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Synthesis of polystyrene-polysiloxane side-chain liquid crystalline block copolymers (1998)

Moment, Aaron ; Miranda, Ruben ; Hammond, Paula T.

Weinheim : Wiley-Blackwell

Macromolecular Rapid Communications 19 (1998), S. 573-579

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ISSN: 1022-1336

Keywords: Chemistry ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Physics

Notes: The synthesis of a new liquid crystalline block copolymer consisting of a polystyrene block and a side-chain liquid crystalline siloxane block is reported. The synthetic approach described is based on the anionic polymerization of styrene and cyclic trimethyltrivinyltrisiloxane monomers, followed by functionalization of the siloxane block with side chain mesogens. The siloxane block has a Tg well below 25°C and is designed to exhibit a chiral smectic C* phase at room temperature. These block copolymers are the first side-chain liquid crystalline block copolymers which contain both a high Tg glassy block and a low Tg liquid crystalline block.

Additional Material: 4 Ill.

Type of Medium: Electronic Resource

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