| http://www.w3.org/ns/prov#value | - Examples of suitable solvents or dispersants include: water and mixtures of water and an alcohol, for example methanol or ethanol. [0110] Alternatively, a solution or dispersion of the polymer can be formed into a free-standing film on a suitable non-absorbent substrate, e.g. glass, and the solution can then be coagulated by the addition of a non-solvent for the copolymer such as an alkaline solut
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