Spontaneous Formation of left- and right-handed cholesterically ordered domains in an enantioppure chiral polyfluorene film

M. Savoini; P. Biagioni; S.C.J. Meskers; L. Duò; B. Hecht; M. Finazzi

doi:10.1021/jz200524m

Spontaneous Formation of left- and right-handed cholesterically ordered domains in an enantioppure chiral polyfluorene film

M. Savoini, P. Biagioni, S.C.J. Meskers, L. Duò, B. Hecht, M. Finazzi

Research output: Contribution to journal › Article › Academic › peer-review

17 Citations (Scopus)

Abstract

Thermally annealed chiral polyfluorene films are studied by circular differential optical microscopy. We observe the presence of micrometer-sized domains displaying circular dichroism of opposite sign. Our findings suggest the spontaneous occurrence of left- and right-handed cholesterically ordered domains from an enantiopure precursor. The role of enantiopure stereo centers in the side chains of the polymer is to lower the energy of the left-handed cholesteric domains with respect to the right-handed ones.

Original language	English
Pages (from-to)	1359-1362
Number of pages	3
Journal	Journal of Physical Chemistry Letters
Volume	2
Issue number	12
DOIs	https://doi.org/10.1021/jz200524m
Publication status	Published - 2011

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abstract = "Thermally annealed chiral polyfluorene films are studied by circular differential optical microscopy. We observe the presence of micrometer-sized domains displaying circular dichroism of opposite sign. Our findings suggest the spontaneous occurrence of left- and right-handed cholesterically ordered domains from an enantiopure precursor. The role of enantiopure stereo centers in the side chains of the polymer is to lower the energy of the left-handed cholesteric domains with respect to the right-handed ones.",

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AU - Savoini, M.

AU - Biagioni, P.

AU - Meskers, S.C.J.

AU - Duò, L.

AU - Hecht, B.

AU - Finazzi, M.

PY - 2011

Y1 - 2011

N2 - Thermally annealed chiral polyfluorene films are studied by circular differential optical microscopy. We observe the presence of micrometer-sized domains displaying circular dichroism of opposite sign. Our findings suggest the spontaneous occurrence of left- and right-handed cholesterically ordered domains from an enantiopure precursor. The role of enantiopure stereo centers in the side chains of the polymer is to lower the energy of the left-handed cholesteric domains with respect to the right-handed ones.

AB - Thermally annealed chiral polyfluorene films are studied by circular differential optical microscopy. We observe the presence of micrometer-sized domains displaying circular dichroism of opposite sign. Our findings suggest the spontaneous occurrence of left- and right-handed cholesterically ordered domains from an enantiopure precursor. The role of enantiopure stereo centers in the side chains of the polymer is to lower the energy of the left-handed cholesteric domains with respect to the right-handed ones.

U2 - 10.1021/jz200524m

DO - 10.1021/jz200524m

M3 - Article

SN - 1948-7185

VL - 2

SP - 1359

EP - 1362

JO - Journal of Physical Chemistry Letters

JF - Journal of Physical Chemistry Letters

IS - 12

ER -

Spontaneous Formation of left- and right-handed cholesterically ordered domains in an enantioppure chiral polyfluorene film

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