyl has hydrogen bonds.

The question is 6.Ci from the polymers, proteins and steel paper

link below:

http://www.freeexampapers.com/#A%20Level/Chemistry/OCR%20Salters/2002%20Jun


nylon-6,6 and nylon-4,6 ?

I have no idea, but would like to know the reasons (if any)
They both have hydrogen bonds, the markscheme doesn't say that nylon-6,6 doesn't - just that 4,6 has more hydrogen bonds, since it has a shorter carbon chain per repeating unit. In other words you'll have more hydrogen bonds in a 2000 carbon chain in nylon-4,6 than nylon-6,6 :smile:

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