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Article | REF: AM3340 V1

Polystyrene and styrene copolymers

Authors: Philippe HEIM, Olivier de LINARÈS, Laure HYM

Publication date: July 10, 2002 | Lire en français

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     INTRODUCTION

    Styrene's compatibility with a wide range of monomers and polymers has led to the development of a diverse family of styrenic polymers with properties ranging from transparent to opaque, from brittle to impact-resistant, from rigid to elastomeric. Table 1 summarizes the main styrenic polymers, their constituent monomers and their main properties.

    This article deals with the following styrenic polymers:

    • polystyrene or standard PS, amorphous, brittle and transparent, often called crystal PS because of its clarity;

    • PS impact, a polybutadiene/styrene copolymer, also known as HIPS, which is impact-resistant but opaque;

    • styrene-rich SB styrene/butadiene block copolymers, also known as impact-resistant, transparent CLIPS.

    Table 1 - 

    Main styrenic polymers

    Comonomers used with styrene

    (1)

    The percentages indicated are mass contents.

    		Polymerization...
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