• DOI:10.1080/02678292.2015.1061713
• Corpus ID: 101996816

Improvement of permanent memory effect in PDLC films using TX-100 as an additive

@article{daSilva2016ImprovementOP,
  title={Improvement of permanent memory effect in PDLC films using TX-100 as an additive},
  author={Maria Catarina Coutinho Varela da Silva and Jo{\~a}o Luis Figueirinhas and Jo{\~a}o Sotomayor},
  journal={Liquid Crystals},
  year={2016},
  volume={43},
  pages={124 - 130}
}

• Maria Catarina Coutinho Varela da Silva, J. Figueirinhas, João Sotomayor
• Published 2 January 2016
• Chemistry
• Liquid Crystals

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 (γ). The use of TX-100 results on an increase on the PME and γ, and decrease on the E90 and K. Graphical Abstract