Enhancement of the optical response in a biodegradable polymer/azo-dye film by the addition of carbon nanotubes

A new biodegradable photoresponsive material was developed using poly(lactic acid) (PLA) as the matrix material and Disperse Orange 3 (DO3) as photoisomerizable azo-dye. It was observed that the addition of multi-walled carbon nanotubes (MWCNTs) leads to a new phenomenon consisting of an enhancement...

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Autores principales: Costanzo, G.D., Ribba, L., Goyanes, S., Ledesma, S.
Formato: JOUR
Materias:
azo-dye
biodegradable material
carbon nanotubes
optical properties
photosensitive material
Azo dyes
Carbon nanotubes
Materials
Nanocomposites
Optical properties
Biodegra-dable materials
Matrix materials
Optical response
Photo-responsive
Photosensitive materials
Polylactic acids
Room temperature
Spectroscopic data
Optical anisotropy
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00223727_v47_n13_p_Costanzo
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00223727_v47_n13_p_Costanzo
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spelling todo:paper_00223727_v47_n13_p_Costanzo2023-10-03T14:32:24Z Enhancement of the optical response in a biodegradable polymer/azo-dye film by the addition of carbon nanotubes Costanzo, G.D. Ribba, L. Goyanes, S. Ledesma, S. azo-dye biodegradable material carbon nanotubes optical properties photosensitive material Azo dyes Carbon nanotubes Materials Nanocomposites Optical properties Biodegra-dable materials Matrix materials Optical response Photo-responsive Photosensitive materials Polylactic acids Room temperature Spectroscopic data Optical anisotropy A new biodegradable photoresponsive material was developed using poly(lactic acid) (PLA) as the matrix material and Disperse Orange 3 (DO3) as photoisomerizable azo-dye. It was observed that the addition of multi-walled carbon nanotubes (MWCNTs) leads to a new phenomenon consisting of an enhancement of the optical anisotropy in a wide range of temperatures. In particular, the optical anisotropy increases 100% at room temperature. Moreover, the material containing MWCNTs shows a faster optical response that is evidenced as an increase in the growth rate of optical anisotropy. Spectroscopic data is provided to study the interaction among DO3, MWCNTs and PLA. The enhancement of optical anisotropy obtained with the addition of MWCNTs was related to the glass transition temperature (Tg) of each material. Maximum optical anisotropy was obtained 15 °C below the Tg for both materials. Results are interpreted in terms of the interactions among DO3, MWCNTs and PLA and the packing density of the dye into the polymer chains. © 2014 IOP Publishing Ltd. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00223727_v47_n13_p_Costanzo
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic azo-dye
biodegradable material
carbon nanotubes
optical properties
photosensitive material
Azo dyes
Carbon nanotubes
Materials
Nanocomposites
Optical properties
Biodegra-dable materials
Matrix materials
Optical response
Photo-responsive
Photosensitive materials
Polylactic acids
Room temperature
Spectroscopic data
Optical anisotropy
spellingShingle azo-dye
biodegradable material
carbon nanotubes
optical properties
photosensitive material
Azo dyes
Carbon nanotubes
Materials
Nanocomposites
Optical properties
Biodegra-dable materials
Matrix materials
Optical response
Photo-responsive
Photosensitive materials
Polylactic acids
Room temperature
Spectroscopic data
Optical anisotropy
Costanzo, G.D.
Ribba, L.
Goyanes, S.
Ledesma, S.
Enhancement of the optical response in a biodegradable polymer/azo-dye film by the addition of carbon nanotubes
topic_facet azo-dye
biodegradable material
carbon nanotubes
optical properties
photosensitive material
Azo dyes
Carbon nanotubes
Materials
Nanocomposites
Optical properties
Biodegra-dable materials
Matrix materials
Optical response
Photo-responsive
Photosensitive materials
Polylactic acids
Room temperature
Spectroscopic data
Optical anisotropy
description A new biodegradable photoresponsive material was developed using poly(lactic acid) (PLA) as the matrix material and Disperse Orange 3 (DO3) as photoisomerizable azo-dye. It was observed that the addition of multi-walled carbon nanotubes (MWCNTs) leads to a new phenomenon consisting of an enhancement of the optical anisotropy in a wide range of temperatures. In particular, the optical anisotropy increases 100% at room temperature. Moreover, the material containing MWCNTs shows a faster optical response that is evidenced as an increase in the growth rate of optical anisotropy. Spectroscopic data is provided to study the interaction among DO3, MWCNTs and PLA. The enhancement of optical anisotropy obtained with the addition of MWCNTs was related to the glass transition temperature (Tg) of each material. Maximum optical anisotropy was obtained 15 °C below the Tg for both materials. Results are interpreted in terms of the interactions among DO3, MWCNTs and PLA and the packing density of the dye into the polymer chains. © 2014 IOP Publishing Ltd.
format JOUR
author Costanzo, G.D.
Ribba, L.
Goyanes, S.
Ledesma, S.
author_facet Costanzo, G.D.
Ribba, L.
Goyanes, S.
Ledesma, S.
author_sort Costanzo, G.D.
title Enhancement of the optical response in a biodegradable polymer/azo-dye film by the addition of carbon nanotubes
title_short Enhancement of the optical response in a biodegradable polymer/azo-dye film by the addition of carbon nanotubes
title_full Enhancement of the optical response in a biodegradable polymer/azo-dye film by the addition of carbon nanotubes
title_fullStr Enhancement of the optical response in a biodegradable polymer/azo-dye film by the addition of carbon nanotubes
title_full_unstemmed Enhancement of the optical response in a biodegradable polymer/azo-dye film by the addition of carbon nanotubes
title_sort enhancement of the optical response in a biodegradable polymer/azo-dye film by the addition of carbon nanotubes
url http://hdl.handle.net/20.500.12110/paper_00223727_v47_n13_p_Costanzo
work_keys_str_mv AT costanzogd enhancementoftheopticalresponseinabiodegradablepolymerazodyefilmbytheadditionofcarbonnanotubes
AT ribbal enhancementoftheopticalresponseinabiodegradablepolymerazodyefilmbytheadditionofcarbonnanotubes
AT goyaness enhancementoftheopticalresponseinabiodegradablepolymerazodyefilmbytheadditionofcarbonnanotubes
AT ledesmas enhancementoftheopticalresponseinabiodegradablepolymerazodyefilmbytheadditionofcarbonnanotubes
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