p*****x
发帖数: 68 | 1 thanks.
and i tried to increase the ratio of CH3CN and it doesn't seem to make much
difference
i think by adding more non-solvent will facilitate the precipitation, is it
true?
the
way
little | a***u
发帖数: 9 | 2 I am not sure if you have tried removing DMF or not. As I said before,
increasing the concentration of the polymer solution may be more helpful than
increasing the amount of CH3CN.If you start with a concentrated polymer
solution and add a lot of CH3CN into the solution but there is no
precipitation or the solution is only cloudy, that means CH3CN is not a poor
solvent for the polymer and it is better to follow the other person's
suggestion to try some other poor solvents.
As to your question, i
【在 p*****x 的大作中提到】
: thanks.
: and i tried to increase the ratio of CH3CN and it doesn't seem to make much
: difference
: i think by adding more non-solvent will facilitate the precipitation, is it
: true?
:
: the
: way
: little
| c*******n
发帖数: 1648 | 3 AGLEE!
than
not
be
you
of
strong
much
it
【在 a***u 的大作中提到】
: I am not sure if you have tried removing DMF or not. As I said before,
: increasing the concentration of the polymer solution may be more helpful than
: increasing the amount of CH3CN.If you start with a concentrated polymer
: solution and add a lot of CH3CN into the solution but there is no
: precipitation or the solution is only cloudy, that means CH3CN is not a poor
: solvent for the polymer and it is better to follow the other person's
: suggestion to try some other poor solvents.
: As to your question, i
|
|
