Cargando…
Alternating Gyroid Network Structure in an ABC Miktoarm Terpolymer Comprised of Polystyrene and Two Polydienes
The synthesis, molecular and morphological characterization of a 3-miktoarm star terpolymer of polystyrene (PS, [Formula: see text] = 61.0 kg/mol), polybutadiene (PB, [Formula: see text] = 38.2 kg/mol) and polyisoprene (PI, [Formula: see text] = 29.2 kg/mol), corresponding to volume fractions (φ) of...
Autores principales: | , , , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7466615/ https://www.ncbi.nlm.nih.gov/pubmed/32751589 http://dx.doi.org/10.3390/nano10081497 |
_version_ | 1783577854519279616 |
---|---|
author | Moschovas, Dimitrios Manesi, Gkreti-Maria Karydis-Messinis, Andreas Zapsas, George Ntetsikas, Konstantinos Zafeiropoulos, Nikolaos E. Piryazev, Alexey A. Thomas, Edwin L. Hadjichristidis, Nikos Ivanov, Dimitri A. Avgeropoulos, Apostolos |
author_facet | Moschovas, Dimitrios Manesi, Gkreti-Maria Karydis-Messinis, Andreas Zapsas, George Ntetsikas, Konstantinos Zafeiropoulos, Nikolaos E. Piryazev, Alexey A. Thomas, Edwin L. Hadjichristidis, Nikos Ivanov, Dimitri A. Avgeropoulos, Apostolos |
author_sort | Moschovas, Dimitrios |
collection | PubMed |
description | The synthesis, molecular and morphological characterization of a 3-miktoarm star terpolymer of polystyrene (PS, [Formula: see text] = 61.0 kg/mol), polybutadiene (PB, [Formula: see text] = 38.2 kg/mol) and polyisoprene (PI, [Formula: see text] = 29.2 kg/mol), corresponding to volume fractions (φ) of 0.46, 0.31 and 0.23 respectively, was studied. The major difference of the present material from previous ABC miktoarm stars (which is a star architecture bearing three different segments, all connected to a single junction point) with the same block components is the high 3,4-microstructure (55%) of the PI chains. The interaction parameter and the degree of polymerization of the two polydienes is sufficiently positive to create a three-phase microdomain structure as evidenced by differential scanning calorimetry and transmission electron microscopy (TEM). These results in combination with small-angle X-ray scattering (SAXS) and birefringence experiments suggest a cubic tricontinuous network structure, based on the I4(1)32 space group never reported previously for such an architecture. |
format | Online Article Text |
id | pubmed-7466615 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-74666152020-09-14 Alternating Gyroid Network Structure in an ABC Miktoarm Terpolymer Comprised of Polystyrene and Two Polydienes Moschovas, Dimitrios Manesi, Gkreti-Maria Karydis-Messinis, Andreas Zapsas, George Ntetsikas, Konstantinos Zafeiropoulos, Nikolaos E. Piryazev, Alexey A. Thomas, Edwin L. Hadjichristidis, Nikos Ivanov, Dimitri A. Avgeropoulos, Apostolos Nanomaterials (Basel) Article The synthesis, molecular and morphological characterization of a 3-miktoarm star terpolymer of polystyrene (PS, [Formula: see text] = 61.0 kg/mol), polybutadiene (PB, [Formula: see text] = 38.2 kg/mol) and polyisoprene (PI, [Formula: see text] = 29.2 kg/mol), corresponding to volume fractions (φ) of 0.46, 0.31 and 0.23 respectively, was studied. The major difference of the present material from previous ABC miktoarm stars (which is a star architecture bearing three different segments, all connected to a single junction point) with the same block components is the high 3,4-microstructure (55%) of the PI chains. The interaction parameter and the degree of polymerization of the two polydienes is sufficiently positive to create a three-phase microdomain structure as evidenced by differential scanning calorimetry and transmission electron microscopy (TEM). These results in combination with small-angle X-ray scattering (SAXS) and birefringence experiments suggest a cubic tricontinuous network structure, based on the I4(1)32 space group never reported previously for such an architecture. MDPI 2020-07-30 /pmc/articles/PMC7466615/ /pubmed/32751589 http://dx.doi.org/10.3390/nano10081497 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Moschovas, Dimitrios Manesi, Gkreti-Maria Karydis-Messinis, Andreas Zapsas, George Ntetsikas, Konstantinos Zafeiropoulos, Nikolaos E. Piryazev, Alexey A. Thomas, Edwin L. Hadjichristidis, Nikos Ivanov, Dimitri A. Avgeropoulos, Apostolos Alternating Gyroid Network Structure in an ABC Miktoarm Terpolymer Comprised of Polystyrene and Two Polydienes |
title | Alternating Gyroid Network Structure in an ABC Miktoarm Terpolymer Comprised of Polystyrene and Two Polydienes |
title_full | Alternating Gyroid Network Structure in an ABC Miktoarm Terpolymer Comprised of Polystyrene and Two Polydienes |
title_fullStr | Alternating Gyroid Network Structure in an ABC Miktoarm Terpolymer Comprised of Polystyrene and Two Polydienes |
title_full_unstemmed | Alternating Gyroid Network Structure in an ABC Miktoarm Terpolymer Comprised of Polystyrene and Two Polydienes |
title_short | Alternating Gyroid Network Structure in an ABC Miktoarm Terpolymer Comprised of Polystyrene and Two Polydienes |
title_sort | alternating gyroid network structure in an abc miktoarm terpolymer comprised of polystyrene and two polydienes |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7466615/ https://www.ncbi.nlm.nih.gov/pubmed/32751589 http://dx.doi.org/10.3390/nano10081497 |
work_keys_str_mv | AT moschovasdimitrios alternatinggyroidnetworkstructureinanabcmiktoarmterpolymercomprisedofpolystyreneandtwopolydienes AT manesigkretimaria alternatinggyroidnetworkstructureinanabcmiktoarmterpolymercomprisedofpolystyreneandtwopolydienes AT karydismessinisandreas alternatinggyroidnetworkstructureinanabcmiktoarmterpolymercomprisedofpolystyreneandtwopolydienes AT zapsasgeorge alternatinggyroidnetworkstructureinanabcmiktoarmterpolymercomprisedofpolystyreneandtwopolydienes AT ntetsikaskonstantinos alternatinggyroidnetworkstructureinanabcmiktoarmterpolymercomprisedofpolystyreneandtwopolydienes AT zafeiropoulosnikolaose alternatinggyroidnetworkstructureinanabcmiktoarmterpolymercomprisedofpolystyreneandtwopolydienes AT piryazevalexeya alternatinggyroidnetworkstructureinanabcmiktoarmterpolymercomprisedofpolystyreneandtwopolydienes AT thomasedwinl alternatinggyroidnetworkstructureinanabcmiktoarmterpolymercomprisedofpolystyreneandtwopolydienes AT hadjichristidisnikos alternatinggyroidnetworkstructureinanabcmiktoarmterpolymercomprisedofpolystyreneandtwopolydienes AT ivanovdimitria alternatinggyroidnetworkstructureinanabcmiktoarmterpolymercomprisedofpolystyreneandtwopolydienes AT avgeropoulosapostolos alternatinggyroidnetworkstructureinanabcmiktoarmterpolymercomprisedofpolystyreneandtwopolydienes |