Patent ID: 6818718
Filing Date: 2004-11-16
Classification: C07C,C08F

Abstract:
A method of separating molecules comprising providing a cross-linked polymer gel comprising a cross-linking moiety of the formula: whereinX and Xâ€² are independently selected from the group consisting of â€”Oâ€”, â€”Oâ€” and â€”NRâ€”, where R is H, alkyl or cycloalkyl, Y is an optionally substituted non-aromatic divalent linking group, Z is O or S; and R2 is a C1-C4 alkyl group, provided that when said crosslinked polymer gel is a non-aqueous polymer gel and R2 is CH3 and Y is â€”CH2â€”CH2â€”, X, Xâ€² and Z are not all O, placing a sample containing the molecules to be separated onto the gel, and subjecting the gel and sample to a separation technique.