Electrooptic behaviour of a nematic MBBA layer with a thick interfacial surfactant layer

✍ Scribed by H. P. Hinov

• Publisher: John Wiley and Sons
• Year: 1987
• Tongue: English
• Weight: 374 KB
• Volume: 22
• Category: Article
• ISSN: 0232-1300
• DOI: 10.1002/crat.2170220327

✦ Synopsis

The elect1 o-optic behaviorir of MRBA nematic layers with various surfactants tttltlrtl of aziionic,, c.ationic, zwittc.rionw and non-ionic character and a consi<lerable amctiint (2wt7, t o 8 wt06) wa$ studiecl. The fortnation of surface-induced flexoelectric domains in all rase5 clcarly showctl that the anchoring of the liquid crystal layers has been weak. Such a weak anchoring can be explained with the formation of a perioidr (in the Inost simple case sinusoiclul) MBBA-surfactant interface bounclary with a mutual penetration of thc liquicl crystal ant1 surfactant tiiolec~ules with some gradient. h I n o zxccnexoBaHo ~J I ~I ~T ~O O ~T H Y ~C K O ~ IIoBeaeHYre MEGA HeMaTmecitnx cnoen c no-6aBJIeHHbIMM pa3JIAsHLIVIl.I IIOBePXHOCTHO-aKTIIBHbIMH BeIUeCTBaMK (2 BeC.% -8 BeC.yb) BIIAOHHOTO, I<aTAOHHOI' O, I[BATep-~AOHHOrO A Hel%OHHOrO XapaKTepa. ~0pMHI)OBaIIHe nOBepXHOCTH0 AHJQJ4HpOBaHHbIX @JIeKC03JIeIiTpHqeCKHX AOMeHOB BO BCeX CJIysaRX