prov:value
| - rogen, alkyl, aryl, alkylaryl, fluoroalkyl, fluoroaryl, fluoroalkylaryl or fluorinated polyether; Z is oxygen, NR5, or N-L-(A)m in which A and m are as defined above, L is a linking group and R5 is selected from the group consisting of hydrogen, alkyl, aryl, alkylaryl, fluoroalkyl, fluoroaryl, fluoroalkylaryl, ???COOR1, ???CONR1R2 and substituted derivatives thereof wherein R1 and R2 are independe
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