Poly[(2,2′,5′,2″-tetramethoxy-p-terphenyl-5,5″-y lene)propylene]: Synthesis and physical properties of a novel amorphous regularly segmented conjugated polymer

A new regularly segmented conjugated polymer with methoxy-substituted p-terphenylene units tethered by their meta positions along the polymer main chain was synthesised using the Suzuki cross-coupling reaction. The small size of the connector and lack of long lateral chains lead to a high density of...

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Autores principales: Del Rosso, P.G., Almassio, M.F., Aramendia, P., Antollini, S.S., Garay, R.O.
Formato: JOUR
Materias:
Amorphous
Luminescent
Segmented conjugated polymer
Synthesis
Amorphous materials
Chain length
Density (specific gravity)
Light absorption
Luminescence
Photoluminescence spectroscopy
Synthesis (chemical)
Ultraviolet radiation
Amorphous polymers
Cross coupling reactions
Polymer chain
Time resolved photoluminescence emission spectroscopy
Conjugated polymers
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00143057_v43_n6_p2584_DelRosso
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00143057_v43_n6_p2584_DelRosso
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spelling todo:paper_00143057_v43_n6_p2584_DelRosso2023-10-03T14:12:14Z Poly[(2,2′,5′,2″-tetramethoxy-p-terphenyl-5,5″-y lene)propylene]: Synthesis and physical properties of a novel amorphous regularly segmented conjugated polymer Del Rosso, P.G. Almassio, M.F. Aramendia, P. Antollini, S.S. Garay, R.O. Amorphous Luminescent Segmented conjugated polymer Synthesis Amorphous materials Chain length Density (specific gravity) Light absorption Luminescence Photoluminescence spectroscopy Synthesis (chemical) Ultraviolet radiation Amorphous polymers Cross coupling reactions Polymer chain Time resolved photoluminescence emission spectroscopy Conjugated polymers A new regularly segmented conjugated polymer with methoxy-substituted p-terphenylene units tethered by their meta positions along the polymer main chain was synthesised using the Suzuki cross-coupling reaction. The small size of the connector and lack of long lateral chains lead to a high density of rigid electrooptically active moieties in the structure. However, this molecular architecture produces a very soluble and amorphous polymer with relatively high Tg. The optical properties of samples with different degrees of polymerisation were investigated using UV-visible absorption, steady state and time-resolved photoluminescence emission spectroscopies. Their absorption and emission properties are rather insensible to Mn after reaching a modest DP, to the aggregation state, either solution or neat film, and to annealing. The contorted polymer chain forms a very stable morphology and substantially hinders interactions between chromophores, thus diminishing the formation of aggregated species that are commonly observed in other electrooptically active polymers. © 2007 Elsevier Ltd. All rights reserved. Fil:Aramendia, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00143057_v43_n6_p2584_DelRosso
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Amorphous
Luminescent
Segmented conjugated polymer
Synthesis
Amorphous materials
Chain length
Density (specific gravity)
Light absorption
Luminescence
Photoluminescence spectroscopy
Synthesis (chemical)
Ultraviolet radiation
Amorphous polymers
Cross coupling reactions
Polymer chain
Time resolved photoluminescence emission spectroscopy
Conjugated polymers
spellingShingle Amorphous
Luminescent
Segmented conjugated polymer
Synthesis
Amorphous materials
Chain length
Density (specific gravity)
Light absorption
Luminescence
Photoluminescence spectroscopy
Synthesis (chemical)
Ultraviolet radiation
Amorphous polymers
Cross coupling reactions
Polymer chain
Time resolved photoluminescence emission spectroscopy
Conjugated polymers
Del Rosso, P.G.
Almassio, M.F.
Aramendia, P.
Antollini, S.S.
Garay, R.O.
Poly[(2,2′,5′,2″-tetramethoxy-p-terphenyl-5,5″-y lene)propylene]: Synthesis and physical properties of a novel amorphous regularly segmented conjugated polymer
topic_facet Amorphous
Luminescent
Segmented conjugated polymer
Synthesis
Amorphous materials
Chain length
Density (specific gravity)
Light absorption
Luminescence
Photoluminescence spectroscopy
Synthesis (chemical)
Ultraviolet radiation
Amorphous polymers
Cross coupling reactions
Polymer chain
Time resolved photoluminescence emission spectroscopy
Conjugated polymers
description A new regularly segmented conjugated polymer with methoxy-substituted p-terphenylene units tethered by their meta positions along the polymer main chain was synthesised using the Suzuki cross-coupling reaction. The small size of the connector and lack of long lateral chains lead to a high density of rigid electrooptically active moieties in the structure. However, this molecular architecture produces a very soluble and amorphous polymer with relatively high Tg. The optical properties of samples with different degrees of polymerisation were investigated using UV-visible absorption, steady state and time-resolved photoluminescence emission spectroscopies. Their absorption and emission properties are rather insensible to Mn after reaching a modest DP, to the aggregation state, either solution or neat film, and to annealing. The contorted polymer chain forms a very stable morphology and substantially hinders interactions between chromophores, thus diminishing the formation of aggregated species that are commonly observed in other electrooptically active polymers. © 2007 Elsevier Ltd. All rights reserved.
format JOUR
author Del Rosso, P.G.
Almassio, M.F.
Aramendia, P.
Antollini, S.S.
Garay, R.O.
author_facet Del Rosso, P.G.
Almassio, M.F.
Aramendia, P.
Antollini, S.S.
Garay, R.O.
author_sort Del Rosso, P.G.
title Poly[(2,2′,5′,2″-tetramethoxy-p-terphenyl-5,5″-y lene)propylene]: Synthesis and physical properties of a novel amorphous regularly segmented conjugated polymer
title_short Poly[(2,2′,5′,2″-tetramethoxy-p-terphenyl-5,5″-y lene)propylene]: Synthesis and physical properties of a novel amorphous regularly segmented conjugated polymer
title_full Poly[(2,2′,5′,2″-tetramethoxy-p-terphenyl-5,5″-y lene)propylene]: Synthesis and physical properties of a novel amorphous regularly segmented conjugated polymer
title_fullStr Poly[(2,2′,5′,2″-tetramethoxy-p-terphenyl-5,5″-y lene)propylene]: Synthesis and physical properties of a novel amorphous regularly segmented conjugated polymer
title_full_unstemmed Poly[(2,2′,5′,2″-tetramethoxy-p-terphenyl-5,5″-y lene)propylene]: Synthesis and physical properties of a novel amorphous regularly segmented conjugated polymer
title_sort poly[(2,2′,5′,2″-tetramethoxy-p-terphenyl-5,5″-y lene)propylene]: synthesis and physical properties of a novel amorphous regularly segmented conjugated polymer
url http://hdl.handle.net/20.500.12110/paper_00143057_v43_n6_p2584_DelRosso
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