w********h
发帖数: 12367 | 1 时常需要查一些资料解决一些小问题，
就把调查的结果在这里和大家共享吧。
Hydrogenation:
Here I describe some common methods to hydrogenate polyisoprene.
Generally the catalyst is Pd/CaCO3 (Strem Chemical Co.), Parr
reactor (shaker type hydrogenation apparatus #3910), 500 psi H2
(controllable) and 70oC (controllable) for 24 hr (controllable).
The condition parameters can be varied for different hydrogenation
fraction. Generally the concentration of PIP in cyclohexane is
10 g/L, and the ratio of the catalyst to polymer is 1:1.
(1) Hy |
|
