Microenvironment of polymer chains in solution: pK a of indicators bound to the polymer chain

…, J Labský, D Výprachtický, J Chalabala

Index: Mikes, Frantisek; Labsky, Jiri; Vyprachticky, Drahomir; Chalabala, Jiri Collection of Czechoslovak Chemical Communications, 1990 , vol. 55, # 9 p. 2226 - 2232

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Abstract

Abstract Polymers bearing at the end of side chains acidobasic indicator moieties exhibiting a solvatochromic absorption band were prepared by a polymeranalogous reaction of copolymers N-(2-hydroxy propyl) methacrylamide-N-methacryloylated 4-nitrophenyl ester ω- aminoacids with 1-(2-aminoethyl)-4-(4-hydroxystyryl) pyridinium bromide. It was found that pK a of reporters bound at a medium long side chain (six methylene groups) is close to pK ...