Helical Mechanoclinic Deformation of Main-Chain Chiral Smectic Elastomers

✍ Scribed by Tohru Tashiro; Yui Kondo; Kazuyuki Hiraoka

• Book ID: 102944362
• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 660 KB
• Volume: 31
• Category: Article
• ISSN: 1022-1336
• DOI: 10.1002/marc.201000455

✦ Synopsis

Abstract

The helical mechanoclinic deformation of a main‐chain chiral smectic elastomer, which is prepared by a crosslinking reaction under twist deformation, is investigated. The twist deformation induces a layer tilt angle that depends on the handedness of twist. The layer tilt angle in the right‐handedly twisted elastomer, of which the handedness is consistent with that of the helix in the SmC* phase of the non‐crosslinked backbone polymer, is estimated to be up to 16° at room temperature, although that in the left‐handedly twisted elastomer is less than several degrees. The experiments provide evidence of chiral coupling between tilt and twist for helical mechanoclinic deformation in the chiral smectic system. magnified image