| http://www.w3.org/ns/prov#value | - The polymer composition of claim 1, provided that when any of R1 to R4 is a hydrocarbyl group, R1 to R4 independently comprises a hydrocarbyl, a halogenated hydrocarbyl or a perhalogenated hydrocarbyl group which are selected from: i) linear or branched C1-C10 alkyl groups; ii) linear or branched C2-C10 alkenyl groups; iii) linear or branched C2-C10 alkynyl groups; iv) C4-C12 cycloalkyl groups; v)
|
