Newly designed star-shaped polystyrene: Synthesis and characterization

Eric Cloutet; Jean Luc Fillaut; Didier Astruc; Yves Gnanou

doi:10.1021/ma980587q

Newly designed star-shaped polystyrene: Synthesis and characterization

Eric Cloutet, Jean Luc Fillaut, Didier Astruc^*, Yves Gnanou

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

48 Scopus citations

Abstract

In this study, emphasis is placed on the synthesis of hexaarm star polystyrene obtained via "living" cationic polymerization, using a newly designed hexafunctional initiator (1). This hexafunctional initiator (1) has been prepared via [Fe(C₅H₅)]⁺-induced hexabenzylation of hexamethylbenzene, followed by a regiospecific sequence of reactions meant to generate six phenylethyl chloride (PhEtCl) groups on the para position of the outer rings. The conditions that afford a truly controlled polymerization of styrene were first defined using PhEtCl as the monofunctional model of (1). Finally, these conditions were used to build hexaarm star polymers from (1) as plurifunctional initiator. Well-defined star samples were obtained over a wide range of molar masses (10³ g/mol ≤ M̄_n < 10₅ g/mol) via this original divergent method.

Original language	English (US)
Pages (from-to)	6748-6755
Number of pages	8
Journal	Macromolecules
Volume	31
Issue number	20
DOIs	https://doi.org/10.1021/ma980587q
State	Published - Oct 6 1998
Externally published	Yes

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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title = "Newly designed star-shaped polystyrene: Synthesis and characterization",

abstract = "In this study, emphasis is placed on the synthesis of hexaarm star polystyrene obtained via {"}living{"} cationic polymerization, using a newly designed hexafunctional initiator (1). This hexafunctional initiator (1) has been prepared via [Fe(C5H5)]+-induced hexabenzylation of hexamethylbenzene, followed by a regiospecific sequence of reactions meant to generate six phenylethyl chloride (PhEtCl) groups on the para position of the outer rings. The conditions that afford a truly controlled polymerization of styrene were first defined using PhEtCl as the monofunctional model of (1). Finally, these conditions were used to build hexaarm star polymers from (1) as plurifunctional initiator. Well-defined star samples were obtained over a wide range of molar masses (103 g/mol ≤ {\=M}n < 105 g/mol) via this original divergent method.",

author = "Eric Cloutet and Fillaut, {Jean Luc} and Didier Astruc and Yves Gnanou",

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AU - Cloutet, Eric

AU - Fillaut, Jean Luc

AU - Astruc, Didier

AU - Gnanou, Yves

PY - 1998/10/6

Y1 - 1998/10/6

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AB - In this study, emphasis is placed on the synthesis of hexaarm star polystyrene obtained via "living" cationic polymerization, using a newly designed hexafunctional initiator (1). This hexafunctional initiator (1) has been prepared via [Fe(C5H5)]+-induced hexabenzylation of hexamethylbenzene, followed by a regiospecific sequence of reactions meant to generate six phenylethyl chloride (PhEtCl) groups on the para position of the outer rings. The conditions that afford a truly controlled polymerization of styrene were first defined using PhEtCl as the monofunctional model of (1). Finally, these conditions were used to build hexaarm star polymers from (1) as plurifunctional initiator. Well-defined star samples were obtained over a wide range of molar masses (103 g/mol ≤ M̄n < 105 g/mol) via this original divergent method.

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Newly designed star-shaped polystyrene: Synthesis and characterization

Abstract

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