Synthesis of amphiphilic block-gradient copolymers of styrene and acrylic acid by Nitroxide Mediated Polymerization

We present an overview on synthesis of amphiphilic ionic block-gradient copolymers of styrene and acrylic acid by means of one step direct Nitroxide Mediated Polymerization (NMP) and their characterization. The copolymers comprise a block of poly(acrylic acid) and one or two terminal blocks that inc...

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Bibliographic Details
Published inPolymer science. Series C Vol. 57; no. 1; pp. 86 - 93
Main Authors Borisova, O. V., Billon, L., Zaremski, M. Yu, Borisov, O. V.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.09.2015
MAIK Nauka/Interperiodica
Subjects
Chemical Sciences
Chemistry
Chemistry and Materials Science
Polymer Sciences
Polymer Science Series
Reactivity Ratio
Diblock Copolymer
Styrene
Acrylic Acid
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Summary:We present an overview on synthesis of amphiphilic ionic block-gradient copolymers of styrene and acrylic acid by means of one step direct Nitroxide Mediated Polymerization (NMP) and their characterization. The copolymers comprise a block of poly(acrylic acid) and one or two terminal blocks that include co-monomer units of styrene and acrylic acid in variable proportion. Using 1 H NMR the gradient sequence of the poly(acrylic acid- co -styrene) copolymer block has been confirmed. In contrast to diblock copolymers of styrene and acrylic acid, that are known to form in aqueous environment “frozen” aggregates with glassy poly(styrene) core, the novel block gradient copolymers exhibit stimuli-responsive aggregation behavior, as was demonstrated by subsequent studies. This feature makes them very promising for design of a large variety of smart functional materials.
ISSN:1811-2382
1555-614X
DOI:10.1134/S1811238215010014