o***m
发帖数: 13 | 1 I want to identify a polymer(on the top left corner on the linked image), how
can I do that? And how can I make it with the one on the bottom right corner
of the image. The image is here:
Thanks! | o**r
发帖数: 11 | 2 vinylene carbonate
polymerize and hydrolyze
the substitution should be easy for you afterwards
【在 o***m 的大作中提到】
: I want to identify a polymer(on the top left corner on the linked image), how
: can I do that? And how can I make it with the one on the bottom right corner
: of the image. The image is here:
: Thanks!
| o***m
发帖数: 13 | 3 Thanks! But how can I identify it? Does NMR works? What kind of solvent can
dissovle this polymer? | o**r
发帖数: 11 | 4 sorry,看错了，还以为你问怎么做这个聚合物。
溶剂水，甲醇应该就行。羟基密度这么高.
左上的那个不知道溶解在什么里，也许anisole or DCM
确定结构不知道, 能做的全做吧,
分子量大的话，什么都确定不了
【在 o***m 的大作中提到】
: Thanks! But how can I identify it? Does NMR works? What kind of solvent can
: dissovle this polymer?
| a*****c
发帖数: 3525 | 5 IR，left：3100－3000 cm-1 C-H (aromatic); 1600-1400 cm-1 C=C (aromatic)
right:3200-3600 cm-1 O-H; 2960-2850 cm-1, C-H (alkyl)
UV-vis, left: observable about 200-400 nm region;
right: almost none
1NMR, left: solvent: CDCl3/CD2Cl2/etc. ~7-8ppm, protons of phenyl ring,
~2-4ppm, of protons of the main chain.
right: solvent: D2O/CD3COCD3/(CD3)2SO/etc. proton of OH, and protons of
the main chain are different.
MS, fragments are different
elemental analysis, C, H.
and more if necessary.
【在 o***m 的大作中提到】
: I want to identify a polymer(on the top left corner on the linked image), how
: can I do that? And how can I make it with the one on the bottom right corner
: of the image. The image is here:
: Thanks!
| o***m
发帖数: 13 | 6 Thank you guys for your input! |
|
