| 摘要 |
A substrate to be used for chromatography carrying a polymeric silicone of formula <CHEM> wherein R<1> is <CHEM> wherein X is (a) -(CH2)n-, wherein n is 0 to 20, <CHEM> the S-substituents S1, S2, S3, S4 and S5 are independently hydrogen, alkyl with 1 to 4 carbon atoms, methoxy, ethoxy, or cyano or, when X is a spacer group, phenoxy or biphenyl, provided that (A) at least one of the S-substituents is other than hydrogen, and (B) when one of S1 to S5 is a methyl or methoxy group, than at least two of S1 to S5 are other than hydrogen; R<2> is chlorine, fluorine, bromine, alkoxy with not more than 6 carbon atoms, >NH, -NH2, -NR min 2, wherein R min is alkyl with 1 to 3 carbon atoms, -SH, -CN, -N3 or hydrogen, or is the same as R<1>, or is lower alkyl, lower alkenyl, phenyl, or phenyl substituted with lower alkyl or lower alkoxy; R<3> to R<6> are independently lower alkyl, lower alkenyl, phenyl or lower alkyl-phenyl; and p>/= 1, q and r >/=0. |
