| http://www.w3.org/ns/prov#value | - The invention provides a polymerizable compound within the scope of the general formula: ##STR9## wherein R1 is a group of the general formula -A-, -A-Y1 -B-, -A-Y1 -B-Y2 -C-, or a steroidal moiety, preferably selected of the group of cholesteryl compounds, wherein each A, B and C independently is a substituted or unsubstituted aromatic moiety having 6 to 24 carbon atoms, a substituted or unsubsti
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