| http://www.w3.org/ns/prov#value | - In the prior art, amino acids, including N-arylglycine and derivatives and including derivatives having at least one polymerizable moiety, were in the acidic form (i.e., the carboxyl groups being protonated by the low pH of the solutions) and/or in the form of a monovalent salt of an alkali element, such as sodium or potassium, or as a readily-hydrolyzable lower alkyl or aryl ester (see U.S. Pat.
|
