| http://www.w3.org/ns/prov#value | - (vi) the group X is represented by -(L)y-P, with the proviso that at least one P is different from an oxetane functional group, then w is 1, y is an integer from 2 to 25, and z is 1 and -(L)y- comprises a linear sequence of at least 25 bonds, preferably at least 30 bonds between the mesogen and P; (vii) the group X is represented by -(L)w-[(L)w-P]y, then each w is independently an integer from 1 t
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