A novel multicomponent polymer poly[(S)-ML-PPCA], bearing three distinct functional groups (i.e. azoaromatic, carbazole and chiral of one single configuration) jointly linked to the side chain has been synthesized and its properties compared to those of a similar derivative poly[M-PPCA], lacking of the chiral moiety, as far as photochromism and photoconductivity are concerned. Due to the presence of the chiral moiety, poly[(S)-ML-PPCA], besides higher optical activity than the related monomer, displays additional chiroptical properties with respect to poly[M-PPCA], allowing in particular the assessment of its photoresponsive properties connected to the trans-cis isomerization of the azoaromatic double bond by circular dichroism measurements and giving therefore the possibility of application as chiroptical switch too.
Luigi Angiolini, Tiziana Benelli, Loris Giorgini, Attilio Golemme, Laura Mazzocchetti, Roberto Termine (2014). Effect of a chiral substituent on the photochromic and photoconductive properties of a methacrylic polymer bearing side chain azocarbazole moieties. DYES AND PIGMENTS, 102, 53-62 [10.1016/j.dyepig.2013.10.024].
Effect of a chiral substituent on the photochromic and photoconductive properties of a methacrylic polymer bearing side chain azocarbazole moieties
ANGIOLINI, LUIGI;BENELLI, TIZIANA;GIORGINI, LORIS;MAZZOCCHETTI, LAURA;
2014
Abstract
A novel multicomponent polymer poly[(S)-ML-PPCA], bearing three distinct functional groups (i.e. azoaromatic, carbazole and chiral of one single configuration) jointly linked to the side chain has been synthesized and its properties compared to those of a similar derivative poly[M-PPCA], lacking of the chiral moiety, as far as photochromism and photoconductivity are concerned. Due to the presence of the chiral moiety, poly[(S)-ML-PPCA], besides higher optical activity than the related monomer, displays additional chiroptical properties with respect to poly[M-PPCA], allowing in particular the assessment of its photoresponsive properties connected to the trans-cis isomerization of the azoaromatic double bond by circular dichroism measurements and giving therefore the possibility of application as chiroptical switch too.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
