Polymerization of bis[3-(diethoxyphosphoryl)propyl]diallylammonium chloride
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United States of America Patent
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Sep 1, 2015
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Dec 23, 2013
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Dec 23, 2013
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Abstract
A symmetrically substituted cationic monomer and its corresponding cationic polyelectrolyte (CPE) (+) bearing two identical (diethoxyphosphoryl)propyl pendent groups on repeating pyrrolidinium units. Phosphonate ester hydrolysis in (CPE) (+) forms a pH-responsive cationic polyacid (CPA) (+). The (CPA) (+) is converted under pH-induced transformation into a polyzwitterion acid (±) (PZA) or a polyzwitterion/anion (±−) (PZAN) or a polyzwitterion/dianion (±=) (PZDAN) or a polyzwitterion/trianion (±≡) (PZTAN).
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