| http://www.w3.org/ns/prov#value | - For example, an anionic polymer, such as carboxymethylcellulose, can be cross-linked with varying amounts of a cationic polymer, such as poly(lysine), while a cationic polymer, such as diethylaminoethylcellulose can be cross-linked with an anionic polymer, such as poly(glutamic acid).
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