Polyelectrolytes with tunable charge based on polydehydroalanine: synthesis and solution propertiesстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 18 декабря 2013 г.
Аннотация:Poly(tert-butoxycarbonylaminomethylacrylate) (PtBAMA), a derivative of polydehydroalanine
(PDha), is synthesized using free radical polymerization (FRP) and nitroxide mediated
polymerization (NMP). Due to the presence of orthogonal protective groups, the resulting
polymers can be selectively deprotected to yield either a polyanion (poly( tert-butoxycarbonyl aminoacrylic acid), PtBAA) or a polycation (poly(aminomethylacrylate), PAMA). Deprotection
of both the amino- and the carboxyl-functionality in a sequential manner leads to the potential polyzwitterion polydehydroalanine (PDha). The pH-dependent solution behavior of PtBAA, PAMA, and PDha are examined in aqueous solution by potentiometric and turbidimetric titrations as well as ζ-potential measurements.