Core cross-linked amphiphilic star-block copolymers with (meth)acrylic acid shells prepared by atom transfer radical polymerization

Autor: Raffaella Suriano, Andrés F. Cardozo, Stefano Turri, Eric Manoury, Rinaldo Poli, Andrea Carletto
Přispěvatelé: Laboratoire de chimie de coordination (LCC), Institut de Chimie de Toulouse (ICT), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), Politecnico di Milano [Milan] (POLIMI), Institut Universitaire de France (IUF), Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie de Toulouse (ICT-FR 2599), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Israel Journal of Chemistry
Israel Journal of Chemistry, 2012, Controlled Radical Polymerizations: Wolf Prize for Krzysztof Matyjaszewski, 52 (3-4), pp.328-338. ⟨10.1002/ijch.201100125⟩
Israel Journal of Chemistry, Wiley-VCH Verlag, 2012, Controlled Radical Polymerizations: Wolf Prize for Krzysztof Matyjaszewski, 52 (3-4), pp.328-338. ⟨10.1002/ijch.201100125⟩
ISSN: 0021-2148
DOI: 10.1002/ijch.201100125⟩
Popis: International audience; Core cross‐linked amphiphilic star‐block copolymers were prepared by hydrolysis of the outer shell of star‐block copolymers prepared using copper mediated atom transfer radical polymerization (ATRP). In an arm‐first approach, linear poly(tert‐butyl methacrylate) macroinitiators (Pt BMA‐Cl) were extended with styrene to yield Pt BMA‐b‐PS‐Cl and then cross‐linked with divinylbenzene (DVB) in order to yield (Pt BMA‐b‐ PS)arms‐PDVBcore star‐block copolymers. Then, PMAA‐b‐ PS block and (PMAA‐PS)arms‐PDVBcore star‐block copolymers were obtained by hydrolysis of the Pt BMA blocks in both linear and cross‐linked copolymers, as confirmed by 1H NMR analyses. The amphiphilic character of these copolymers was confirmed by solubilisation in water. Several factors affecting the polymer aggregation and solubility such as the length, the composition of the arms and the catalyst used were studied. An acrylate analogue, that is, (PAA‐b‐ PS)arms‐PDVBcore, was also prepared for comparison purposes. Atomic force microscopy (AFM) and differential scanning calorimetry (DSC) were used to elucidate the morphology and the thermal behaviour of the star‐block copolymers.
Databáze: OpenAIRE
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