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Shear‐induced orientation of side‐group liquid‐crystalline polymers
Author(s) -
Kannan Rangaramanujam M.,
Kornfield Julia A.,
Schwenk Norbert,
Boeffel Christine
Publication year - 1994
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.19940060305
Subject(s) - materials science , schematic , polymer , liquid crystalline , shear (geology) , liquid crystal , pendant group , shear flow , side chain , composite material , nanotechnology , optoelectronics , mechanics , physics , electronic engineering , engineering
Side group liquid‐crystalline polymers (SG‐LCP) will need to be macroscopically oriented if the applications foreseen for them are to be realized. The first observation of oscillatory‐sheer‐induced alignment of an SG‐LCP melt (the Figure shows a schematic of the rheo‐optical apparatus used) is reported. This discovery widens the potential applications of SG‐LCPs, but also raises fundamental questions regarding the mechanism of flow‐induced alignment.