I'm doing a physics degree, however I've come across

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Ester

The carboxylic from the ether should show in nice peak around 1700 1600 wavenumber unit

Imite carbonyl my bad auto correct got me fuck up

>>>/hm/

>>7695647
ester at 1745

>>7695647
PMMA will show carbonyl stretches at around 1700 cm^-1, while PS won't. Can you tell us any more about what you're doing? If it's anything involving quantitative analysis, or more in-depth than "is this pure polymer PMMA, PS, PE...", I'd start thinking about using NMR.

>>7695647
polymethylmethacrylate you fuck
where did you expect the second M to come from?

>fourier transmission

>p.s. i am a fembot tranny :)

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>>7695770
*carbonyl

OP you can probably find reference spectra online, the <1400 region is hard to interpret but is known as the "fingerprint region" for a reason.

>>7696355
lol this

IR is your best bet but if you have a solvent like acetone it might interfere. There's still tons of other stuff to think about, such as rheology. depends what you're doing it for.
Sorry that's probably too much information but I'm drunk and did research at a paint company til I could find a better job

>>7695647
for PS, you should have a stretch around 1600-1500cm^-1 for that aromatic phenyl. Also why the fuck should we care that you are a fembot or a tranny? How is that important?