Abstract
A number of polymer dispersed liquid crystal (PDLC) films based on dimethacrylate monomers were synthesised by polymer-induced phase separation ( PIPS) using polyethylene glycol p(1,1,3,3- tetramethylbutyl)-phenyl ether (TX-100) as an additive up to total solution weight of 10% aiming to modify the initial anchorage force of the liquid crystal (LC) molecules to the polymeric matrix. The effects of the addition of this additive to the PDLC films were studied resorting to electro-optical studies. Using a fitting model, several parameters were correlated such as the permanent memory effect (PME), the voltage required to achieve 90% of maximum transmittance (E90), the average elastic constant (K) and the rotational viscosity of the director (.). The use of TX-100 results on an increase on the PME and., and decrease on the E90 and K.
Original language | English |
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Pages (from-to) | 124-130 |
Number of pages | 7 |
Journal | Liquid Crystals |
Volume | 43 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2 Jan 2016 |
Keywords
- anchorage force
- dynamic analysis
- PDLC
- Permanent Memory Effect
- polymeric network